Rename csharp-netcore to csharp (#15903)

* rename csharp-netcore to csharp

* rename file

* renmae modules/openapi-generator/src/main/resources/csharp-netcore

* update samples

* mv dir

* update samples

* rename csharp-netcore to csharp in appveyor.yml

* update doc

samples/client/petstore/csharp-functions/generatedSrc/Client/ApiClient.cs

@@ -0,0 +1,860 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Globalization;
+using System.IO;
+using System.Linq;
+using System.Net;
+using System.Reflection;
+using System.Runtime.Serialization;
+using System.Runtime.Serialization.Formatters;
+using System.Text;
+using System.Threading;
+using System.Text.RegularExpressions;
+using System.Threading.Tasks;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Serialization;
+using ErrorEventArgs = Newtonsoft.Json.Serialization.ErrorEventArgs;
+using RestSharp;
+using RestSharp.Deserializers;
+using RestSharpMethod = RestSharp.Method;
+using Polly;
+
+namespace Org.OpenAPITools.Client
+{
+    /// <summary>
+    /// Allows RestSharp to Serialize/Deserialize JSON using our custom logic, but only when ContentType is JSON.
+    /// </summary>
+    internal class CustomJsonCodec : RestSharp.Serializers.ISerializer, RestSharp.Deserializers.IDeserializer
+    {
+        private readonly IReadableConfiguration _configuration;
+        private static readonly string _contentType = "application/json";
+        private readonly JsonSerializerSettings _serializerSettings = new JsonSerializerSettings
+        {
+            // OpenAPI generated types generally hide default constructors.
+            ConstructorHandling = ConstructorHandling.AllowNonPublicDefaultConstructor,
+            ContractResolver = new DefaultContractResolver
+            {
+                NamingStrategy = new CamelCaseNamingStrategy
+                {
+                    OverrideSpecifiedNames = false
+                }
+            }
+        };
+
+        public CustomJsonCodec(IReadableConfiguration configuration)
+        {
+            _configuration = configuration;
+        }
+
+        public CustomJsonCodec(JsonSerializerSettings serializerSettings, IReadableConfiguration configuration)
+        {
+            _serializerSettings = serializerSettings;
+            _configuration = configuration;
+        }
+
+        /// <summary>
+        /// Serialize the object into a JSON string.
+        /// </summary>
+        /// <param name="obj">Object to be serialized.</param>
+        /// <returns>A JSON string.</returns>
+        public string Serialize(object obj)
+        {
+            if (obj != null && obj is Org.OpenAPITools.Models.AbstractOpenAPISchema)
+            {
+                // the object to be serialized is an oneOf/anyOf schema
+                return ((Org.OpenAPITools.Models.AbstractOpenAPISchema)obj).ToJson();
+            }
+            else
+            {
+                return JsonConvert.SerializeObject(obj, _serializerSettings);
+            }
+        }
+
+        public T Deserialize<T>(IRestResponse response)
+        {
+            var result = (T)Deserialize(response, typeof(T));
+            return result;
+        }
+
+        /// <summary>
+        /// Deserialize the JSON string into a proper object.
+        /// </summary>
+        /// <param name="response">The HTTP response.</param>
+        /// <param name="type">Object type.</param>
+        /// <returns>Object representation of the JSON string.</returns>
+        internal object Deserialize(IRestResponse response, Type type)
+        {
+            if (type == typeof(byte[])) // return byte array
+            {
+                return response.RawBytes;
+            }
+
+            // TODO: ? if (type.IsAssignableFrom(typeof(Stream)))
+            if (type == typeof(Stream))
+            {
+                var bytes = response.RawBytes;
+                if (response.Headers != null)
+                {
+                    var filePath = string.IsNullOrEmpty(_configuration.TempFolderPath)
+                        ? Path.GetTempPath()
+                        : _configuration.TempFolderPath;
+                    var regex = new Regex(@"Content-Disposition=.*filename=['""]?([^'""\s]+)['""]?$");
+                    foreach (var header in response.Headers)
+                    {
+                        var match = regex.Match(header.ToString());
+                        if (match.Success)
+                        {
+                            string fileName = filePath + ClientUtils.SanitizeFilename(match.Groups[1].Value.Replace("\"", "").Replace("'", ""));
+                            File.WriteAllBytes(fileName, bytes);
+                            return new FileStream(fileName, FileMode.Open);
+                        }
+                    }
+                }
+                var stream = new MemoryStream(bytes);
+                return stream;
+            }
+
+            if (type.Name.StartsWith("System.Nullable`1[[System.DateTime")) // return a datetime object
+            {
+                return DateTime.Parse(response.Content, null, System.Globalization.DateTimeStyles.RoundtripKind);
+            }
+
+            if (type == typeof(string) || type.Name.StartsWith("System.Nullable")) // return primitive type
+            {
+                return Convert.ChangeType(response.Content, type);
+            }
+
+            // at this point, it must be a model (json)
+            try
+            {
+                return JsonConvert.DeserializeObject(response.Content, type, _serializerSettings);
+            }
+            catch (Exception e)
+            {
+                throw new ApiException(500, e.Message);
+            }
+        }
+
+        public string RootElement { get; set; }
+        public string Namespace { get; set; }
+        public string DateFormat { get; set; }
+
+        public string ContentType
+        {
+            get { return _contentType; }
+            set { throw new InvalidOperationException("Not allowed to set content type."); }
+        }
+    }
+    /// <summary>
+    /// Provides a default implementation of an Api client (both synchronous and asynchronous implementations),
+    /// encapsulating general REST accessor use cases.
+    /// </summary>
+    public partial class ApiClient : ISynchronousClient, IAsynchronousClient
+    {
+        private readonly string _baseUrl;
+
+        /// <summary>
+        /// Specifies the settings on a <see cref="JsonSerializer" /> object.
+        /// These settings can be adjusted to accommodate custom serialization rules.
+        /// </summary>
+        public JsonSerializerSettings SerializerSettings { get; set; } = new JsonSerializerSettings
+        {
+            // OpenAPI generated types generally hide default constructors.
+            ConstructorHandling = ConstructorHandling.AllowNonPublicDefaultConstructor,
+            ContractResolver = new DefaultContractResolver
+            {
+                NamingStrategy = new CamelCaseNamingStrategy
+                {
+                    OverrideSpecifiedNames = false
+                }
+            }
+        };
+
+        /// <summary>
+        /// Allows for extending request processing for <see cref="ApiClient"/> generated code.
+        /// </summary>
+        /// <param name="request">The RestSharp request object</param>
+        partial void InterceptRequest(IRestRequest request);
+
+        /// <summary>
+        /// Allows for extending response processing for <see cref="ApiClient"/> generated code.
+        /// </summary>
+        /// <param name="request">The RestSharp request object</param>
+        /// <param name="response">The RestSharp response object</param>
+        partial void InterceptResponse(IRestRequest request, IRestResponse response);
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ApiClient" />, defaulting to the global configurations' base url.
+        /// </summary>
+        public ApiClient()
+        {
+            _baseUrl = Org.OpenAPITools.Client.GlobalConfiguration.Instance.BasePath;
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ApiClient" />
+        /// </summary>
+        /// <param name="basePath">The target service's base path in URL format.</param>
+        /// <exception cref="ArgumentException"></exception>
+        public ApiClient(string basePath)
+        {
+            if (string.IsNullOrEmpty(basePath))
+                throw new ArgumentException("basePath cannot be empty");
+
+            _baseUrl = basePath;
+        }
+
+        /// <summary>
+        /// Constructs the RestSharp version of an http method
+        /// </summary>
+        /// <param name="method">Swagger Client Custom HttpMethod</param>
+        /// <returns>RestSharp's HttpMethod instance.</returns>
+        /// <exception cref="ArgumentOutOfRangeException"></exception>
+        private RestSharpMethod Method(HttpMethod method)
+        {
+            RestSharpMethod other;
+            switch (method)
+            {
+                case HttpMethod.Get:
+                    other = RestSharpMethod.GET;
+                    break;
+                case HttpMethod.Post:
+                    other = RestSharpMethod.POST;
+                    break;
+                case HttpMethod.Put:
+                    other = RestSharpMethod.PUT;
+                    break;
+                case HttpMethod.Delete:
+                    other = RestSharpMethod.DELETE;
+                    break;
+                case HttpMethod.Head:
+                    other = RestSharpMethod.HEAD;
+                    break;
+                case HttpMethod.Options:
+                    other = RestSharpMethod.OPTIONS;
+                    break;
+                case HttpMethod.Patch:
+                    other = RestSharpMethod.PATCH;
+                    break;
+                default:
+                    throw new ArgumentOutOfRangeException("method", method, null);
+            }
+
+            return other;
+        }
+
+        /// <summary>
+        /// Provides all logic for constructing a new RestSharp <see cref="RestRequest"/>.
+        /// At this point, all information for querying the service is known. Here, it is simply
+        /// mapped into the RestSharp request.
+        /// </summary>
+        /// <param name="method">The http verb.</param>
+        /// <param name="path">The target path (or resource).</param>
+        /// <param name="options">The additional request options.</param>
+        /// <param name="configuration">A per-request configuration object. It is assumed that any merge with
+        /// GlobalConfiguration has been done before calling this method.</param>
+        /// <returns>[private] A new RestRequest instance.</returns>
+        /// <exception cref="ArgumentNullException"></exception>
+        private RestRequest NewRequest(
+            HttpMethod method,
+            string path,
+            RequestOptions options,
+            IReadableConfiguration configuration)
+        {
+            if (path == null) throw new ArgumentNullException("path");
+            if (options == null) throw new ArgumentNullException("options");
+            if (configuration == null) throw new ArgumentNullException("configuration");
+
+            RestRequest request = new RestRequest(Method(method))
+            {
+                Resource = path,
+                JsonSerializer = new CustomJsonCodec(SerializerSettings, configuration)
+            };
+
+            if (options.PathParameters != null)
+            {
+                foreach (var pathParam in options.PathParameters)
+                {
+                    request.AddParameter(pathParam.Key, pathParam.Value, ParameterType.UrlSegment);
+                }
+            }
+
+            if (options.QueryParameters != null)
+            {
+                foreach (var queryParam in options.QueryParameters)
+                {
+                    foreach (var value in queryParam.Value)
+                    {
+                        request.AddQueryParameter(queryParam.Key, value);
+                    }
+                }
+            }
+
+            if (configuration.DefaultHeaders != null)
+            {
+                foreach (var headerParam in configuration.DefaultHeaders)
+                {
+                    request.AddHeader(headerParam.Key, headerParam.Value);
+                }
+            }
+
+            if (options.HeaderParameters != null)
+            {
+                foreach (var headerParam in options.HeaderParameters)
+                {
+                    foreach (var value in headerParam.Value)
+                    {
+                        request.AddHeader(headerParam.Key, value);
+                    }
+                }
+            }
+
+            if (options.FormParameters != null)
+            {
+                foreach (var formParam in options.FormParameters)
+                {
+                    request.AddParameter(formParam.Key, formParam.Value);
+                }
+            }
+
+            if (options.Data != null)
+            {
+                if (options.Data is Stream stream)
+                {
+                    var contentType = "application/octet-stream";
+                    if (options.HeaderParameters != null)
+                    {
+                        var contentTypes = options.HeaderParameters["Content-Type"];
+                        contentType = contentTypes[0];
+                    }
+
+                    var bytes = ClientUtils.ReadAsBytes(stream);
+                    request.AddParameter(contentType, bytes, ParameterType.RequestBody);
+                }
+                else
+                {
+                    if (options.HeaderParameters != null)
+                    {
+                        var contentTypes = options.HeaderParameters["Content-Type"];
+                        if (contentTypes == null || contentTypes.Any(header => header.Contains("application/json")))
+                        {
+                            request.RequestFormat = DataFormat.Json;
+                        }
+                        else
+                        {
+                            // TODO: Generated client user should add additional handlers. RestSharp only supports XML and JSON, with XML as default.
+                        }
+                    }
+                    else
+                    {
+                        // Here, we'll assume JSON APIs are more common. XML can be forced by adding produces/consumes to openapi spec explicitly.
+                        request.RequestFormat = DataFormat.Json;
+                    }
+
+                    request.AddJsonBody(options.Data);
+                }
+            }
+
+            if (options.FileParameters != null)
+            {
+                foreach (var fileParam in options.FileParameters)
+                {
+                    var bytes = ClientUtils.ReadAsBytes(fileParam.Value);
+                    var fileStream = fileParam.Value as FileStream;
+                    if (fileStream != null)
+                        request.Files.Add(FileParameter.Create(fileParam.Key, bytes, System.IO.Path.GetFileName(fileStream.Name)));
+                    else
+                        request.Files.Add(FileParameter.Create(fileParam.Key, bytes, "no_file_name_provided"));
+                }
+            }
+
+            if (options.Cookies != null && options.Cookies.Count > 0)
+            {
+                foreach (var cookie in options.Cookies)
+                {
+                    request.AddCookie(cookie.Name, cookie.Value);
+                }
+            }
+
+            return request;
+        }
+
+        private ApiResponse<T> ToApiResponse<T>(IRestResponse<T> response)
+        {
+            T result = response.Data;
+            string rawContent = response.Content;
+
+            var transformed = new ApiResponse<T>(response.StatusCode, new Multimap<string, string>(), result, rawContent)
+            {
+                ErrorText = response.ErrorMessage,
+                Cookies = new List<Cookie>()
+            };
+
+            if (response.Headers != null)
+            {
+                foreach (var responseHeader in response.Headers)
+                {
+                    transformed.Headers.Add(responseHeader.Name, ClientUtils.ParameterToString(responseHeader.Value));
+                }
+            }
+
+            if (response.Cookies != null)
+            {
+                foreach (var responseCookies in response.Cookies)
+                {
+                    transformed.Cookies.Add(
+                        new Cookie(
+                            responseCookies.Name,
+                            responseCookies.Value,
+                            responseCookies.Path,
+                            responseCookies.Domain)
+                        );
+                }
+            }
+
+            return transformed;
+        }
+
+        private ApiResponse<T> Exec<T>(RestRequest req, IReadableConfiguration configuration)
+        {
+            RestClient client = new RestClient(_baseUrl);
+
+            client.ClearHandlers();
+            var existingDeserializer = req.JsonSerializer as IDeserializer;
+            if (existingDeserializer != null)
+            {
+                client.AddHandler("application/json", () => existingDeserializer);
+                client.AddHandler("text/json", () => existingDeserializer);
+                client.AddHandler("text/x-json", () => existingDeserializer);
+                client.AddHandler("text/javascript", () => existingDeserializer);
+                client.AddHandler("*+json", () => existingDeserializer);
+            }
+            else
+            {
+                var customDeserializer = new CustomJsonCodec(SerializerSettings, configuration);
+                client.AddHandler("application/json", () => customDeserializer);
+                client.AddHandler("text/json", () => customDeserializer);
+                client.AddHandler("text/x-json", () => customDeserializer);
+                client.AddHandler("text/javascript", () => customDeserializer);
+                client.AddHandler("*+json", () => customDeserializer);
+            }
+
+            var xmlDeserializer = new XmlDeserializer();
+            client.AddHandler("application/xml", () => xmlDeserializer);
+            client.AddHandler("text/xml", () => xmlDeserializer);
+            client.AddHandler("*+xml", () => xmlDeserializer);
+            client.AddHandler("*", () => xmlDeserializer);
+
+            client.Timeout = configuration.Timeout;
+
+            if (configuration.Proxy != null)
+            {
+                client.Proxy = configuration.Proxy;
+            }
+
+            if (configuration.UserAgent != null)
+            {
+                client.UserAgent = configuration.UserAgent;
+            }
+
+            if (configuration.ClientCertificates != null)
+            {
+                client.ClientCertificates = configuration.ClientCertificates;
+            }
+
+            InterceptRequest(req);
+
+            IRestResponse<T> response;
+            if (RetryConfiguration.RetryPolicy != null)
+            {
+                var policy = RetryConfiguration.RetryPolicy;
+                var policyResult = policy.ExecuteAndCapture(() => client.Execute(req));
+                response = (policyResult.Outcome == OutcomeType.Successful) ? client.Deserialize<T>(policyResult.Result) : new RestResponse<T>
+                {
+                    Request = req,
+                    ErrorException = policyResult.FinalException
+                };
+            }
+            else
+            {
+                response = client.Execute<T>(req);
+            }
+
+            // if the response type is oneOf/anyOf, call FromJSON to deserialize the data
+            if (typeof(Org.OpenAPITools.Models.AbstractOpenAPISchema).IsAssignableFrom(typeof(T)))
+            {
+                response.Data = (T) typeof(T).GetMethod("FromJson").Invoke(null, new object[] { response.Content });
+            }
+            else if (typeof(T).Name == "Stream") // for binary response
+            {
+                response.Data = (T)(object)new MemoryStream(response.RawBytes);
+            }
+
+            InterceptResponse(req, response);
+
+            var result = ToApiResponse(response);
+            if (response.ErrorMessage != null)
+            {
+                result.ErrorText = response.ErrorMessage;
+            }
+
+            if (response.Cookies != null && response.Cookies.Count > 0)
+            {
+                if (result.Cookies == null) result.Cookies = new List<Cookie>();
+                foreach (var restResponseCookie in response.Cookies)
+                {
+                    var cookie = new Cookie(
+                        restResponseCookie.Name,
+                        restResponseCookie.Value,
+                        restResponseCookie.Path,
+                        restResponseCookie.Domain
+                    )
+                    {
+                        Comment = restResponseCookie.Comment,
+                        CommentUri = restResponseCookie.CommentUri,
+                        Discard = restResponseCookie.Discard,
+                        Expired = restResponseCookie.Expired,
+                        Expires = restResponseCookie.Expires,
+                        HttpOnly = restResponseCookie.HttpOnly,
+                        Port = restResponseCookie.Port,
+                        Secure = restResponseCookie.Secure,
+                        Version = restResponseCookie.Version
+                    };
+
+                    result.Cookies.Add(cookie);
+                }
+            }
+            return result;
+        }
+
+        private async Task<ApiResponse<T>> ExecAsync<T>(RestRequest req, IReadableConfiguration configuration, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            RestClient client = new RestClient(_baseUrl);
+
+            client.ClearHandlers();
+            var existingDeserializer = req.JsonSerializer as IDeserializer;
+            if (existingDeserializer != null)
+            {
+                client.AddHandler("application/json", () => existingDeserializer);
+                client.AddHandler("text/json", () => existingDeserializer);
+                client.AddHandler("text/x-json", () => existingDeserializer);
+                client.AddHandler("text/javascript", () => existingDeserializer);
+                client.AddHandler("*+json", () => existingDeserializer);
+            }
+            else
+            {
+                var customDeserializer = new CustomJsonCodec(SerializerSettings, configuration);
+                client.AddHandler("application/json", () => customDeserializer);
+                client.AddHandler("text/json", () => customDeserializer);
+                client.AddHandler("text/x-json", () => customDeserializer);
+                client.AddHandler("text/javascript", () => customDeserializer);
+                client.AddHandler("*+json", () => customDeserializer);
+            }
+
+            var xmlDeserializer = new XmlDeserializer();
+            client.AddHandler("application/xml", () => xmlDeserializer);
+            client.AddHandler("text/xml", () => xmlDeserializer);
+            client.AddHandler("*+xml", () => xmlDeserializer);
+            client.AddHandler("*", () => xmlDeserializer);
+
+            client.Timeout = configuration.Timeout;
+
+            if (configuration.Proxy != null)
+            {
+                client.Proxy = configuration.Proxy;
+            }
+
+            if (configuration.UserAgent != null)
+            {
+                client.UserAgent = configuration.UserAgent;
+            }
+
+            if (configuration.ClientCertificates != null)
+            {
+                client.ClientCertificates = configuration.ClientCertificates;
+            }
+
+            InterceptRequest(req);
+
+            IRestResponse<T> response;
+            if (RetryConfiguration.AsyncRetryPolicy != null)
+            {
+                var policy = RetryConfiguration.AsyncRetryPolicy;
+                var policyResult = await policy.ExecuteAndCaptureAsync((ct) => client.ExecuteAsync(req, ct), cancellationToken).ConfigureAwait(false);
+                response = (policyResult.Outcome == OutcomeType.Successful) ? client.Deserialize<T>(policyResult.Result) : new RestResponse<T>
+                {
+                    Request = req,
+                    ErrorException = policyResult.FinalException
+                };
+            }
+            else
+            {
+                response = await client.ExecuteAsync<T>(req, cancellationToken).ConfigureAwait(false);
+            }
+
+            // if the response type is oneOf/anyOf, call FromJSON to deserialize the data
+            if (typeof(Org.OpenAPITools.Models.AbstractOpenAPISchema).IsAssignableFrom(typeof(T)))
+            {
+                response.Data = (T) typeof(T).GetMethod("FromJson").Invoke(null, new object[] { response.Content });
+            }
+            else if (typeof(T).Name == "Stream") // for binary response
+            {
+                response.Data = (T)(object)new MemoryStream(response.RawBytes);
+            }
+
+            InterceptResponse(req, response);
+
+            var result = ToApiResponse(response);
+            if (response.ErrorMessage != null)
+            {
+                result.ErrorText = response.ErrorMessage;
+            }
+
+            if (response.Cookies != null && response.Cookies.Count > 0)
+            {
+                if (result.Cookies == null) result.Cookies = new List<Cookie>();
+                foreach (var restResponseCookie in response.Cookies)
+                {
+                    var cookie = new Cookie(
+                        restResponseCookie.Name,
+                        restResponseCookie.Value,
+                        restResponseCookie.Path,
+                        restResponseCookie.Domain
+                    )
+                    {
+                        Comment = restResponseCookie.Comment,
+                        CommentUri = restResponseCookie.CommentUri,
+                        Discard = restResponseCookie.Discard,
+                        Expired = restResponseCookie.Expired,
+                        Expires = restResponseCookie.Expires,
+                        HttpOnly = restResponseCookie.HttpOnly,
+                        Port = restResponseCookie.Port,
+                        Secure = restResponseCookie.Secure,
+                        Version = restResponseCookie.Version
+                    };
+
+                    result.Cookies.Add(cookie);
+                }
+            }
+            return result;
+        }
+
+        #region IAsynchronousClient
+        /// <summary>
+        /// Make a HTTP GET request (async).
+        /// </summary>
+        /// <param name="path">The target path (or resource).</param>
+        /// <param name="options">The additional request options.</param>
+        /// <param name="configuration">A per-request configuration object. It is assumed that any merge with
+        /// GlobalConfiguration has been done before calling this method.</param>
+        /// <param name="cancellationToken">Token that enables callers to cancel the request.</param>
+        /// <returns>A Task containing ApiResponse</returns>
+        public Task<ApiResponse<T>> GetAsync<T>(string path, RequestOptions options, IReadableConfiguration configuration = null, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            var config = configuration ?? GlobalConfiguration.Instance;
+            return ExecAsync<T>(NewRequest(HttpMethod.Get, path, options, config), config, cancellationToken);
+        }
+
+        /// <summary>
+        /// Make a HTTP POST request (async).
+        /// </summary>
+        /// <param name="path">The target path (or resource).</param>
+        /// <param name="options">The additional request options.</param>
+        /// <param name="configuration">A per-request configuration object. It is assumed that any merge with
+        /// GlobalConfiguration has been done before calling this method.</param>
+        /// <param name="cancellationToken">Token that enables callers to cancel the request.</param>
+        /// <returns>A Task containing ApiResponse</returns>
+        public Task<ApiResponse<T>> PostAsync<T>(string path, RequestOptions options, IReadableConfiguration configuration = null, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            var config = configuration ?? GlobalConfiguration.Instance;
+            return ExecAsync<T>(NewRequest(HttpMethod.Post, path, options, config), config, cancellationToken);
+        }
+
+        /// <summary>
+        /// Make a HTTP PUT request (async).
+        /// </summary>
+        /// <param name="path">The target path (or resource).</param>
+        /// <param name="options">The additional request options.</param>
+        /// <param name="configuration">A per-request configuration object. It is assumed that any merge with
+        /// GlobalConfiguration has been done before calling this method.</param>
+        /// <param name="cancellationToken">Token that enables callers to cancel the request.</param>
+        /// <returns>A Task containing ApiResponse</returns>
+        public Task<ApiResponse<T>> PutAsync<T>(string path, RequestOptions options, IReadableConfiguration configuration = null, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            var config = configuration ?? GlobalConfiguration.Instance;
+            return ExecAsync<T>(NewRequest(HttpMethod.Put, path, options, config), config, cancellationToken);
+        }
+
+        /// <summary>
+        /// Make a HTTP DELETE request (async).
+        /// </summary>
+        /// <param name="path">The target path (or resource).</param>
+        /// <param name="options">The additional request options.</param>
+        /// <param name="configuration">A per-request configuration object. It is assumed that any merge with
+        /// GlobalConfiguration has been done before calling this method.</param>
+        /// <param name="cancellationToken">Token that enables callers to cancel the request.</param>
+        /// <returns>A Task containing ApiResponse</returns>
+        public Task<ApiResponse<T>> DeleteAsync<T>(string path, RequestOptions options, IReadableConfiguration configuration = null, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            var config = configuration ?? GlobalConfiguration.Instance;
+            return ExecAsync<T>(NewRequest(HttpMethod.Delete, path, options, config), config, cancellationToken);
+        }
+
+        /// <summary>
+        /// Make a HTTP HEAD request (async).
+        /// </summary>
+        /// <param name="path">The target path (or resource).</param>
+        /// <param name="options">The additional request options.</param>
+        /// <param name="configuration">A per-request configuration object. It is assumed that any merge with
+        /// GlobalConfiguration has been done before calling this method.</param>
+        /// <param name="cancellationToken">Token that enables callers to cancel the request.</param>
+        /// <returns>A Task containing ApiResponse</returns>
+        public Task<ApiResponse<T>> HeadAsync<T>(string path, RequestOptions options, IReadableConfiguration configuration = null, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            var config = configuration ?? GlobalConfiguration.Instance;
+            return ExecAsync<T>(NewRequest(HttpMethod.Head, path, options, config), config, cancellationToken);
+        }
+
+        /// <summary>
+        /// Make a HTTP OPTION request (async).
+        /// </summary>
+        /// <param name="path">The target path (or resource).</param>
+        /// <param name="options">The additional request options.</param>
+        /// <param name="configuration">A per-request configuration object. It is assumed that any merge with
+        /// GlobalConfiguration has been done before calling this method.</param>
+        /// <param name="cancellationToken">Token that enables callers to cancel the request.</param>
+        /// <returns>A Task containing ApiResponse</returns>
+        public Task<ApiResponse<T>> OptionsAsync<T>(string path, RequestOptions options, IReadableConfiguration configuration = null, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            var config = configuration ?? GlobalConfiguration.Instance;
+            return ExecAsync<T>(NewRequest(HttpMethod.Options, path, options, config), config, cancellationToken);
+        }
+
+        /// <summary>
+        /// Make a HTTP PATCH request (async).
+        /// </summary>
+        /// <param name="path">The target path (or resource).</param>
+        /// <param name="options">The additional request options.</param>
+        /// <param name="configuration">A per-request configuration object. It is assumed that any merge with
+        /// GlobalConfiguration has been done before calling this method.</param>
+        /// <param name="cancellationToken">Token that enables callers to cancel the request.</param>
+        /// <returns>A Task containing ApiResponse</returns>
+        public Task<ApiResponse<T>> PatchAsync<T>(string path, RequestOptions options, IReadableConfiguration configuration = null, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))
+        {
+            var config = configuration ?? GlobalConfiguration.Instance;
+            return ExecAsync<T>(NewRequest(HttpMethod.Patch, path, options, config), config, cancellationToken);
+        }
+        #endregion IAsynchronousClient
+
+        #region ISynchronousClient
+        /// <summary>
+        /// Make a HTTP GET request (synchronous).
+        /// </summary>
+        /// <param name="path">The target path (or resource).</param>
+        /// <param name="options">The additional request options.</param>
+        /// <param name="configuration">A per-request configuration object. It is assumed that any merge with
+        /// GlobalConfiguration has been done before calling this method.</param>
+        /// <returns>A Task containing ApiResponse</returns>
+        public ApiResponse<T> Get<T>(string path, RequestOptions options, IReadableConfiguration configuration = null)
+        {
+            var config = configuration ?? GlobalConfiguration.Instance;
+            return Exec<T>(NewRequest(HttpMethod.Get, path, options, config), config);
+        }
+
+        /// <summary>
+        /// Make a HTTP POST request (synchronous).
+        /// </summary>
+        /// <param name="path">The target path (or resource).</param>
+        /// <param name="options">The additional request options.</param>
+        /// <param name="configuration">A per-request configuration object. It is assumed that any merge with
+        /// GlobalConfiguration has been done before calling this method.</param>
+        /// <returns>A Task containing ApiResponse</returns>
+        public ApiResponse<T> Post<T>(string path, RequestOptions options, IReadableConfiguration configuration = null)
+        {
+            var config = configuration ?? GlobalConfiguration.Instance;
+            return Exec<T>(NewRequest(HttpMethod.Post, path, options, config), config);
+        }
+
+        /// <summary>
+        /// Make a HTTP PUT request (synchronous).
+        /// </summary>
+        /// <param name="path">The target path (or resource).</param>
+        /// <param name="options">The additional request options.</param>
+        /// <param name="configuration">A per-request configuration object. It is assumed that any merge with
+        /// GlobalConfiguration has been done before calling this method.</param>
+        /// <returns>A Task containing ApiResponse</returns>
+        public ApiResponse<T> Put<T>(string path, RequestOptions options, IReadableConfiguration configuration = null)
+        {
+            var config = configuration ?? GlobalConfiguration.Instance;
+            return Exec<T>(NewRequest(HttpMethod.Put, path, options, config), config);
+        }
+
+        /// <summary>
+        /// Make a HTTP DELETE request (synchronous).
+        /// </summary>
+        /// <param name="path">The target path (or resource).</param>
+        /// <param name="options">The additional request options.</param>
+        /// <param name="configuration">A per-request configuration object. It is assumed that any merge with
+        /// GlobalConfiguration has been done before calling this method.</param>
+        /// <returns>A Task containing ApiResponse</returns>
+        public ApiResponse<T> Delete<T>(string path, RequestOptions options, IReadableConfiguration configuration = null)
+        {
+            var config = configuration ?? GlobalConfiguration.Instance;
+            return Exec<T>(NewRequest(HttpMethod.Delete, path, options, config), config);
+        }
+
+        /// <summary>
+        /// Make a HTTP HEAD request (synchronous).
+        /// </summary>
+        /// <param name="path">The target path (or resource).</param>
+        /// <param name="options">The additional request options.</param>
+        /// <param name="configuration">A per-request configuration object. It is assumed that any merge with
+        /// GlobalConfiguration has been done before calling this method.</param>
+        /// <returns>A Task containing ApiResponse</returns>
+        public ApiResponse<T> Head<T>(string path, RequestOptions options, IReadableConfiguration configuration = null)
+        {
+            var config = configuration ?? GlobalConfiguration.Instance;
+            return Exec<T>(NewRequest(HttpMethod.Head, path, options, config), config);
+        }
+
+        /// <summary>
+        /// Make a HTTP OPTION request (synchronous).
+        /// </summary>
+        /// <param name="path">The target path (or resource).</param>
+        /// <param name="options">The additional request options.</param>
+        /// <param name="configuration">A per-request configuration object. It is assumed that any merge with
+        /// GlobalConfiguration has been done before calling this method.</param>
+        /// <returns>A Task containing ApiResponse</returns>
+        public ApiResponse<T> Options<T>(string path, RequestOptions options, IReadableConfiguration configuration = null)
+        {
+            var config = configuration ?? GlobalConfiguration.Instance;
+            return Exec<T>(NewRequest(HttpMethod.Options, path, options, config), config);
+        }
+
+        /// <summary>
+        /// Make a HTTP PATCH request (synchronous).
+        /// </summary>
+        /// <param name="path">The target path (or resource).</param>
+        /// <param name="options">The additional request options.</param>
+        /// <param name="configuration">A per-request configuration object. It is assumed that any merge with
+        /// GlobalConfiguration has been done before calling this method.</param>
+        /// <returns>A Task containing ApiResponse</returns>
+        public ApiResponse<T> Patch<T>(string path, RequestOptions options, IReadableConfiguration configuration = null)
+        {
+            var config = configuration ?? GlobalConfiguration.Instance;
+            return Exec<T>(NewRequest(HttpMethod.Patch, path, options, config), config);
+        }
+        #endregion ISynchronousClient
+    }
+}

samples/client/petstore/csharp-functions/generatedSrc/Client/ApiException.cs

@@ -0,0 +1,68 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+
+namespace Org.OpenAPITools.Client
+{
+    /// <summary>
+    /// API Exception
+    /// </summary>
+    public class ApiException : Exception
+    {
+        /// <summary>
+        /// Gets or sets the error code (HTTP status code)
+        /// </summary>
+        /// <value>The error code (HTTP status code).</value>
+        public int ErrorCode { get; set; }
+
+        /// <summary>
+        /// Gets or sets the error content (body json object)
+        /// </summary>
+        /// <value>The error content (Http response body).</value>
+        public object ErrorContent { get; private set; }
+
+        /// <summary>
+        /// Gets or sets the HTTP headers
+        /// </summary>
+        /// <value>HTTP headers</value>
+        public Multimap<string, string> Headers { get; private set; }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ApiException"/> class.
+        /// </summary>
+        public ApiException() { }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ApiException"/> class.
+        /// </summary>
+        /// <param name="errorCode">HTTP status code.</param>
+        /// <param name="message">Error message.</param>
+        public ApiException(int errorCode, string message) : base(message)
+        {
+            this.ErrorCode = errorCode;
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ApiException"/> class.
+        /// </summary>
+        /// <param name="errorCode">HTTP status code.</param>
+        /// <param name="message">Error message.</param>
+        /// <param name="errorContent">Error content.</param>
+        /// <param name="headers">HTTP Headers.</param>
+        public ApiException(int errorCode, string message, object errorContent = null, Multimap<string, string> headers = null) : base(message)
+        {
+            this.ErrorCode = errorCode;
+            this.ErrorContent = errorContent;
+            this.Headers = headers;
+        }
+    }
+
+}

samples/client/petstore/csharp-functions/generatedSrc/Client/ApiResponse.cs

@@ -0,0 +1,166 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections.Generic;
+using System.Net;
+
+namespace Org.OpenAPITools.Client
+{
+    /// <summary>
+    /// Provides a non-generic contract for the ApiResponse wrapper.
+    /// </summary>
+    public interface IApiResponse
+    {
+        /// <summary>
+        /// The data type of <see cref="Content"/>
+        /// </summary>
+        Type ResponseType { get; }
+
+        /// <summary>
+        /// The content of this response
+        /// </summary>
+        Object Content { get; }
+
+        /// <summary>
+        /// Gets or sets the status code (HTTP status code)
+        /// </summary>
+        /// <value>The status code.</value>
+        HttpStatusCode StatusCode { get; }
+
+        /// <summary>
+        /// Gets or sets the HTTP headers
+        /// </summary>
+        /// <value>HTTP headers</value>
+        Multimap<string, string> Headers { get; }
+
+        /// <summary>
+        /// Gets or sets any error text defined by the calling client.
+        /// </summary>
+        string ErrorText { get; set; }
+
+        /// <summary>
+        /// Gets or sets any cookies passed along on the response.
+        /// </summary>
+        List<Cookie> Cookies { get; set; }
+
+        /// <summary>
+        /// The raw content of this response
+        /// </summary>
+        string RawContent { get; }
+    }
+
+    /// <summary>
+    /// API Response
+    /// </summary>
+    public class ApiResponse<T> : IApiResponse
+    {
+        #region Properties
+
+        /// <summary>
+        /// Gets or sets the status code (HTTP status code)
+        /// </summary>
+        /// <value>The status code.</value>
+        public HttpStatusCode StatusCode { get; }
+
+        /// <summary>
+        /// Gets or sets the HTTP headers
+        /// </summary>
+        /// <value>HTTP headers</value>
+        public Multimap<string, string> Headers { get; }
+
+        /// <summary>
+        /// Gets or sets the data (parsed HTTP body)
+        /// </summary>
+        /// <value>The data.</value>
+        public T Data { get; }
+
+        /// <summary>
+        /// Gets or sets any error text defined by the calling client.
+        /// </summary>
+        public string ErrorText { get; set; }
+
+        /// <summary>
+        /// Gets or sets any cookies passed along on the response.
+        /// </summary>
+        public List<Cookie> Cookies { get; set; }
+
+        /// <summary>
+        /// The content of this response
+        /// </summary>
+        public Type ResponseType
+        {
+            get { return typeof(T); }
+        }
+
+        /// <summary>
+        /// The data type of <see cref="Content"/>
+        /// </summary>
+        public object Content
+        {
+            get { return Data; }
+        }
+
+        /// <summary>
+        /// The raw content
+        /// </summary>
+        public string RawContent { get; }
+
+        #endregion Properties
+
+        #region Constructors
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ApiResponse{T}" /> class.
+        /// </summary>
+        /// <param name="statusCode">HTTP status code.</param>
+        /// <param name="headers">HTTP headers.</param>
+        /// <param name="data">Data (parsed HTTP body)</param>
+        /// <param name="rawContent">Raw content.</param>
+        public ApiResponse(HttpStatusCode statusCode, Multimap<string, string> headers, T data, string rawContent)
+        {
+            StatusCode = statusCode;
+            Headers = headers;
+            Data = data;
+            RawContent = rawContent;
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ApiResponse{T}" /> class.
+        /// </summary>
+        /// <param name="statusCode">HTTP status code.</param>
+        /// <param name="headers">HTTP headers.</param>
+        /// <param name="data">Data (parsed HTTP body)</param>
+        public ApiResponse(HttpStatusCode statusCode, Multimap<string, string> headers, T data) : this(statusCode, headers, data, null)
+        {
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ApiResponse{T}" /> class.
+        /// </summary>
+        /// <param name="statusCode">HTTP status code.</param>
+        /// <param name="data">Data (parsed HTTP body)</param>
+        /// <param name="rawContent">Raw content.</param>
+        public ApiResponse(HttpStatusCode statusCode, T data, string rawContent) : this(statusCode, null, data, rawContent)
+        {
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ApiResponse{T}" /> class.
+        /// </summary>
+        /// <param name="statusCode">HTTP status code.</param>
+        /// <param name="data">Data (parsed HTTP body)</param>
+        public ApiResponse(HttpStatusCode statusCode, T data) : this(statusCode, data, null)
+        {
+        }
+
+        #endregion Constructors
+    }
+}

samples/client/petstore/csharp-functions/generatedSrc/Client/Configuration.cs

@@ -0,0 +1,515 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections.Concurrent;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Net;
+using System.Reflection;
+using System.Security.Cryptography.X509Certificates;
+using System.Text;
+
+namespace Org.OpenAPITools.Client
+{
+    /// <summary>
+    /// Represents a set of configuration settings
+    /// </summary>
+    public class Configuration : IReadableConfiguration
+    {
+        #region Constants
+
+        /// <summary>
+        /// Version of the package.
+        /// </summary>
+        /// <value>Version of the package.</value>
+        public const string Version = "1.0.0";
+
+        /// <summary>
+        /// Identifier for ISO 8601 DateTime Format
+        /// </summary>
+        /// <remarks>See https://msdn.microsoft.com/en-us/library/az4se3k1(v=vs.110).aspx#Anchor_8 for more information.</remarks>
+        // ReSharper disable once InconsistentNaming
+        public const string ISO8601_DATETIME_FORMAT = "o";
+
+        #endregion Constants
+
+        #region Static Members
+
+        /// <summary>
+        /// Default creation of exceptions for a given method name and response object
+        /// </summary>
+        public static readonly ExceptionFactory DefaultExceptionFactory = (methodName, response) =>
+        {
+            var status = (int)response.StatusCode;
+            if (status >= 400)
+            {
+                return new ApiException(status,
+                    string.Format("Error calling {0}: {1}", methodName, response.RawContent),
+                    response.RawContent, response.Headers);
+            }
+            return null;
+        };
+
+        #endregion Static Members
+
+        #region Private Members
+
+        /// <summary>
+        /// Defines the base path of the target API server.
+        /// Example: http://localhost:3000/v1/
+        /// </summary>
+        private string _basePath;
+
+        /// <summary>
+        /// Gets or sets the API key based on the authentication name.
+        /// This is the key and value comprising the "secret" for accessing an API.
+        /// </summary>
+        /// <value>The API key.</value>
+        private IDictionary<string, string> _apiKey;
+
+        /// <summary>
+        /// Gets or sets the prefix (e.g. Token) of the API key based on the authentication name.
+        /// </summary>
+        /// <value>The prefix of the API key.</value>
+        private IDictionary<string, string> _apiKeyPrefix;
+
+        private string _dateTimeFormat = ISO8601_DATETIME_FORMAT;
+        private string _tempFolderPath = Path.GetTempPath();
+
+        /// <summary>
+        /// Gets or sets the servers defined in the OpenAPI spec.
+        /// </summary>
+        /// <value>The servers</value>
+        private IList<IReadOnlyDictionary<string, object>> _servers;
+        #endregion Private Members
+
+        #region Constructors
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="Configuration" /> class
+        /// </summary>
+        [System.Diagnostics.CodeAnalysis.SuppressMessage("ReSharper", "VirtualMemberCallInConstructor")]
+        public Configuration()
+        {
+            Proxy = null;
+            UserAgent = "OpenAPI-Generator/1.0.0/csharp";
+            BasePath = "http://petstore.swagger.io/v2";
+            DefaultHeaders = new ConcurrentDictionary<string, string>();
+            ApiKey = new ConcurrentDictionary<string, string>();
+            ApiKeyPrefix = new ConcurrentDictionary<string, string>();
+            Servers = new List<IReadOnlyDictionary<string, object>>()
+            {
+                {
+                    new Dictionary<string, object> {
+                        {"url", "http://petstore.swagger.io/v2"},
+                        {"description", "No description provided"},
+                    }
+                }
+            };
+
+            // Setting Timeout has side effects (forces ApiClient creation).
+            Timeout = 100000;
+        }
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="Configuration" /> class
+        /// </summary>
+        [System.Diagnostics.CodeAnalysis.SuppressMessage("ReSharper", "VirtualMemberCallInConstructor")]
+        public Configuration(
+            IDictionary<string, string> defaultHeaders,
+            IDictionary<string, string> apiKey,
+            IDictionary<string, string> apiKeyPrefix,
+            string basePath = "http://petstore.swagger.io/v2") : this()
+        {
+            if (string.IsNullOrWhiteSpace(basePath))
+                throw new ArgumentException("The provided basePath is invalid.", "basePath");
+            if (defaultHeaders == null)
+                throw new ArgumentNullException("defaultHeaders");
+            if (apiKey == null)
+                throw new ArgumentNullException("apiKey");
+            if (apiKeyPrefix == null)
+                throw new ArgumentNullException("apiKeyPrefix");
+
+            BasePath = basePath;
+
+            foreach (var keyValuePair in defaultHeaders)
+            {
+                DefaultHeaders.Add(keyValuePair);
+            }
+
+            foreach (var keyValuePair in apiKey)
+            {
+                ApiKey.Add(keyValuePair);
+            }
+
+            foreach (var keyValuePair in apiKeyPrefix)
+            {
+                ApiKeyPrefix.Add(keyValuePair);
+            }
+        }
+
+        #endregion Constructors
+
+        #region Properties
+
+        /// <summary>
+        /// Gets or sets the base path for API access.
+        /// </summary>
+        public virtual string BasePath {
+            get { return _basePath; }
+            set { _basePath = value; }
+        }
+
+        /// <summary>
+        /// Gets or sets the default header.
+        /// </summary>
+        [Obsolete("Use DefaultHeaders instead.")]
+        public virtual IDictionary<string, string> DefaultHeader
+        {
+            get
+            {
+                return DefaultHeaders;
+            }
+            set
+            {
+                DefaultHeaders = value;
+            }
+        }
+
+        /// <summary>
+        /// Gets or sets the default headers.
+        /// </summary>
+        public virtual IDictionary<string, string> DefaultHeaders { get; set; }
+
+        /// <summary>
+        /// Gets or sets the HTTP timeout (milliseconds) of ApiClient. Default to 100000 milliseconds.
+        /// </summary>
+        public virtual int Timeout { get; set; }
+
+        /// <summary>
+        /// Gets or sets the proxy
+        /// </summary>
+        /// <value>Proxy.</value>
+        public virtual WebProxy Proxy { get; set; }
+
+        /// <summary>
+        /// Gets or sets the HTTP user agent.
+        /// </summary>
+        /// <value>Http user agent.</value>
+        public virtual string UserAgent { get; set; }
+
+        /// <summary>
+        /// Gets or sets the username (HTTP basic authentication).
+        /// </summary>
+        /// <value>The username.</value>
+        public virtual string Username { get; set; }
+
+        /// <summary>
+        /// Gets or sets the password (HTTP basic authentication).
+        /// </summary>
+        /// <value>The password.</value>
+        public virtual string Password { get; set; }
+
+        /// <summary>
+        /// Gets the API key with prefix.
+        /// </summary>
+        /// <param name="apiKeyIdentifier">API key identifier (authentication scheme).</param>
+        /// <returns>API key with prefix.</returns>
+        public string GetApiKeyWithPrefix(string apiKeyIdentifier)
+        {
+            string apiKeyValue;
+            ApiKey.TryGetValue(apiKeyIdentifier, out apiKeyValue);
+            string apiKeyPrefix;
+            if (ApiKeyPrefix.TryGetValue(apiKeyIdentifier, out apiKeyPrefix))
+            {
+                return apiKeyPrefix + " " + apiKeyValue;
+            }
+
+            return apiKeyValue;
+        }
+
+        /// <summary>
+        /// Gets or sets certificate collection to be sent with requests.
+        /// </summary>
+        /// <value>X509 Certificate collection.</value>
+        public X509CertificateCollection ClientCertificates { get; set; }
+
+        /// <summary>
+        /// Gets or sets the access token for OAuth2 authentication.
+        ///
+        /// This helper property simplifies code generation.
+        /// </summary>
+        /// <value>The access token.</value>
+        public virtual string AccessToken { get; set; }
+
+        /// <summary>
+        /// Gets or sets the temporary folder path to store the files downloaded from the server.
+        /// </summary>
+        /// <value>Folder path.</value>
+        public virtual string TempFolderPath
+        {
+            get { return _tempFolderPath; }
+
+            set
+            {
+                if (string.IsNullOrEmpty(value))
+                {
+                    _tempFolderPath = Path.GetTempPath();
+                    return;
+                }
+
+                // create the directory if it does not exist
+                if (!Directory.Exists(value))
+                {
+                    Directory.CreateDirectory(value);
+                }
+
+                // check if the path contains directory separator at the end
+                if (value[value.Length - 1] == Path.DirectorySeparatorChar)
+                {
+                    _tempFolderPath = value;
+                }
+                else
+                {
+                    _tempFolderPath = value + Path.DirectorySeparatorChar;
+                }
+            }
+        }
+
+        /// <summary>
+        /// Gets or sets the date time format used when serializing in the ApiClient
+        /// By default, it's set to ISO 8601 - "o", for others see:
+        /// https://msdn.microsoft.com/en-us/library/az4se3k1(v=vs.110).aspx
+        /// and https://msdn.microsoft.com/en-us/library/8kb3ddd4(v=vs.110).aspx
+        /// No validation is done to ensure that the string you're providing is valid
+        /// </summary>
+        /// <value>The DateTimeFormat string</value>
+        public virtual string DateTimeFormat
+        {
+            get { return _dateTimeFormat; }
+            set
+            {
+                if (string.IsNullOrEmpty(value))
+                {
+                    // Never allow a blank or null string, go back to the default
+                    _dateTimeFormat = ISO8601_DATETIME_FORMAT;
+                    return;
+                }
+
+                // Caution, no validation when you choose date time format other than ISO 8601
+                // Take a look at the above links
+                _dateTimeFormat = value;
+            }
+        }
+
+        /// <summary>
+        /// Gets or sets the prefix (e.g. Token) of the API key based on the authentication name.
+        ///
+        /// Whatever you set here will be prepended to the value defined in AddApiKey.
+        ///
+        /// An example invocation here might be:
+        /// <example>
+        /// ApiKeyPrefix["Authorization"] = "Bearer";
+        /// </example>
+        /// … where ApiKey["Authorization"] would then be used to set the value of your bearer token.
+        ///
+        /// <remarks>
+        /// OAuth2 workflows should set tokens via AccessToken.
+        /// </remarks>
+        /// </summary>
+        /// <value>The prefix of the API key.</value>
+        public virtual IDictionary<string, string> ApiKeyPrefix
+        {
+            get { return _apiKeyPrefix; }
+            set
+            {
+                if (value == null)
+                {
+                    throw new InvalidOperationException("ApiKeyPrefix collection may not be null.");
+                }
+                _apiKeyPrefix = value;
+            }
+        }
+
+        /// <summary>
+        /// Gets or sets the API key based on the authentication name.
+        /// </summary>
+        /// <value>The API key.</value>
+        public virtual IDictionary<string, string> ApiKey
+        {
+            get { return _apiKey; }
+            set
+            {
+                if (value == null)
+                {
+                    throw new InvalidOperationException("ApiKey collection may not be null.");
+                }
+                _apiKey = value;
+            }
+        }
+
+        /// <summary>
+        /// Gets or sets the servers.
+        /// </summary>
+        /// <value>The servers.</value>
+        public virtual IList<IReadOnlyDictionary<string, object>> Servers
+        {
+            get { return _servers; }
+            set
+            {
+                if (value == null)
+                {
+                    throw new InvalidOperationException("Servers may not be null.");
+                }
+                _servers = value;
+            }
+        }
+
+        /// <summary>
+        /// Returns URL based on server settings without providing values
+        /// for the variables
+        /// </summary>
+        /// <param name="index">Array index of the server settings.</param>
+        /// <return>The server URL.</return>
+        public string GetServerUrl(int index)
+        {
+            return GetServerUrl(index, null);
+        }
+
+        /// <summary>
+        /// Returns URL based on server settings.
+        /// </summary>
+        /// <param name="index">Array index of the server settings.</param>
+        /// <param name="inputVariables">Dictionary of the variables and the corresponding values.</param>
+        /// <return>The server URL.</return>
+        public string GetServerUrl(int index, Dictionary<string, string> inputVariables)
+        {
+            if (index < 0 || index >= Servers.Count)
+            {
+                throw new InvalidOperationException($"Invalid index {index} when selecting the server. Must be less than {Servers.Count}.");
+            }
+
+            if (inputVariables == null)
+            {
+                inputVariables = new Dictionary<string, string>();
+            }
+
+            IReadOnlyDictionary<string, object> server = Servers[index];
+            string url = (string)server["url"];
+
+            // go through variable and assign a value
+            foreach (KeyValuePair<string, object> variable in (IReadOnlyDictionary<string, object>)server["variables"])
+            {
+
+                IReadOnlyDictionary<string, object> serverVariables = (IReadOnlyDictionary<string, object>)(variable.Value);
+
+                if (inputVariables.ContainsKey(variable.Key))
+                {
+                    if (((List<string>)serverVariables["enum_values"]).Contains(inputVariables[variable.Key]))
+                    {
+                        url = url.Replace("{" + variable.Key + "}", inputVariables[variable.Key]);
+                    }
+                    else
+                    {
+                        throw new InvalidOperationException($"The variable `{variable.Key}` in the server URL has invalid value #{inputVariables[variable.Key]}. Must be {(List<string>)serverVariables["enum_values"]}");
+                    }
+                }
+                else
+                {
+                    // use default value
+                    url = url.Replace("{" + variable.Key + "}", (string)serverVariables["default_value"]);
+                }
+            }
+
+            return url;
+        }
+
+        #endregion Properties
+
+        #region Methods
+
+        /// <summary>
+        /// Returns a string with essential information for debugging.
+        /// </summary>
+        public static string ToDebugReport()
+        {
+            string report = "C# SDK (Org.OpenAPITools) Debug Report:\n";
+            report += "    OS: " + System.Environment.OSVersion + "\n";
+            report += "    .NET Framework Version: " + System.Environment.Version  + "\n";
+            report += "    Version of the API: 1.0.0\n";
+            report += "    SDK Package Version: 1.0.0\n";
+
+            return report;
+        }
+
+        /// <summary>
+        /// Add Api Key Header.
+        /// </summary>
+        /// <param name="key">Api Key name.</param>
+        /// <param name="value">Api Key value.</param>
+        /// <returns></returns>
+        public void AddApiKey(string key, string value)
+        {
+            ApiKey[key] = value;
+        }
+
+        /// <summary>
+        /// Sets the API key prefix.
+        /// </summary>
+        /// <param name="key">Api Key name.</param>
+        /// <param name="value">Api Key value.</param>
+        public void AddApiKeyPrefix(string key, string value)
+        {
+            ApiKeyPrefix[key] = value;
+        }
+
+        #endregion Methods
+
+        #region Static Members
+        /// <summary>
+        /// Merge configurations.
+        /// </summary>
+        /// <param name="first">First configuration.</param>
+        /// <param name="second">Second configuration.</param>
+        /// <return>Merged configuration.</return>
+        public static IReadableConfiguration MergeConfigurations(IReadableConfiguration first, IReadableConfiguration second)
+        {
+            if (second == null) return first ?? GlobalConfiguration.Instance;
+
+            Dictionary<string, string> apiKey = first.ApiKey.ToDictionary(kvp => kvp.Key, kvp => kvp.Value);
+            Dictionary<string, string> apiKeyPrefix = first.ApiKeyPrefix.ToDictionary(kvp => kvp.Key, kvp => kvp.Value);
+            Dictionary<string, string> defaultHeaders = first.DefaultHeaders.ToDictionary(kvp => kvp.Key, kvp => kvp.Value);
+
+            foreach (var kvp in second.ApiKey) apiKey[kvp.Key] = kvp.Value;
+            foreach (var kvp in second.ApiKeyPrefix) apiKeyPrefix[kvp.Key] = kvp.Value;
+            foreach (var kvp in second.DefaultHeaders) defaultHeaders[kvp.Key] = kvp.Value;
+
+            var config = new Configuration
+            {
+                ApiKey = apiKey,
+                ApiKeyPrefix = apiKeyPrefix,
+                DefaultHeaders = defaultHeaders,
+                BasePath = second.BasePath ?? first.BasePath,
+                Timeout = second.Timeout,
+                Proxy = second.Proxy ?? first.Proxy,
+                UserAgent = second.UserAgent ?? first.UserAgent,
+                Username = second.Username ?? first.Username,
+                Password = second.Password ?? first.Password,
+                AccessToken = second.AccessToken ?? first.AccessToken,
+                TempFolderPath = second.TempFolderPath ?? first.TempFolderPath,
+                DateTimeFormat = second.DateTimeFormat ?? first.DateTimeFormat
+            };
+            return config;
+        }
+        #endregion Static Members
+    }
+}

samples/client/petstore/csharp-functions/generatedSrc/Client/ExceptionFactory.cs

@@ -0,0 +1,22 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+
+namespace Org.OpenAPITools.Client
+{
+    /// <summary>
+    /// A delegate to ExceptionFactory method
+    /// </summary>
+    /// <param name="methodName">Method name</param>
+    /// <param name="response">Response</param>
+    /// <returns>Exceptions</returns>
+    public delegate Exception ExceptionFactory(string methodName, IApiResponse response);
+}

samples/client/petstore/csharp-functions/generatedSrc/Client/IApiAccessor.cs

@@ -0,0 +1,37 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+
+namespace Org.OpenAPITools.Client
+{
+    /// <summary>
+    /// Represents configuration aspects required to interact with the API endpoints.
+    /// </summary>
+    public interface IApiAccessor
+    {
+        /// <summary>
+        /// Gets or sets the configuration object
+        /// </summary>
+        /// <value>An instance of the Configuration</value>
+        IReadableConfiguration Configuration { get; set; }
+
+        /// <summary>
+        /// Gets the base path of the API client.
+        /// </summary>
+        /// <value>The base path</value>
+        string GetBasePath();
+
+        /// <summary>
+        /// Provides a factory method hook for the creation of exceptions.
+        /// </summary>
+        ExceptionFactory ExceptionFactory { get; set; }
+    }
+}

samples/client/petstore/csharp-functions/generatedSrc/Client/OpenAPIDateConverter.cs

@@ -0,0 +1,29 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+using Newtonsoft.Json.Converters;
+
+namespace Org.OpenAPITools.Client
+{
+    /// <summary>
+    /// Formatter for 'date' openapi formats ss defined by full-date - RFC3339
+    /// see https://github.com/OAI/OpenAPI-Specification/blob/master/versions/3.0.0.md#data-types
+    /// </summary>
+    public class OpenAPIDateConverter : IsoDateTimeConverter
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="OpenAPIDateConverter" /> class.
+        /// </summary>
+        public OpenAPIDateConverter()
+        {
+            // full-date   = date-fullyear "-" date-month "-" date-mday
+            DateTimeFormat = "yyyy-MM-dd";
+        }
+    }
+}

samples/client/petstore/csharp-functions/generatedSrc/Functions/PetApi.cs

@@ -0,0 +1,104 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Net;
+using System.Threading.Tasks;
+using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.Azure.WebJobs;
+using Microsoft.Azure.WebJobs.Extensions.Http;
+
+namespace Org.OpenAPITools.Apis
+{ 
+    public partial class PetApi
+    { 
+        [FunctionName("PetApi_AddPet")]
+        public async Task<IActionResult> _AddPet([HttpTrigger(AuthorizationLevel.Anonymous, "POST", Route = "/pet")]HttpRequest req, ExecutionContext context)
+        {
+            var method = this.GetType().GetMethod("AddPet");
+
+            return method != null 
+                ? (await ((Task<IActionResult>)method.Invoke(this, new object[] { req, context })).ConfigureAwait(false))
+                : new StatusCodeResult((int)HttpStatusCode.NotImplemented);
+        }
+
+        [FunctionName("PetApi_DeletePet")]
+        public async Task<IActionResult> _DeletePet([HttpTrigger(AuthorizationLevel.Anonymous, "DELETE", Route = "/pet/{petId}")]HttpRequest req, ExecutionContext context, long petId)
+        {
+            var method = this.GetType().GetMethod("DeletePet");
+
+            return method != null 
+                ? (await ((Task<IActionResult>)method.Invoke(this, new object[] { req, context,  })).ConfigureAwait(false))
+                : new StatusCodeResult((int)HttpStatusCode.NotImplemented);
+        }
+
+        [FunctionName("PetApi_FindPetsByStatus")]
+        public async Task<IActionResult> _FindPetsByStatus([HttpTrigger(AuthorizationLevel.Anonymous, "GET", Route = "/pet/findByStatus")]HttpRequest req, ExecutionContext context)
+        {
+            var method = this.GetType().GetMethod("FindPetsByStatus");
+
+            return method != null 
+                ? (await ((Task<IActionResult>)method.Invoke(this, new object[] { req, context })).ConfigureAwait(false))
+                : new StatusCodeResult((int)HttpStatusCode.NotImplemented);
+        }
+
+        [FunctionName("PetApi_FindPetsByTags")]
+        public async Task<IActionResult> _FindPetsByTags([HttpTrigger(AuthorizationLevel.Anonymous, "GET", Route = "/pet/findByTags")]HttpRequest req, ExecutionContext context)
+        {
+            var method = this.GetType().GetMethod("FindPetsByTags");
+
+            return method != null 
+                ? (await ((Task<IActionResult>)method.Invoke(this, new object[] { req, context })).ConfigureAwait(false))
+                : new StatusCodeResult((int)HttpStatusCode.NotImplemented);
+        }
+
+        [FunctionName("PetApi_GetPetById")]
+        public async Task<IActionResult> _GetPetById([HttpTrigger(AuthorizationLevel.Anonymous, "GET", Route = "/pet/{petId}")]HttpRequest req, ExecutionContext context, long petId)
+        {
+            var method = this.GetType().GetMethod("GetPetById");
+
+            return method != null 
+                ? (await ((Task<IActionResult>)method.Invoke(this, new object[] { req, context,  })).ConfigureAwait(false))
+                : new StatusCodeResult((int)HttpStatusCode.NotImplemented);
+        }
+
+        [FunctionName("PetApi_UpdatePet")]
+        public async Task<IActionResult> _UpdatePet([HttpTrigger(AuthorizationLevel.Anonymous, "PUT", Route = "/pet")]HttpRequest req, ExecutionContext context)
+        {
+            var method = this.GetType().GetMethod("UpdatePet");
+
+            return method != null 
+                ? (await ((Task<IActionResult>)method.Invoke(this, new object[] { req, context })).ConfigureAwait(false))
+                : new StatusCodeResult((int)HttpStatusCode.NotImplemented);
+        }
+
+        [FunctionName("PetApi_UpdatePetWithForm")]
+        public async Task<IActionResult> _UpdatePetWithForm([HttpTrigger(AuthorizationLevel.Anonymous, "POST", Route = "/pet/{petId}")]HttpRequest req, ExecutionContext context, long petId)
+        {
+            var method = this.GetType().GetMethod("UpdatePetWithForm");
+
+            return method != null 
+                ? (await ((Task<IActionResult>)method.Invoke(this, new object[] { req, context,  })).ConfigureAwait(false))
+                : new StatusCodeResult((int)HttpStatusCode.NotImplemented);
+        }
+
+        [FunctionName("PetApi_UploadFile")]
+        public async Task<IActionResult> _UploadFile([HttpTrigger(AuthorizationLevel.Anonymous, "POST", Route = "/pet/{petId}/uploadImage")]HttpRequest req, ExecutionContext context, long petId)
+        {
+            var method = this.GetType().GetMethod("UploadFile");
+
+            return method != null 
+                ? (await ((Task<IActionResult>)method.Invoke(this, new object[] { req, context,  })).ConfigureAwait(false))
+                : new StatusCodeResult((int)HttpStatusCode.NotImplemented);
+        }
+    }
+}
+

samples/client/petstore/csharp-functions/generatedSrc/Functions/StoreApi.cs

@@ -0,0 +1,64 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Net;
+using System.Threading.Tasks;
+using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.Azure.WebJobs;
+using Microsoft.Azure.WebJobs.Extensions.Http;
+
+namespace Org.OpenAPITools.Apis
+{ 
+    public partial class StoreApi
+    { 
+        [FunctionName("StoreApi_DeleteOrder")]
+        public async Task<IActionResult> _DeleteOrder([HttpTrigger(AuthorizationLevel.Anonymous, "DELETE", Route = "/store/order/{orderId}")]HttpRequest req, ExecutionContext context, string orderId)
+        {
+            var method = this.GetType().GetMethod("DeleteOrder");
+
+            return method != null 
+                ? (await ((Task<IActionResult>)method.Invoke(this, new object[] { req, context,  })).ConfigureAwait(false))
+                : new StatusCodeResult((int)HttpStatusCode.NotImplemented);
+        }
+
+        [FunctionName("StoreApi_GetInventory")]
+        public async Task<IActionResult> _GetInventory([HttpTrigger(AuthorizationLevel.Anonymous, "GET", Route = "/store/inventory")]HttpRequest req, ExecutionContext context)
+        {
+            var method = this.GetType().GetMethod("GetInventory");
+
+            return method != null 
+                ? (await ((Task<IActionResult>)method.Invoke(this, new object[] { req, context })).ConfigureAwait(false))
+                : new StatusCodeResult((int)HttpStatusCode.NotImplemented);
+        }
+
+        [FunctionName("StoreApi_GetOrderById")]
+        public async Task<IActionResult> _GetOrderById([HttpTrigger(AuthorizationLevel.Anonymous, "GET", Route = "/store/order/{orderId}")]HttpRequest req, ExecutionContext context, [Range(1, 5)]long orderId)
+        {
+            var method = this.GetType().GetMethod("GetOrderById");
+
+            return method != null 
+                ? (await ((Task<IActionResult>)method.Invoke(this, new object[] { req, context,  })).ConfigureAwait(false))
+                : new StatusCodeResult((int)HttpStatusCode.NotImplemented);
+        }
+
+        [FunctionName("StoreApi_PlaceOrder")]
+        public async Task<IActionResult> _PlaceOrder([HttpTrigger(AuthorizationLevel.Anonymous, "POST", Route = "/store/order")]HttpRequest req, ExecutionContext context)
+        {
+            var method = this.GetType().GetMethod("PlaceOrder");
+
+            return method != null 
+                ? (await ((Task<IActionResult>)method.Invoke(this, new object[] { req, context })).ConfigureAwait(false))
+                : new StatusCodeResult((int)HttpStatusCode.NotImplemented);
+        }
+    }
+}
+

samples/client/petstore/csharp-functions/generatedSrc/Functions/UserApi.cs

@@ -0,0 +1,104 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Net;
+using System.Threading.Tasks;
+using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.Azure.WebJobs;
+using Microsoft.Azure.WebJobs.Extensions.Http;
+
+namespace Org.OpenAPITools.Apis
+{ 
+    public partial class UserApi
+    { 
+        [FunctionName("UserApi_CreateUser")]
+        public async Task<IActionResult> _CreateUser([HttpTrigger(AuthorizationLevel.Anonymous, "POST", Route = "/user")]HttpRequest req, ExecutionContext context)
+        {
+            var method = this.GetType().GetMethod("CreateUser");
+
+            return method != null 
+                ? (await ((Task<IActionResult>)method.Invoke(this, new object[] { req, context })).ConfigureAwait(false))
+                : new StatusCodeResult((int)HttpStatusCode.NotImplemented);
+        }
+
+        [FunctionName("UserApi_CreateUsersWithArrayInput")]
+        public async Task<IActionResult> _CreateUsersWithArrayInput([HttpTrigger(AuthorizationLevel.Anonymous, "POST", Route = "/user/createWithArray")]HttpRequest req, ExecutionContext context)
+        {
+            var method = this.GetType().GetMethod("CreateUsersWithArrayInput");
+
+            return method != null 
+                ? (await ((Task<IActionResult>)method.Invoke(this, new object[] { req, context })).ConfigureAwait(false))
+                : new StatusCodeResult((int)HttpStatusCode.NotImplemented);
+        }
+
+        [FunctionName("UserApi_CreateUsersWithListInput")]
+        public async Task<IActionResult> _CreateUsersWithListInput([HttpTrigger(AuthorizationLevel.Anonymous, "POST", Route = "/user/createWithList")]HttpRequest req, ExecutionContext context)
+        {
+            var method = this.GetType().GetMethod("CreateUsersWithListInput");
+
+            return method != null 
+                ? (await ((Task<IActionResult>)method.Invoke(this, new object[] { req, context })).ConfigureAwait(false))
+                : new StatusCodeResult((int)HttpStatusCode.NotImplemented);
+        }
+
+        [FunctionName("UserApi_DeleteUser")]
+        public async Task<IActionResult> _DeleteUser([HttpTrigger(AuthorizationLevel.Anonymous, "DELETE", Route = "/user/{username}")]HttpRequest req, ExecutionContext context, string username)
+        {
+            var method = this.GetType().GetMethod("DeleteUser");
+
+            return method != null 
+                ? (await ((Task<IActionResult>)method.Invoke(this, new object[] { req, context,  })).ConfigureAwait(false))
+                : new StatusCodeResult((int)HttpStatusCode.NotImplemented);
+        }
+
+        [FunctionName("UserApi_GetUserByName")]
+        public async Task<IActionResult> _GetUserByName([HttpTrigger(AuthorizationLevel.Anonymous, "GET", Route = "/user/{username}")]HttpRequest req, ExecutionContext context, string username)
+        {
+            var method = this.GetType().GetMethod("GetUserByName");
+
+            return method != null 
+                ? (await ((Task<IActionResult>)method.Invoke(this, new object[] { req, context,  })).ConfigureAwait(false))
+                : new StatusCodeResult((int)HttpStatusCode.NotImplemented);
+        }
+
+        [FunctionName("UserApi_LoginUser")]
+        public async Task<IActionResult> _LoginUser([HttpTrigger(AuthorizationLevel.Anonymous, "GET", Route = "/user/login")]HttpRequest req, ExecutionContext context)
+        {
+            var method = this.GetType().GetMethod("LoginUser");
+
+            return method != null 
+                ? (await ((Task<IActionResult>)method.Invoke(this, new object[] { req, context })).ConfigureAwait(false))
+                : new StatusCodeResult((int)HttpStatusCode.NotImplemented);
+        }
+
+        [FunctionName("UserApi_LogoutUser")]
+        public async Task<IActionResult> _LogoutUser([HttpTrigger(AuthorizationLevel.Anonymous, "GET", Route = "/user/logout")]HttpRequest req, ExecutionContext context)
+        {
+            var method = this.GetType().GetMethod("LogoutUser");
+
+            return method != null 
+                ? (await ((Task<IActionResult>)method.Invoke(this, new object[] { req, context })).ConfigureAwait(false))
+                : new StatusCodeResult((int)HttpStatusCode.NotImplemented);
+        }
+
+        [FunctionName("UserApi_UpdateUser")]
+        public async Task<IActionResult> _UpdateUser([HttpTrigger(AuthorizationLevel.Anonymous, "PUT", Route = "/user/{username}")]HttpRequest req, ExecutionContext context, string username)
+        {
+            var method = this.GetType().GetMethod("UpdateUser");
+
+            return method != null 
+                ? (await ((Task<IActionResult>)method.Invoke(this, new object[] { req, context,  })).ConfigureAwait(false))
+                : new StatusCodeResult((int)HttpStatusCode.NotImplemented);
+        }
+    }
+}
+

samples/client/petstore/csharp-functions/generatedSrc/Models/ApiResponse.cs

@@ -0,0 +1,155 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+
+namespace Org.OpenAPITools.Models
+{
+    /// <summary>
+    /// Describes the result of uploading an image resource
+    /// </summary>
+    [DataContract(Name = "ApiResponse")]
+    public partial class ApiResponse : IEquatable<ApiResponse>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ApiResponse" /> class.
+        /// </summary>
+        /// <param name="code">code.</param>
+        /// <param name="type">type.</param>
+        /// <param name="message">message.</param>
+        public ApiResponse(int code = default(int), string type = default(string), string message = default(string))
+        {
+            this.Code = code;
+            this.Type = type;
+            this.Message = message;
+        }
+
+        /// <summary>
+        /// Gets or Sets Code
+        /// </summary>
+        [DataMember(Name = "code", EmitDefaultValue = false)]
+        public int Code { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Type
+        /// </summary>
+        [DataMember(Name = "type", EmitDefaultValue = false)]
+        public string Type { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Message
+        /// </summary>
+        [DataMember(Name = "message", EmitDefaultValue = false)]
+        public string Message { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            var sb = new StringBuilder();
+            sb.Append("class ApiResponse {\n");
+            sb.Append("  Code: ").Append(Code).Append("\n");
+            sb.Append("  Type: ").Append(Type).Append("\n");
+            sb.Append("  Message: ").Append(Message).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public virtual string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return this.Equals(input as ApiResponse);
+        }
+
+        /// <summary>
+        /// Returns true if ApiResponse instances are equal
+        /// </summary>
+        /// <param name="input">Instance of ApiResponse to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(ApiResponse input)
+        {
+            if (input == null)
+                return false;
+
+            return 
+                (
+                    this.Code == input.Code ||
+                    this.Code.Equals(input.Code)
+                ) && 
+                (
+                    this.Type == input.Type ||
+                    (this.Type != null &&
+                    this.Type.Equals(input.Type))
+                ) && 
+                (
+                    this.Message == input.Message ||
+                    (this.Message != null &&
+                    this.Message.Equals(input.Message))
+                );
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                hashCode = hashCode * 59 + this.Code.GetHashCode();
+                if (this.Type != null)
+                    hashCode = hashCode * 59 + this.Type.GetHashCode();
+                if (this.Message != null)
+                    hashCode = hashCode * 59 + this.Message.GetHashCode();
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+}

samples/client/petstore/csharp-functions/generatedSrc/Models/Category.cs

@@ -0,0 +1,146 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+
+namespace Org.OpenAPITools.Models
+{
+    /// <summary>
+    /// A category for a pet
+    /// </summary>
+    [DataContract(Name = "Category")]
+    public partial class Category : IEquatable<Category>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="Category" /> class.
+        /// </summary>
+        /// <param name="id">id.</param>
+        /// <param name="name">name.</param>
+        public Category(long id = default(long), string name = default(string))
+        {
+            this.Id = id;
+            this.Name = name;
+        }
+
+        /// <summary>
+        /// Gets or Sets Id
+        /// </summary>
+        [DataMember(Name = "id", EmitDefaultValue = false)]
+        public long Id { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Name
+        /// </summary>
+        [DataMember(Name = "name", EmitDefaultValue = false)]
+        public string Name { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            var sb = new StringBuilder();
+            sb.Append("class Category {\n");
+            sb.Append("  Id: ").Append(Id).Append("\n");
+            sb.Append("  Name: ").Append(Name).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public virtual string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return this.Equals(input as Category);
+        }
+
+        /// <summary>
+        /// Returns true if Category instances are equal
+        /// </summary>
+        /// <param name="input">Instance of Category to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(Category input)
+        {
+            if (input == null)
+                return false;
+
+            return 
+                (
+                    this.Id == input.Id ||
+                    this.Id.Equals(input.Id)
+                ) && 
+                (
+                    this.Name == input.Name ||
+                    (this.Name != null &&
+                    this.Name.Equals(input.Name))
+                );
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                hashCode = hashCode * 59 + this.Id.GetHashCode();
+                if (this.Name != null)
+                    hashCode = hashCode * 59 + this.Name.GetHashCode();
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            // Name (string) pattern
+            Regex regexName = new Regex(@"^[a-zA-Z0-9]+[a-zA-Z0-9\\.\\-_]*[a-zA-Z0-9]+$", RegexOptions.CultureInvariant);
+            if (false == regexName.Match(this.Name).Success)
+            {
+                yield return new System.ComponentModel.DataAnnotations.ValidationResult("Invalid value for Name, must match a pattern of " + regexName, new [] { "Name" });
+            }
+
+            yield break;
+        }
+    }
+
+}

samples/client/petstore/csharp-functions/generatedSrc/Models/Order.cs

@@ -0,0 +1,223 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+
+namespace Org.OpenAPITools.Models
+{
+    /// <summary>
+    /// An order for a pets from the pet store
+    /// </summary>
+    [DataContract(Name = "Order")]
+    public partial class Order : IEquatable<Order>, IValidatableObject
+    {
+        /// <summary>
+        /// Order Status
+        /// </summary>
+        /// <value>Order Status</value>
+        [JsonConverter(typeof(StringEnumConverter))]
+        public enum StatusEnum
+        {
+            /// <summary>
+            /// Enum Placed for value: placed
+            /// </summary>
+            [EnumMember(Value = "placed")]
+            Placed = 1,
+
+            /// <summary>
+            /// Enum Approved for value: approved
+            /// </summary>
+            [EnumMember(Value = "approved")]
+            Approved = 2,
+
+            /// <summary>
+            /// Enum Delivered for value: delivered
+            /// </summary>
+            [EnumMember(Value = "delivered")]
+            Delivered = 3
+
+        }
+
+
+        /// <summary>
+        /// Order Status
+        /// </summary>
+        /// <value>Order Status</value>
+        [DataMember(Name = "status", EmitDefaultValue = false)]
+        public StatusEnum? Status { get; set; }
+        /// <summary>
+        /// Initializes a new instance of the <see cref="Order" /> class.
+        /// </summary>
+        /// <param name="id">id.</param>
+        /// <param name="petId">petId.</param>
+        /// <param name="quantity">quantity.</param>
+        /// <param name="shipDate">shipDate.</param>
+        /// <param name="status">Order Status.</param>
+        /// <param name="complete">complete (default to false).</param>
+        public Order(long id = default(long), long petId = default(long), int quantity = default(int), DateTime shipDate = default(DateTime), StatusEnum? status = default(StatusEnum?), bool complete = false)
+        {
+            this.Id = id;
+            this.PetId = petId;
+            this.Quantity = quantity;
+            this.ShipDate = shipDate;
+            this.Status = status;
+            this.Complete = complete;
+        }
+
+        /// <summary>
+        /// Gets or Sets Id
+        /// </summary>
+        [DataMember(Name = "id", EmitDefaultValue = false)]
+        public long Id { get; set; }
+
+        /// <summary>
+        /// Gets or Sets PetId
+        /// </summary>
+        [DataMember(Name = "petId", EmitDefaultValue = false)]
+        public long PetId { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Quantity
+        /// </summary>
+        [DataMember(Name = "quantity", EmitDefaultValue = false)]
+        public int Quantity { get; set; }
+
+        /// <summary>
+        /// Gets or Sets ShipDate
+        /// </summary>
+        [DataMember(Name = "shipDate", EmitDefaultValue = false)]
+        public DateTime ShipDate { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Complete
+        /// </summary>
+        [DataMember(Name = "complete", EmitDefaultValue = true)]
+        public bool Complete { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            var sb = new StringBuilder();
+            sb.Append("class Order {\n");
+            sb.Append("  Id: ").Append(Id).Append("\n");
+            sb.Append("  PetId: ").Append(PetId).Append("\n");
+            sb.Append("  Quantity: ").Append(Quantity).Append("\n");
+            sb.Append("  ShipDate: ").Append(ShipDate).Append("\n");
+            sb.Append("  Status: ").Append(Status).Append("\n");
+            sb.Append("  Complete: ").Append(Complete).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public virtual string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return this.Equals(input as Order);
+        }
+
+        /// <summary>
+        /// Returns true if Order instances are equal
+        /// </summary>
+        /// <param name="input">Instance of Order to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(Order input)
+        {
+            if (input == null)
+                return false;
+
+            return 
+                (
+                    this.Id == input.Id ||
+                    this.Id.Equals(input.Id)
+                ) && 
+                (
+                    this.PetId == input.PetId ||
+                    this.PetId.Equals(input.PetId)
+                ) && 
+                (
+                    this.Quantity == input.Quantity ||
+                    this.Quantity.Equals(input.Quantity)
+                ) && 
+                (
+                    this.ShipDate == input.ShipDate ||
+                    (this.ShipDate != null &&
+                    this.ShipDate.Equals(input.ShipDate))
+                ) && 
+                (
+                    this.Status == input.Status ||
+                    this.Status.Equals(input.Status)
+                ) && 
+                (
+                    this.Complete == input.Complete ||
+                    this.Complete.Equals(input.Complete)
+                );
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                hashCode = hashCode * 59 + this.Id.GetHashCode();
+                hashCode = hashCode * 59 + this.PetId.GetHashCode();
+                hashCode = hashCode * 59 + this.Quantity.GetHashCode();
+                if (this.ShipDate != null)
+                    hashCode = hashCode * 59 + this.ShipDate.GetHashCode();
+                hashCode = hashCode * 59 + this.Status.GetHashCode();
+                hashCode = hashCode * 59 + this.Complete.GetHashCode();
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+}

samples/client/petstore/csharp-functions/generatedSrc/Models/Pet.cs

@@ -0,0 +1,238 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+
+namespace Org.OpenAPITools.Models
+{
+    /// <summary>
+    /// A pet for sale in the pet store
+    /// </summary>
+    [DataContract(Name = "Pet")]
+    public partial class Pet : IEquatable<Pet>, IValidatableObject
+    {
+        /// <summary>
+        /// pet status in the store
+        /// </summary>
+        /// <value>pet status in the store</value>
+        [JsonConverter(typeof(StringEnumConverter))]
+        public enum StatusEnum
+        {
+            /// <summary>
+            /// Enum Available for value: available
+            /// </summary>
+            [EnumMember(Value = "available")]
+            Available = 1,
+
+            /// <summary>
+            /// Enum Pending for value: pending
+            /// </summary>
+            [EnumMember(Value = "pending")]
+            Pending = 2,
+
+            /// <summary>
+            /// Enum Sold for value: sold
+            /// </summary>
+            [EnumMember(Value = "sold")]
+            Sold = 3
+
+        }
+
+
+        /// <summary>
+        /// pet status in the store
+        /// </summary>
+        /// <value>pet status in the store</value>
+        [DataMember(Name = "status", EmitDefaultValue = false)]
+        public StatusEnum? Status { get; set; }
+        /// <summary>
+        /// Initializes a new instance of the <see cref="Pet" /> class.
+        /// </summary>
+        [JsonConstructorAttribute]
+        protected Pet() { }
+        /// <summary>
+        /// Initializes a new instance of the <see cref="Pet" /> class.
+        /// </summary>
+        /// <param name="id">id.</param>
+        /// <param name="category">category.</param>
+        /// <param name="name">name (required).</param>
+        /// <param name="photoUrls">photoUrls (required).</param>
+        /// <param name="tags">tags.</param>
+        /// <param name="status">pet status in the store.</param>
+        public Pet(long id = default(long), Category category = default(Category), string name = default(string), List<string> photoUrls = default(List<string>), List<Tag> tags = default(List<Tag>), StatusEnum? status = default(StatusEnum?))
+        {
+            // to ensure "name" is required (not null)
+            this.Name = name ?? throw new ArgumentNullException("name is a required property for Pet and cannot be null");
+            // to ensure "photoUrls" is required (not null)
+            this.PhotoUrls = photoUrls ?? throw new ArgumentNullException("photoUrls is a required property for Pet and cannot be null");
+            this.Id = id;
+            this.Category = category;
+            this.Tags = tags;
+            this.Status = status;
+        }
+
+        /// <summary>
+        /// Gets or Sets Id
+        /// </summary>
+        [DataMember(Name = "id", EmitDefaultValue = false)]
+        public long Id { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Category
+        /// </summary>
+        [DataMember(Name = "category", EmitDefaultValue = false)]
+        public Category Category { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Name
+        /// </summary>
+        [DataMember(Name = "name", IsRequired = true, EmitDefaultValue = false)]
+        public string Name { get; set; }
+
+        /// <summary>
+        /// Gets or Sets PhotoUrls
+        /// </summary>
+        [DataMember(Name = "photoUrls", IsRequired = true, EmitDefaultValue = false)]
+        public List<string> PhotoUrls { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Tags
+        /// </summary>
+        [DataMember(Name = "tags", EmitDefaultValue = false)]
+        public List<Tag> Tags { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            var sb = new StringBuilder();
+            sb.Append("class Pet {\n");
+            sb.Append("  Id: ").Append(Id).Append("\n");
+            sb.Append("  Category: ").Append(Category).Append("\n");
+            sb.Append("  Name: ").Append(Name).Append("\n");
+            sb.Append("  PhotoUrls: ").Append(PhotoUrls).Append("\n");
+            sb.Append("  Tags: ").Append(Tags).Append("\n");
+            sb.Append("  Status: ").Append(Status).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public virtual string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return this.Equals(input as Pet);
+        }
+
+        /// <summary>
+        /// Returns true if Pet instances are equal
+        /// </summary>
+        /// <param name="input">Instance of Pet to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(Pet input)
+        {
+            if (input == null)
+                return false;
+
+            return 
+                (
+                    this.Id == input.Id ||
+                    this.Id.Equals(input.Id)
+                ) && 
+                (
+                    this.Category == input.Category ||
+                    (this.Category != null &&
+                    this.Category.Equals(input.Category))
+                ) && 
+                (
+                    this.Name == input.Name ||
+                    (this.Name != null &&
+                    this.Name.Equals(input.Name))
+                ) && 
+                (
+                    this.PhotoUrls == input.PhotoUrls ||
+                    this.PhotoUrls != null &&
+                    input.PhotoUrls != null &&
+                    this.PhotoUrls.SequenceEqual(input.PhotoUrls)
+                ) && 
+                (
+                    this.Tags == input.Tags ||
+                    this.Tags != null &&
+                    input.Tags != null &&
+                    this.Tags.SequenceEqual(input.Tags)
+                ) && 
+                (
+                    this.Status == input.Status ||
+                    this.Status.Equals(input.Status)
+                );
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                hashCode = hashCode * 59 + this.Id.GetHashCode();
+                if (this.Category != null)
+                    hashCode = hashCode * 59 + this.Category.GetHashCode();
+                if (this.Name != null)
+                    hashCode = hashCode * 59 + this.Name.GetHashCode();
+                if (this.PhotoUrls != null)
+                    hashCode = hashCode * 59 + this.PhotoUrls.GetHashCode();
+                if (this.Tags != null)
+                    hashCode = hashCode * 59 + this.Tags.GetHashCode();
+                hashCode = hashCode * 59 + this.Status.GetHashCode();
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+}

samples/client/petstore/csharp-functions/generatedSrc/Models/Tag.cs

@@ -0,0 +1,139 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+
+namespace Org.OpenAPITools.Models
+{
+    /// <summary>
+    /// A tag for a pet
+    /// </summary>
+    [DataContract(Name = "Tag")]
+    public partial class Tag : IEquatable<Tag>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="Tag" /> class.
+        /// </summary>
+        /// <param name="id">id.</param>
+        /// <param name="name">name.</param>
+        public Tag(long id = default(long), string name = default(string))
+        {
+            this.Id = id;
+            this.Name = name;
+        }
+
+        /// <summary>
+        /// Gets or Sets Id
+        /// </summary>
+        [DataMember(Name = "id", EmitDefaultValue = false)]
+        public long Id { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Name
+        /// </summary>
+        [DataMember(Name = "name", EmitDefaultValue = false)]
+        public string Name { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            var sb = new StringBuilder();
+            sb.Append("class Tag {\n");
+            sb.Append("  Id: ").Append(Id).Append("\n");
+            sb.Append("  Name: ").Append(Name).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public virtual string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return this.Equals(input as Tag);
+        }
+
+        /// <summary>
+        /// Returns true if Tag instances are equal
+        /// </summary>
+        /// <param name="input">Instance of Tag to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(Tag input)
+        {
+            if (input == null)
+                return false;
+
+            return 
+                (
+                    this.Id == input.Id ||
+                    this.Id.Equals(input.Id)
+                ) && 
+                (
+                    this.Name == input.Name ||
+                    (this.Name != null &&
+                    this.Name.Equals(input.Name))
+                );
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                hashCode = hashCode * 59 + this.Id.GetHashCode();
+                if (this.Name != null)
+                    hashCode = hashCode * 59 + this.Name.GetHashCode();
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+}

samples/client/petstore/csharp-functions/generatedSrc/Models/User.cs

@@ -0,0 +1,234 @@
+/*
+ * OpenAPI Petstore
+ *
+ * This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * Generated by: https://github.com/openapitools/openapi-generator.git
+ */
+
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Linq;
+using System.IO;
+using System.Runtime.Serialization;
+using System.Text;
+using System.Text.RegularExpressions;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using Newtonsoft.Json.Linq;
+using System.ComponentModel.DataAnnotations;
+using OpenAPIDateConverter = Org.OpenAPITools.Client.OpenAPIDateConverter;
+
+namespace Org.OpenAPITools.Models
+{
+    /// <summary>
+    /// A User who is purchasing from the pet store
+    /// </summary>
+    [DataContract(Name = "User")]
+    public partial class User : IEquatable<User>, IValidatableObject
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="User" /> class.
+        /// </summary>
+        /// <param name="id">id.</param>
+        /// <param name="username">username.</param>
+        /// <param name="firstName">firstName.</param>
+        /// <param name="lastName">lastName.</param>
+        /// <param name="email">email.</param>
+        /// <param name="password">password.</param>
+        /// <param name="phone">phone.</param>
+        /// <param name="userStatus">User Status.</param>
+        public User(long id = default(long), string username = default(string), string firstName = default(string), string lastName = default(string), string email = default(string), string password = default(string), string phone = default(string), int userStatus = default(int))
+        {
+            this.Id = id;
+            this.Username = username;
+            this.FirstName = firstName;
+            this.LastName = lastName;
+            this.Email = email;
+            this.Password = password;
+            this.Phone = phone;
+            this.UserStatus = userStatus;
+        }
+
+        /// <summary>
+        /// Gets or Sets Id
+        /// </summary>
+        [DataMember(Name = "id", EmitDefaultValue = false)]
+        public long Id { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Username
+        /// </summary>
+        [DataMember(Name = "username", EmitDefaultValue = false)]
+        public string Username { get; set; }
+
+        /// <summary>
+        /// Gets or Sets FirstName
+        /// </summary>
+        [DataMember(Name = "firstName", EmitDefaultValue = false)]
+        public string FirstName { get; set; }
+
+        /// <summary>
+        /// Gets or Sets LastName
+        /// </summary>
+        [DataMember(Name = "lastName", EmitDefaultValue = false)]
+        public string LastName { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Email
+        /// </summary>
+        [DataMember(Name = "email", EmitDefaultValue = false)]
+        public string Email { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Password
+        /// </summary>
+        [DataMember(Name = "password", EmitDefaultValue = false)]
+        public string Password { get; set; }
+
+        /// <summary>
+        /// Gets or Sets Phone
+        /// </summary>
+        [DataMember(Name = "phone", EmitDefaultValue = false)]
+        public string Phone { get; set; }
+
+        /// <summary>
+        /// User Status
+        /// </summary>
+        /// <value>User Status</value>
+        [DataMember(Name = "userStatus", EmitDefaultValue = false)]
+        public int UserStatus { get; set; }
+
+        /// <summary>
+        /// Returns the string presentation of the object
+        /// </summary>
+        /// <returns>String presentation of the object</returns>
+        public override string ToString()
+        {
+            var sb = new StringBuilder();
+            sb.Append("class User {\n");
+            sb.Append("  Id: ").Append(Id).Append("\n");
+            sb.Append("  Username: ").Append(Username).Append("\n");
+            sb.Append("  FirstName: ").Append(FirstName).Append("\n");
+            sb.Append("  LastName: ").Append(LastName).Append("\n");
+            sb.Append("  Email: ").Append(Email).Append("\n");
+            sb.Append("  Password: ").Append(Password).Append("\n");
+            sb.Append("  Phone: ").Append(Phone).Append("\n");
+            sb.Append("  UserStatus: ").Append(UserStatus).Append("\n");
+            sb.Append("}\n");
+            return sb.ToString();
+        }
+
+        /// <summary>
+        /// Returns the JSON string presentation of the object
+        /// </summary>
+        /// <returns>JSON string presentation of the object</returns>
+        public virtual string ToJson()
+        {
+            return Newtonsoft.Json.JsonConvert.SerializeObject(this, Newtonsoft.Json.Formatting.Indented);
+        }
+
+        /// <summary>
+        /// Returns true if objects are equal
+        /// </summary>
+        /// <param name="input">Object to be compared</param>
+        /// <returns>Boolean</returns>
+        public override bool Equals(object input)
+        {
+            return this.Equals(input as User);
+        }
+
+        /// <summary>
+        /// Returns true if User instances are equal
+        /// </summary>
+        /// <param name="input">Instance of User to be compared</param>
+        /// <returns>Boolean</returns>
+        public bool Equals(User input)
+        {
+            if (input == null)
+                return false;
+
+            return 
+                (
+                    this.Id == input.Id ||
+                    this.Id.Equals(input.Id)
+                ) && 
+                (
+                    this.Username == input.Username ||
+                    (this.Username != null &&
+                    this.Username.Equals(input.Username))
+                ) && 
+                (
+                    this.FirstName == input.FirstName ||
+                    (this.FirstName != null &&
+                    this.FirstName.Equals(input.FirstName))
+                ) && 
+                (
+                    this.LastName == input.LastName ||
+                    (this.LastName != null &&
+                    this.LastName.Equals(input.LastName))
+                ) && 
+                (
+                    this.Email == input.Email ||
+                    (this.Email != null &&
+                    this.Email.Equals(input.Email))
+                ) && 
+                (
+                    this.Password == input.Password ||
+                    (this.Password != null &&
+                    this.Password.Equals(input.Password))
+                ) && 
+                (
+                    this.Phone == input.Phone ||
+                    (this.Phone != null &&
+                    this.Phone.Equals(input.Phone))
+                ) && 
+                (
+                    this.UserStatus == input.UserStatus ||
+                    this.UserStatus.Equals(input.UserStatus)
+                );
+        }
+
+        /// <summary>
+        /// Gets the hash code
+        /// </summary>
+        /// <returns>Hash code</returns>
+        public override int GetHashCode()
+        {
+            unchecked // Overflow is fine, just wrap
+            {
+                int hashCode = 41;
+                hashCode = hashCode * 59 + this.Id.GetHashCode();
+                if (this.Username != null)
+                    hashCode = hashCode * 59 + this.Username.GetHashCode();
+                if (this.FirstName != null)
+                    hashCode = hashCode * 59 + this.FirstName.GetHashCode();
+                if (this.LastName != null)
+                    hashCode = hashCode * 59 + this.LastName.GetHashCode();
+                if (this.Email != null)
+                    hashCode = hashCode * 59 + this.Email.GetHashCode();
+                if (this.Password != null)
+                    hashCode = hashCode * 59 + this.Password.GetHashCode();
+                if (this.Phone != null)
+                    hashCode = hashCode * 59 + this.Phone.GetHashCode();
+                hashCode = hashCode * 59 + this.UserStatus.GetHashCode();
+                return hashCode;
+            }
+        }
+
+        /// <summary>
+        /// To validate all properties of the instance
+        /// </summary>
+        /// <param name="validationContext">Validation context</param>
+        /// <returns>Validation Result</returns>
+        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        {
+            yield break;
+        }
+    }
+
+}

samples/client/petstore/csharp-functions/generatedSrc/README.md

@@ -0,0 +1,159 @@
+# Org.OpenAPITools - the C# library for the OpenAPI Petstore
+
+This is a sample server Petstore server. For this sample, you can use the api key `special-key` to test the authorization filters.
+
+This C# SDK is automatically generated by the [OpenAPI Generator](https://openapi-generator.tech) project:
+
+- API version: 1.0.0
+- SDK version: 1.0.0
+- Build package: org.openapitools.codegen.languages.CSharpFunctionsServerCodegen
+
+<a name="frameworks-supported"></a>
+## Frameworks supported
+- .NET Core >=1.0
+- .NET Framework >=4.6
+- Mono/Xamarin >=vNext
+
+<a name="dependencies"></a>
+## Dependencies
+
+- [RestSharp](https://www.nuget.org/packages/RestSharp) - 106.11.7 or later
+- [Json.NET](https://www.nuget.org/packages/Newtonsoft.Json/) - 12.0.3 or later
+- [JsonSubTypes](https://www.nuget.org/packages/JsonSubTypes/) - 1.8.0 or later
+- [System.ComponentModel.Annotations](https://www.nuget.org/packages/System.ComponentModel.Annotations) - 5.0.0 or later
+
+The DLLs included in the package may not be the latest version. We recommend using [NuGet](https://docs.nuget.org/consume/installing-nuget) to obtain the latest version of the packages:
+```
+Install-Package RestSharp
+Install-Package Newtonsoft.Json
+Install-Package JsonSubTypes
+Install-Package System.ComponentModel.Annotations
+```
+
+NOTE: RestSharp versions greater than 105.1.0 have a bug which causes file uploads to fail. See [RestSharp#742](https://github.com/restsharp/RestSharp/issues/742).
+NOTE: RestSharp for .Net Core creates a new socket for each api call, which can lead to a socket exhaustion problem. See [RestSharp#1406](https://github.com/restsharp/RestSharp/issues/1406).
+
+<a name="installation"></a>
+## Installation
+Generate the DLL using your preferred tool (e.g. `dotnet build`)
+
+Then include the DLL (under the `bin` folder) in the C# project, and use the namespaces:
+```csharp
+using Org.OpenAPITools.Apis;
+using Org.OpenAPITools.Client;
+using Org.OpenAPITools.Models;
+```
+<a name="usage"></a>
+## Usage
+
+To use the API client with a HTTP proxy, setup a `System.Net.WebProxy`
+```csharp
+Configuration c = new Configuration();
+System.Net.WebProxy webProxy = new System.Net.WebProxy("http://myProxyUrl:80/");
+webProxy.Credentials = System.Net.CredentialCache.DefaultCredentials;
+c.Proxy = webProxy;
+```
+
+<a name="getting-started"></a>
+## Getting Started
+
+```csharp
+using System.Collections.Generic;
+using System.Diagnostics;
+using Org.OpenAPITools.Apis;
+using Org.OpenAPITools.Client;
+using Org.OpenAPITools.Models;
+
+namespace Example
+{
+    public class Example
+    {
+        public static void Main()
+        {
+
+            Configuration config = new Configuration();
+            config.BasePath = "http://petstore.swagger.io/v2";
+            // Configure OAuth2 access token for authorization: petstore_auth
+            config.AccessToken = "YOUR_ACCESS_TOKEN";
+
+            var apiInstance = new PetApi(config);
+            var pet = new Pet(); // Pet | Pet object that needs to be added to the store
+
+            try
+            {
+                // Add a new pet to the store
+                Pet result = apiInstance.AddPet(pet);
+                Debug.WriteLine(result);
+            }
+            catch (ApiException e)
+            {
+                Debug.Print("Exception when calling PetApi.AddPet: " + e.Message );
+                Debug.Print("Status Code: "+ e.ErrorCode);
+                Debug.Print(e.StackTrace);
+            }
+
+        }
+    }
+}
+```
+
+<a name="documentation-for-api-endpoints"></a>
+## Documentation for API Endpoints
+
+All URIs are relative to *http://petstore.swagger.io/v2*
+
+Class | Method | HTTP request | Description
+------------ | ------------- | ------------- | -------------
+*PetApi* | [**AddPet**](docs/PetApi.md#addpet) | **POST** /pet | Add a new pet to the store
+*PetApi* | [**DeletePet**](docs/PetApi.md#deletepet) | **DELETE** /pet/{petId} | Deletes a pet
+*PetApi* | [**FindPetsByStatus**](docs/PetApi.md#findpetsbystatus) | **GET** /pet/findByStatus | Finds Pets by status
+*PetApi* | [**FindPetsByTags**](docs/PetApi.md#findpetsbytags) | **GET** /pet/findByTags | Finds Pets by tags
+*PetApi* | [**GetPetById**](docs/PetApi.md#getpetbyid) | **GET** /pet/{petId} | Find pet by ID
+*PetApi* | [**UpdatePet**](docs/PetApi.md#updatepet) | **PUT** /pet | Update an existing pet
+*PetApi* | [**UpdatePetWithForm**](docs/PetApi.md#updatepetwithform) | **POST** /pet/{petId} | Updates a pet in the store with form data
+*PetApi* | [**UploadFile**](docs/PetApi.md#uploadfile) | **POST** /pet/{petId}/uploadImage | uploads an image
+*StoreApi* | [**DeleteOrder**](docs/StoreApi.md#deleteorder) | **DELETE** /store/order/{orderId} | Delete purchase order by ID
+*StoreApi* | [**GetInventory**](docs/StoreApi.md#getinventory) | **GET** /store/inventory | Returns pet inventories by status
+*StoreApi* | [**GetOrderById**](docs/StoreApi.md#getorderbyid) | **GET** /store/order/{orderId} | Find purchase order by ID
+*StoreApi* | [**PlaceOrder**](docs/StoreApi.md#placeorder) | **POST** /store/order | Place an order for a pet
+*UserApi* | [**CreateUser**](docs/UserApi.md#createuser) | **POST** /user | Create user
+*UserApi* | [**CreateUsersWithArrayInput**](docs/UserApi.md#createuserswitharrayinput) | **POST** /user/createWithArray | Creates list of users with given input array
+*UserApi* | [**CreateUsersWithListInput**](docs/UserApi.md#createuserswithlistinput) | **POST** /user/createWithList | Creates list of users with given input array
+*UserApi* | [**DeleteUser**](docs/UserApi.md#deleteuser) | **DELETE** /user/{username} | Delete user
+*UserApi* | [**GetUserByName**](docs/UserApi.md#getuserbyname) | **GET** /user/{username} | Get user by user name
+*UserApi* | [**LoginUser**](docs/UserApi.md#loginuser) | **GET** /user/login | Logs user into the system
+*UserApi* | [**LogoutUser**](docs/UserApi.md#logoutuser) | **GET** /user/logout | Logs out current logged in user session
+*UserApi* | [**UpdateUser**](docs/UserApi.md#updateuser) | **PUT** /user/{username} | Updated user
+
+
+<a name="documentation-for-models"></a>
+## Documentation for Models
+
+ - [Models.ApiResponse](docs/ApiResponse.md)
+ - [Models.Category](docs/Category.md)
+ - [Models.Order](docs/Order.md)
+ - [Models.Pet](docs/Pet.md)
+ - [Models.Tag](docs/Tag.md)
+ - [Models.User](docs/User.md)
+
+
+<a name="documentation-for-authorization"></a>
+## Documentation for Authorization
+
+<a name="api_key"></a>
+### api_key
+
+- **Type**: API key
+- **API key parameter name**: api_key
+- **Location**: HTTP header
+
+<a name="petstore_auth"></a>
+### petstore_auth
+
+- **Type**: OAuth
+- **Flow**: implicit
+- **Authorization URL**: http://petstore.swagger.io/api/oauth/dialog
+- **Scopes**: 
+  - write:pets: modify pets in your account
+  - read:pets: read your pets
+

samples/client/petstore/csharp-functions/generatedSrc/project.json

@@ -0,0 +1,12 @@
+{
+    "supports": {},
+    "dependencies": {
+        "FubarCoder.RestSharp.Portable.Core": "4.0.7",
+        "FubarCoder.RestSharp.Portable.HttpClient": "4.0.7",
+        "Newtonsoft.Json": "10.0.3",
+        "JsonSubTypes": "1.2.0"
+    },
+    "frameworks": {
+        "netstandard1.3": {}
+    }
+}