openapi-generator/modules/swagger-codegen/src/main/resources/csharp/api.mustache

using System;
using System.Collections.Generic;
using System.Threading.Tasks;
using RestSharp;
using {{invokerPackage}};
using {{modelPackage}};
{{#imports}}
{{/imports}}

namespace {{package}} {
  {{#operations}}

  public interface I{{classname}} {
    {{#operation}}
    {{#returnType}}{{{returnType}}}{{/returnType}}{{^returnType}}void{{/returnType}} {{nickname}} ({{#allParams}}{{{dataType}}} {{paramName}}{{#hasMore}}, {{/hasMore}}{{/allParams}});

    {{#returnType}}Task<{{{returnType}}}>{{/returnType}}{{^returnType}}Task{{/returnType}} {{nickname}}Async ({{#allParams}}{{{dataType}}} {{paramName}}{{#hasMore}}, {{/hasMore}}{{/allParams}});
    {{/operation}}
  }

  public class {{classname}} : I{{classname}} {
    string basePath;
    protected RestClient restClient;

    public {{classname}}(String basePath = "{{basePath}}")
    {
      this.basePath = basePath;
      this.restClient = new RestClient(basePath);
    }

    /// <summary>
    /// Sets the endpoint base url for the services being accessed
    /// </summary>
    /// <param name="basePath"> Base URL
    /// <returns></returns>
    public void SetBasePath(string basePath) {
      this.basePath = basePath;
    }

    /// <summary>
    /// Gets the endpoint base url for the services being accessed
    /// <returns>Base URL</returns>
    /// </summary>
    public String GetBasePath() {
      return this.basePath;
    }

    {{#operation}}
    
    /// <summary>
    /// {{summary}} {{notes}}
    /// </summary>
{{#allParams}}    /// <param name="{{paramName}}">{{description}}</param>
{{/allParams}}
    /// <returns>{{#returnType}}{{{returnType}}}{{/returnType}}</returns>
    public {{#returnType}}{{{returnType}}}{{/returnType}}{{^returnType}}void{{/returnType}} {{nickname}} ({{#allParams}}{{{dataType}}} {{paramName}}{{#hasMore}}, {{/hasMore}}{{/allParams}}) {

      var _request = new RestRequest("{{path}}", Method.{{httpMethod}});

      {{#allParams}}{{#required}}
      // verify the required parameter '{{paramName}}' is set
      if ({{paramName}} == null) throw new ApiException(400, "Missing required parameter '{{paramName}}' when calling {{nickname}}");
      {{/required}}{{/allParams}}

      // add default header, if any
      foreach(KeyValuePair<string, string> defaultHeader in ApiInvoker.GetDefaultHeader())
      {
        _request.AddHeader(defaultHeader.Key, defaultHeader.Value);
      }

      _request.AddUrlSegment("format", "json"); // set format to json by default
      {{#pathParams}}_request.AddUrlSegment("{{baseName}}", ApiInvoker.ParameterToString({{{paramName}}})); // path (url segment) parameter
      {{/pathParams}}
      {{#queryParams}} if ({{paramName}} != null) _request.AddParameter("{{baseName}}", ApiInvoker.ParameterToString({{paramName}})); // query parameter
      {{/queryParams}}
      {{#headerParams}} if ({{paramName}} != null) _request.AddHeader("{{baseName}}", ApiInvoker.ParameterToString({{paramName}})); // header parameter
      {{/headerParams}}
      {{#formParams}}if ({{paramName}} != null) {{#isFile}}_request.AddFile("{{baseName}}", {{paramName}});{{/isFile}}{{^isFile}}_request.AddParameter("{{baseName}}", ApiInvoker.ParameterToString({{paramName}})); // form parameter{{/isFile}}
      {{/formParams}}
      {{#bodyParam}}_request.AddParameter("application/json", ApiInvoker.Serialize({{paramName}}), ParameterType.RequestBody); // http body (model) parameter
      {{/bodyParam}}

      // make the HTTP request
      IRestResponse response = restClient.Execute(_request);
      if (((int)response.StatusCode) >= 400) {
        throw new ApiException ((int)response.StatusCode, "Error calling {{nickname}}: " + response.Content);
      }
      {{#returnType}}return ({{{returnType}}}) ApiInvoker.Deserialize(response.Content, typeof({{{returnType}}}));{{/returnType}}{{^returnType}}
      return;{{/returnType}}
    }
	
	 /// <summary>
    /// {{summary}} {{notes}}
    /// </summary>
{{#allParams}}    /// <param name="{{paramName}}">{{description}}</param>
{{/allParams}}
    /// <returns>{{#returnType}}{{{returnType}}}{{/returnType}}</returns>
    public async {{#returnType}}Task<{{{returnType}}}>{{/returnType}}{{^returnType}}Task{{/returnType}} {{nickname}}Async ({{#allParams}}{{{dataType}}} {{paramName}}{{#hasMore}}, {{/hasMore}}{{/allParams}}) {

      var _request = new RestRequest("{{path}}", Method.{{httpMethod}});

      {{#allParams}}{{#required}}
      // verify the required parameter '{{paramName}}' is set
      if ({{paramName}} == null) throw new ApiException(400, "Missing required parameter '{{paramName}}' when calling {{nickname}}");
      {{/required}}{{/allParams}}

      // add default header, if any
      foreach(KeyValuePair<string, string> defaultHeader in ApiInvoker.GetDefaultHeader())
      {
        _request.AddHeader(defaultHeader.Key, defaultHeader.Value);
      }

      _request.AddUrlSegment("format", "json"); // set format to json by default
      {{#pathParams}}_request.AddUrlSegment("{{baseName}}", ApiInvoker.ParameterToString({{{paramName}}})); // path (url segment) parameter
      {{/pathParams}}
      {{#queryParams}} if ({{paramName}} != null) _request.AddParameter("{{baseName}}", ApiInvoker.ParameterToString({{paramName}})); // query parameter
      {{/queryParams}}
      {{#headerParams}} if ({{paramName}} != null) _request.AddHeader("{{baseName}}", ApiInvoker.ParameterToString({{paramName}})); // header parameter
      {{/headerParams}}
      {{#formParams}}if ({{paramName}} != null) {{#isFile}}_request.AddFile("{{baseName}}", {{paramName}});{{/isFile}}{{^isFile}}_request.AddParameter("{{baseName}}", ApiInvoker.ParameterToString({{paramName}})); // form parameter{{/isFile}}
      {{/formParams}}
      {{#bodyParam}}_request.AddParameter("application/json", ApiInvoker.Serialize({{paramName}}), ParameterType.RequestBody); // http body (model) parameter
      {{/bodyParam}}

      // make the HTTP request
      IRestResponse response = await restClient.ExecuteTaskAsync(_request);
      if (((int)response.StatusCode) >= 400) {
        throw new ApiException ((int)response.StatusCode, "Error calling {{nickname}}: " + response.Content);
      }
      {{#returnType}}return ({{{returnType}}}) ApiInvoker.Deserialize(response.Content, typeof({{{returnType}}}));{{/returnType}}{{^returnType}}
      return;{{/returnType}}
    }
    {{/operation}}
  }  
  {{/operations}}
}