[typescript-axios] handle uniqueItems in query and header parameters (#8965)

* [typescript-axios] handle uniqueItems in query and header parameters

add endpoint /fake/test-unique-paramters to petstore-with-fake-endpoints-models-for-testing-with-http-signature.yaml for demonstration

* update samples

* [typescript-axios] update samples

Co-authored-by: William Cheng <wing328hk@gmail.com>

bin/configs/typescript-axios-with-fake-endpoints-models-for-testing-with-http-signature.yaml

@@ -0,0 +1,3 @@
+generatorName: typescript-axios
+outputDir: samples/client/petstore/typescript-axios/builds/with-fake-endpoints-models-for-testing-with-http-signature
+inputSpec: modules/openapi-generator/src/test/resources/3_0/petstore-with-fake-endpoints-models-for-testing-with-http-signature.yaml

modules/openapi-generator/src/main/resources/typescript-axios/apiInner.mustache

@@ -86,10 +86,20 @@ export const {{classname}}AxiosParamCreator = function (configuration?: Configur
             {{#isArray}}
             if ({{paramName}}) {
             {{#isCollectionFormatMulti}}
+                {{#uniqueItems}}
+                localVarQueryParameter['{{baseName}}'] = Array.from({{paramName}});
+                {{/uniqueItems}}
+                {{^uniqueItems}}
                 localVarQueryParameter['{{baseName}}'] = {{paramName}};
+                {{/uniqueItems}}
             {{/isCollectionFormatMulti}}
             {{^isCollectionFormatMulti}}
+                {{#uniqueItems}}
+                localVarQueryParameter['{{baseName}}'] = Array.from({{paramName}}).join(COLLECTION_FORMATS.{{collectionFormat}});
+                {{/uniqueItems}}
+                {{^uniqueItems}}
                 localVarQueryParameter['{{baseName}}'] = {{paramName}}.join(COLLECTION_FORMATS.{{collectionFormat}});
+                {{/uniqueItems}}
             {{/isCollectionFormatMulti}}
             }
             {{/isArray}}
@@ -117,7 +127,12 @@ export const {{classname}}AxiosParamCreator = function (configuration?: Configur
     {{#headerParams}}
             {{#isArray}}
             if ({{paramName}}) {
+                {{#uniqueItems}}
+                let mapped = Array.from({{paramName}}).map(value => (<any>"{{{dataType}}}" !== "Set<string>") ? JSON.stringify(value) : (value || ""));
+                {{/uniqueItems}}
+                {{^uniqueItems}}
                 let mapped = {{paramName}}.map(value => (<any>"{{{dataType}}}" !== "Array<string>") ? JSON.stringify(value) : (value || ""));
+                {{/uniqueItems}}
                 localVarHeaderParameter['{{baseName}}'] = mapped.join(COLLECTION_FORMATS["{{collectionFormat}}"]);
             }
             {{/isArray}}

modules/openapi-generator/src/test/resources/3_0/petstore-with-fake-endpoints-models-for-testing-with-http-signature.yaml

@@ -1044,6 +1044,39 @@ paths:
       responses:
         "200":
           description: Success
+  /fake/test-unique-paramters:
+    put:
+      tags:
+        - fake
+      description: To test unique items in header and query parameters
+      operationId: testUniqueItemsHeaderAndQueryParameterCollectionFormat
+      parameters:
+        - name: queryUnique
+          in: query
+          required: true
+          schema:
+            type: array
+            uniqueItems: true
+            items:
+              type: string
+        - name: headerUnique
+          in: header
+          required: true
+          schema:
+            type: array
+            uniqueItems: true
+            items:
+              type: string
+      responses:
+        "200":
+          description: Success
+          content:
+            application/json:
+              schema:
+                type: array
+                items:
+                  $ref: '#/components/schemas/Pet'
+                uniqueItems: true
   '/fake/{petId}/uploadImageWithRequiredFile':
     post:
       tags:

samples/client/petstore/typescript-axios/builds/with-fake-endpoints-models-for-testing-with-http-signature/.gitignore

@@ -0,0 +1,4 @@
+wwwroot/*.js
+node_modules
+typings
+dist

samples/client/petstore/typescript-axios/builds/with-fake-endpoints-models-for-testing-with-http-signature/.npmignore

@@ -0,0 +1 @@
+# empty npmignore to ensure all required files (e.g., in the dist folder) are published by npm

samples/client/petstore/typescript-axios/builds/with-fake-endpoints-models-for-testing-with-http-signature/.openapi-generator-ignore

@@ -0,0 +1,23 @@
+# OpenAPI Generator Ignore
+# Generated by openapi-generator https://github.com/openapitools/openapi-generator
+
+# Use this file to prevent files from being overwritten by the generator.
+# The patterns follow closely to .gitignore or .dockerignore.
+
+# As an example, the C# client generator defines ApiClient.cs.
+# You can make changes and tell OpenAPI Generator to ignore just this file by uncommenting the following line:
+#ApiClient.cs
+
+# You can match any string of characters against a directory, file or extension with a single asterisk (*):
+#foo/*/qux
+# The above matches foo/bar/qux and foo/baz/qux, but not foo/bar/baz/qux
+
+# You can recursively match patterns against a directory, file or extension with a double asterisk (**):
+#foo/**/qux
+# This matches foo/bar/qux, foo/baz/qux, and foo/bar/baz/qux
+
+# You can also negate patterns with an exclamation (!).
+# For example, you can ignore all files in a docs folder with the file extension .md:
+#docs/*.md
+# Then explicitly reverse the ignore rule for a single file:
+#!docs/README.md

samples/client/petstore/typescript-axios/builds/with-fake-endpoints-models-for-testing-with-http-signature/.openapi-generator/FILES

@@ -0,0 +1,8 @@
+.gitignore
+.npmignore
+api.ts
+base.ts
+common.ts
+configuration.ts
+git_push.sh
+index.ts

samples/client/petstore/typescript-axios/builds/with-fake-endpoints-models-for-testing-with-http-signature/.openapi-generator/VERSION

@@ -0,0 +1 @@
+5.1.1-SNAPSHOT

samples/client/petstore/typescript-axios/builds/with-fake-endpoints-models-for-testing-with-http-signature/base.ts

@@ -0,0 +1,71 @@
+/* tslint:disable */
+/* eslint-disable */
+/**
+ * OpenAPI Petstore
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ *
+ * NOTE: This class is auto generated by OpenAPI Generator (https://openapi-generator.tech).
+ * https://openapi-generator.tech
+ * Do not edit the class manually.
+ */
+
+
+import { Configuration } from "./configuration";
+// Some imports not used depending on template conditions
+// @ts-ignore
+import globalAxios, { AxiosPromise, AxiosInstance } from 'axios';
+
+export const BASE_PATH = "http://petstore.swagger.io:80/v2".replace(/\/+$/, "");
+
+/**
+ *
+ * @export
+ */
+export const COLLECTION_FORMATS = {
+    csv: ",",
+    ssv: " ",
+    tsv: "\t",
+    pipes: "|",
+};
+
+/**
+ *
+ * @export
+ * @interface RequestArgs
+ */
+export interface RequestArgs {
+    url: string;
+    options: any;
+}
+
+/**
+ *
+ * @export
+ * @class BaseAPI
+ */
+export class BaseAPI {
+    protected configuration: Configuration | undefined;
+
+    constructor(configuration?: Configuration, protected basePath: string = BASE_PATH, protected axios: AxiosInstance = globalAxios) {
+        if (configuration) {
+            this.configuration = configuration;
+            this.basePath = configuration.basePath || this.basePath;
+        }
+    }
+};
+
+/**
+ *
+ * @export
+ * @class RequiredError
+ * @extends {Error}
+ */
+export class RequiredError extends Error {
+    name: "RequiredError" = "RequiredError";
+    constructor(public field: string, msg?: string) {
+        super(msg);
+    }
+}

samples/client/petstore/typescript-axios/builds/with-fake-endpoints-models-for-testing-with-http-signature/common.ts

@@ -0,0 +1,138 @@
+/* tslint:disable */
+/* eslint-disable */
+/**
+ * OpenAPI Petstore
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ *
+ * NOTE: This class is auto generated by OpenAPI Generator (https://openapi-generator.tech).
+ * https://openapi-generator.tech
+ * Do not edit the class manually.
+ */
+
+
+import { Configuration } from "./configuration";
+import { RequiredError,　RequestArgs } from "./base";
+import { AxiosInstance } from 'axios';
+
+/**
+ *
+ * @export
+ */
+export const DUMMY_BASE_URL = 'https://example.com'
+
+/**
+ *
+ * @throws {RequiredError}
+ * @export
+ */
+export const assertParamExists = function (functionName: string, paramName: string, paramValue: unknown) {
+    if (paramValue === null || paramValue === undefined) {
+        throw new RequiredError(paramName, `Required parameter ${paramName} was null or undefined when calling ${functionName}.`);
+    }
+}
+
+/**
+ *
+ * @export
+ */
+export const setApiKeyToObject = async function (object: any, keyParamName: string, configuration?: Configuration) {
+    if (configuration && configuration.apiKey) {
+        const localVarApiKeyValue = typeof configuration.apiKey === 'function'
+            ? await configuration.apiKey(keyParamName)
+            : await configuration.apiKey;
+        object[keyParamName] = localVarApiKeyValue;
+    }
+}
+
+/**
+ *
+ * @export
+ */
+export const setBasicAuthToObject = function (object: any, configuration?: Configuration) {
+    if (configuration && (configuration.username || configuration.password)) {
+        object["auth"] = { username: configuration.username, password: configuration.password };
+    }
+}
+
+/**
+ *
+ * @export
+ */
+export const setBearerAuthToObject = async function (object: any, configuration?: Configuration) {
+    if (configuration && configuration.accessToken) {
+        const accessToken = typeof configuration.accessToken === 'function'
+            ? await configuration.accessToken()
+            : await configuration.accessToken;
+        object["Authorization"] = "Bearer " + accessToken;
+    }
+}
+
+/**
+ *
+ * @export
+ */
+export const setOAuthToObject = async function (object: any, name: string, scopes: string[], configuration?: Configuration) {
+    if (configuration && configuration.accessToken) {
+        const localVarAccessTokenValue = typeof configuration.accessToken === 'function'
+            ? await configuration.accessToken(name, scopes)
+            : await configuration.accessToken;
+        object["Authorization"] = "Bearer " + localVarAccessTokenValue;
+    }
+}
+
+/**
+ *
+ * @export
+ */
+export const setSearchParams = function (url: URL, ...objects: any[]) {
+    const searchParams = new URLSearchParams(url.search);
+    for (const object of objects) {
+        for (const key in object) {
+            if (Array.isArray(object[key])) {
+                searchParams.delete(key);
+                for (const item of object[key]) {
+                    searchParams.append(key, item);
+                }
+            } else {
+                searchParams.set(key, object[key]);
+            }
+        }
+    }
+    url.search = searchParams.toString();
+}
+
+/**
+ *
+ * @export
+ */
+export const serializeDataIfNeeded = function (value: any, requestOptions: any, configuration?: Configuration) {
+    const nonString = typeof value !== 'string';
+    const needsSerialization = nonString && configuration && configuration.isJsonMime
+        ? configuration.isJsonMime(requestOptions.headers['Content-Type'])
+        : nonString;
+    return needsSerialization
+        ? JSON.stringify(value !== undefined ? value : {})
+        : (value || "");
+}
+
+/**
+ *
+ * @export
+ */
+export const toPathString = function (url: URL) {
+    return url.pathname + url.search + url.hash
+}
+
+/**
+ *
+ * @export
+ */
+export const createRequestFunction = function (axiosArgs: RequestArgs, globalAxios: AxiosInstance, BASE_PATH: string, configuration?: Configuration) {
+    return (axios: AxiosInstance = globalAxios, basePath: string = BASE_PATH) => {
+        const axiosRequestArgs = {...axiosArgs.options, url: (configuration?.basePath || basePath) + axiosArgs.url};
+        return axios.request(axiosRequestArgs);
+    };
+}

samples/client/petstore/typescript-axios/builds/with-fake-endpoints-models-for-testing-with-http-signature/configuration.ts

@@ -0,0 +1,101 @@
+/* tslint:disable */
+/* eslint-disable */
+/**
+ * OpenAPI Petstore
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ *
+ * NOTE: This class is auto generated by OpenAPI Generator (https://openapi-generator.tech).
+ * https://openapi-generator.tech
+ * Do not edit the class manually.
+ */
+
+
+export interface ConfigurationParameters {
+    apiKey?: string | Promise<string> | ((name: string) => string) | ((name: string) => Promise<string>);
+    username?: string;
+    password?: string;
+    accessToken?: string | Promise<string> | ((name?: string, scopes?: string[]) => string) | ((name?: string, scopes?: string[]) => Promise<string>);
+    basePath?: string;
+    baseOptions?: any;
+    formDataCtor?: new () => any;
+}
+
+export class Configuration {
+    /**
+     * parameter for apiKey security
+     * @param name security name
+     * @memberof Configuration
+     */
+    apiKey?: string | Promise<string> | ((name: string) => string) | ((name: string) => Promise<string>);
+    /**
+     * parameter for basic security
+     *
+     * @type {string}
+     * @memberof Configuration
+     */
+    username?: string;
+    /**
+     * parameter for basic security
+     *
+     * @type {string}
+     * @memberof Configuration
+     */
+    password?: string;
+    /**
+     * parameter for oauth2 security
+     * @param name security name
+     * @param scopes oauth2 scope
+     * @memberof Configuration
+     */
+    accessToken?: string | Promise<string> | ((name?: string, scopes?: string[]) => string) | ((name?: string, scopes?: string[]) => Promise<string>);
+    /**
+     * override base path
+     *
+     * @type {string}
+     * @memberof Configuration
+     */
+    basePath?: string;
+    /**
+     * base options for axios calls
+     *
+     * @type {any}
+     * @memberof Configuration
+     */
+    baseOptions?: any;
+    /**
+     * The FormData constructor that will be used to create multipart form data
+     * requests. You can inject this here so that execution environments that
+     * do not support the FormData class can still run the generated client.
+     *
+     * @type {new () => FormData}
+     */
+    formDataCtor?: new () => any;
+
+    constructor(param: ConfigurationParameters = {}) {
+        this.apiKey = param.apiKey;
+        this.username = param.username;
+        this.password = param.password;
+        this.accessToken = param.accessToken;
+        this.basePath = param.basePath;
+        this.baseOptions = param.baseOptions;
+        this.formDataCtor = param.formDataCtor;
+    }
+
+    /**
+     * Check if the given MIME is a JSON MIME.
+     * JSON MIME examples:
+     *   application/json
+     *   application/json; charset=UTF8
+     *   APPLICATION/JSON
+     *   application/vnd.company+json
+     * @param mime - MIME (Multipurpose Internet Mail Extensions)
+     * @return True if the given MIME is JSON, false otherwise.
+     */
+    public isJsonMime(mime: string): boolean {
+        const jsonMime: RegExp = new RegExp('^(application\/json|[^;/ \t]+\/[^;/ \t]+[+]json)[ \t]*(;.*)?$', 'i');
+        return mime !== null && (jsonMime.test(mime) || mime.toLowerCase() === 'application/json-patch+json');
+    }
+}

samples/client/petstore/typescript-axios/builds/with-fake-endpoints-models-for-testing-with-http-signature/git_push.sh

@@ -0,0 +1,58 @@
+#!/bin/sh
+# ref: https://help.github.com/articles/adding-an-existing-project-to-github-using-the-command-line/
+#
+# Usage example: /bin/sh ./git_push.sh wing328 openapi-pestore-perl "minor update" "gitlab.com"
+
+git_user_id=$1
+git_repo_id=$2
+release_note=$3
+git_host=$4
+
+if [ "$git_host" = "" ]; then
+    git_host="github.com"
+    echo "[INFO] No command line input provided. Set \$git_host to $git_host"
+fi
+
+if [ "$git_user_id" = "" ]; then
+    git_user_id="GIT_USER_ID"
+    echo "[INFO] No command line input provided. Set \$git_user_id to $git_user_id"
+fi
+
+if [ "$git_repo_id" = "" ]; then
+    git_repo_id="GIT_REPO_ID"
+    echo "[INFO] No command line input provided. Set \$git_repo_id to $git_repo_id"
+fi
+
+if [ "$release_note" = "" ]; then
+    release_note="Minor update"
+    echo "[INFO] No command line input provided. Set \$release_note to $release_note"
+fi
+
+# Initialize the local directory as a Git repository
+git init
+
+# Adds the files in the local repository and stages them for commit.
+git add .
+
+# Commits the tracked changes and prepares them to be pushed to a remote repository.
+git commit -m "$release_note"
+
+# Sets the new remote
+git_remote=`git remote`
+if [ "$git_remote" = "" ]; then # git remote not defined
+
+    if [ "$GIT_TOKEN" = "" ]; then
+        echo "[INFO] \$GIT_TOKEN (environment variable) is not set. Using the git credential in your environment."
+        git remote add origin https://${git_host}/${git_user_id}/${git_repo_id}.git
+    else
+        git remote add origin https://${git_user_id}:${GIT_TOKEN}@${git_host}/${git_user_id}/${git_repo_id}.git
+    fi
+
+fi
+
+git pull origin master
+
+# Pushes (Forces) the changes in the local repository up to the remote repository
+echo "Git pushing to https://${git_host}/${git_user_id}/${git_repo_id}.git"
+git push origin master 2>&1 | grep -v 'To https'
+

samples/client/petstore/typescript-axios/builds/with-fake-endpoints-models-for-testing-with-http-signature/index.ts

@@ -0,0 +1,18 @@
+/* tslint:disable */
+/* eslint-disable */
+/**
+ * OpenAPI Petstore
+ * This spec is mainly for testing Petstore server and contains fake endpoints, models. Please do not use this for any other purpose. Special characters: \" \\
+ *
+ * The version of the OpenAPI document: 1.0.0
+ * 
+ *
+ * NOTE: This class is auto generated by OpenAPI Generator (https://openapi-generator.tech).
+ * https://openapi-generator.tech
+ * Do not edit the class manually.
+ */
+
+
+export * from "./api";
+export * from "./configuration";
+

samples/openapi3/client/petstore/go/go-petstore/README.md

@@ -94,6 +94,7 @@ Class | Method | HTTP request | Description
 *FakeApi* | [**TestInlineAdditionalProperties**](docs/FakeApi.md#testinlineadditionalproperties) | **Post** /fake/inline-additionalProperties | test inline additionalProperties
 *FakeApi* | [**TestJsonFormData**](docs/FakeApi.md#testjsonformdata) | **Get** /fake/jsonFormData | test json serialization of form data
 *FakeApi* | [**TestQueryParameterCollectionFormat**](docs/FakeApi.md#testqueryparametercollectionformat) | **Put** /fake/test-query-paramters | 
+*FakeApi* | [**TestUniqueItemsHeaderAndQueryParameterCollectionFormat**](docs/FakeApi.md#testuniqueitemsheaderandqueryparametercollectionformat) | **Put** /fake/test-unique-paramters | 
 *FakeClassnameTags123Api* | [**TestClassname**](docs/FakeClassnameTags123Api.md#testclassname) | **Patch** /fake_classname_test | To test class name in snake case
 *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

samples/openapi3/client/petstore/go/go-petstore/api/openapi.yaml

@@ -1120,6 +1120,43 @@ paths:
           description: Success
       tags:
       - fake
+  /fake/test-unique-paramters:
+    put:
+      description: To test unique items in header and query parameters
+      operationId: testUniqueItemsHeaderAndQueryParameterCollectionFormat
+      parameters:
+      - explode: true
+        in: query
+        name: queryUnique
+        required: true
+        schema:
+          items:
+            type: string
+          type: array
+          uniqueItems: true
+        style: form
+      - explode: false
+        in: header
+        name: headerUnique
+        required: true
+        schema:
+          items:
+            type: string
+          type: array
+          uniqueItems: true
+        style: simple
+      responses:
+        "200":
+          content:
+            application/json:
+              schema:
+                items:
+                  $ref: '#/components/schemas/Pet'
+                type: array
+                uniqueItems: true
+          description: Success
+      tags:
+      - fake
   /fake/{petId}/uploadImageWithRequiredFile:
     post:
       operationId: uploadFileWithRequiredFile

samples/openapi3/client/petstore/go/go-petstore/api_fake.go

@@ -215,6 +215,20 @@ type FakeApi interface {
 	 * TestQueryParameterCollectionFormatExecute executes the request
 	 */
 	TestQueryParameterCollectionFormatExecute(r ApiTestQueryParameterCollectionFormatRequest) (*_nethttp.Response, error)
+
+	/*
+	 * TestUniqueItemsHeaderAndQueryParameterCollectionFormat Method for TestUniqueItemsHeaderAndQueryParameterCollectionFormat
+	 * To test unique items in header and query parameters
+	 * @param ctx _context.Context - for authentication, logging, cancellation, deadlines, tracing, etc. Passed from http.Request or context.Background().
+	 * @return ApiTestUniqueItemsHeaderAndQueryParameterCollectionFormatRequest
+	 */
+	TestUniqueItemsHeaderAndQueryParameterCollectionFormat(ctx _context.Context) ApiTestUniqueItemsHeaderAndQueryParameterCollectionFormatRequest
+
+	/*
+	 * TestUniqueItemsHeaderAndQueryParameterCollectionFormatExecute executes the request
+	 * @return []Pet
+	 */
+	TestUniqueItemsHeaderAndQueryParameterCollectionFormatExecute(r ApiTestUniqueItemsHeaderAndQueryParameterCollectionFormatRequest) ([]Pet, *_nethttp.Response, error)
 }
 
 // FakeApiService FakeApi service
@@ -1978,3 +1992,133 @@ func (a *FakeApiService) TestQueryParameterCollectionFormatExecute(r ApiTestQuer
 
 	return localVarHTTPResponse, nil
 }
+
+type ApiTestUniqueItemsHeaderAndQueryParameterCollectionFormatRequest struct {
+	ctx _context.Context
+	ApiService FakeApi
+	queryUnique *[]string
+	headerUnique *[]string
+}
+
+func (r ApiTestUniqueItemsHeaderAndQueryParameterCollectionFormatRequest) QueryUnique(queryUnique []string) ApiTestUniqueItemsHeaderAndQueryParameterCollectionFormatRequest {
+	r.queryUnique = &queryUnique
+	return r
+}
+func (r ApiTestUniqueItemsHeaderAndQueryParameterCollectionFormatRequest) HeaderUnique(headerUnique []string) ApiTestUniqueItemsHeaderAndQueryParameterCollectionFormatRequest {
+	r.headerUnique = &headerUnique
+	return r
+}
+
+func (r ApiTestUniqueItemsHeaderAndQueryParameterCollectionFormatRequest) Execute() ([]Pet, *_nethttp.Response, error) {
+	return r.ApiService.TestUniqueItemsHeaderAndQueryParameterCollectionFormatExecute(r)
+}
+
+/*
+ * TestUniqueItemsHeaderAndQueryParameterCollectionFormat Method for TestUniqueItemsHeaderAndQueryParameterCollectionFormat
+ * To test unique items in header and query parameters
+ * @param ctx _context.Context - for authentication, logging, cancellation, deadlines, tracing, etc. Passed from http.Request or context.Background().
+ * @return ApiTestUniqueItemsHeaderAndQueryParameterCollectionFormatRequest
+ */
+func (a *FakeApiService) TestUniqueItemsHeaderAndQueryParameterCollectionFormat(ctx _context.Context) ApiTestUniqueItemsHeaderAndQueryParameterCollectionFormatRequest {
+	return ApiTestUniqueItemsHeaderAndQueryParameterCollectionFormatRequest{
+		ApiService: a,
+		ctx: ctx,
+	}
+}
+
+/*
+ * Execute executes the request
+ * @return []Pet
+ */
+func (a *FakeApiService) TestUniqueItemsHeaderAndQueryParameterCollectionFormatExecute(r ApiTestUniqueItemsHeaderAndQueryParameterCollectionFormatRequest) ([]Pet, *_nethttp.Response, error) {
+	var (
+		localVarHTTPMethod   = _nethttp.MethodPut
+		localVarPostBody     interface{}
+		localVarFormFileName string
+		localVarFileName     string
+		localVarFileBytes    []byte
+		localVarReturnValue  []Pet
+	)
+
+	localBasePath, err := a.client.cfg.ServerURLWithContext(r.ctx, "FakeApiService.TestUniqueItemsHeaderAndQueryParameterCollectionFormat")
+	if err != nil {
+		return localVarReturnValue, nil, GenericOpenAPIError{error: err.Error()}
+	}
+
+	localVarPath := localBasePath + "/fake/test-unique-paramters"
+
+	localVarHeaderParams := make(map[string]string)
+	localVarQueryParams := _neturl.Values{}
+	localVarFormParams := _neturl.Values{}
+	if r.queryUnique == nil {
+		return localVarReturnValue, nil, reportError("queryUnique is required and must be specified")
+	}
+	if r.headerUnique == nil {
+		return localVarReturnValue, nil, reportError("headerUnique is required and must be specified")
+	}
+
+	{
+		t := *r.queryUnique
+		if reflect.TypeOf(t).Kind() == reflect.Slice {
+			s := reflect.ValueOf(t)
+			for i := 0; i < s.Len(); i++ {
+				localVarQueryParams.Add("queryUnique", parameterToString(s.Index(i), "multi"))
+			}
+		} else {
+			localVarQueryParams.Add("queryUnique", parameterToString(t, "multi"))
+		}
+	}
+	// to determine the Content-Type header
+	localVarHTTPContentTypes := []string{}
+
+	// set Content-Type header
+	localVarHTTPContentType := selectHeaderContentType(localVarHTTPContentTypes)
+	if localVarHTTPContentType != "" {
+		localVarHeaderParams["Content-Type"] = localVarHTTPContentType
+	}
+
+	// to determine the Accept header
+	localVarHTTPHeaderAccepts := []string{"application/json"}
+
+	// set Accept header
+	localVarHTTPHeaderAccept := selectHeaderAccept(localVarHTTPHeaderAccepts)
+	if localVarHTTPHeaderAccept != "" {
+		localVarHeaderParams["Accept"] = localVarHTTPHeaderAccept
+	}
+	localVarHeaderParams["headerUnique"] = parameterToString(*r.headerUnique, "csv")
+	req, err := a.client.prepareRequest(r.ctx, localVarPath, localVarHTTPMethod, localVarPostBody, localVarHeaderParams, localVarQueryParams, localVarFormParams, localVarFormFileName, localVarFileName, localVarFileBytes)
+	if err != nil {
+		return localVarReturnValue, nil, err
+	}
+
+	localVarHTTPResponse, err := a.client.callAPI(req)
+	if err != nil || localVarHTTPResponse == nil {
+		return localVarReturnValue, localVarHTTPResponse, err
+	}
+
+	localVarBody, err := _ioutil.ReadAll(localVarHTTPResponse.Body)
+	localVarHTTPResponse.Body.Close()
+	localVarHTTPResponse.Body = _ioutil.NopCloser(bytes.NewBuffer(localVarBody))
+	if err != nil {
+		return localVarReturnValue, localVarHTTPResponse, err
+	}
+
+	if localVarHTTPResponse.StatusCode >= 300 {
+		newErr := GenericOpenAPIError{
+			body:  localVarBody,
+			error: localVarHTTPResponse.Status,
+		}
+		return localVarReturnValue, localVarHTTPResponse, newErr
+	}
+
+	err = a.client.decode(&localVarReturnValue, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
+	if err != nil {
+		newErr := GenericOpenAPIError{
+			body:  localVarBody,
+			error: err.Error(),
+		}
+		return localVarReturnValue, localVarHTTPResponse, newErr
+	}
+
+	return localVarReturnValue, localVarHTTPResponse, nil
+}

samples/openapi3/client/petstore/go/go-petstore/docs/FakeApi.md

@@ -18,6 +18,7 @@ Method | HTTP request | Description
 [**TestInlineAdditionalProperties**](FakeApi.md#TestInlineAdditionalProperties) | **Post** /fake/inline-additionalProperties | test inline additionalProperties
 [**TestJsonFormData**](FakeApi.md#TestJsonFormData) | **Get** /fake/jsonFormData | test json serialization of form data
 [**TestQueryParameterCollectionFormat**](FakeApi.md#TestQueryParameterCollectionFormat) | **Put** /fake/test-query-paramters | 
+[**TestUniqueItemsHeaderAndQueryParameterCollectionFormat**](FakeApi.md#TestUniqueItemsHeaderAndQueryParameterCollectionFormat) | **Put** /fake/test-unique-paramters | 
 
 
 
@@ -978,3 +979,71 @@ No authorization required
 [[Back to Model list]](../README.md#documentation-for-models)
 [[Back to README]](../README.md)
 
+
+## TestUniqueItemsHeaderAndQueryParameterCollectionFormat
+
+> []Pet TestUniqueItemsHeaderAndQueryParameterCollectionFormat(ctx).QueryUnique(queryUnique).HeaderUnique(headerUnique).Execute()
+
+
+
+
+
+### Example
+
+```go
+package main
+
+import (
+    "context"
+    "fmt"
+    "os"
+    openapiclient "./openapi"
+)
+
+func main() {
+    queryUnique := []string{"Inner_example"} // []string | 
+    headerUnique := []string{"Inner_example"} // []string | 
+
+    configuration := openapiclient.NewConfiguration()
+    api_client := openapiclient.NewAPIClient(configuration)
+    resp, r, err := api_client.FakeApi.TestUniqueItemsHeaderAndQueryParameterCollectionFormat(context.Background()).QueryUnique(queryUnique).HeaderUnique(headerUnique).Execute()
+    if err != nil {
+        fmt.Fprintf(os.Stderr, "Error when calling `FakeApi.TestUniqueItemsHeaderAndQueryParameterCollectionFormat``: %v\n", err)
+        fmt.Fprintf(os.Stderr, "Full HTTP response: %v\n", r)
+    }
+    // response from `TestUniqueItemsHeaderAndQueryParameterCollectionFormat`: []Pet
+    fmt.Fprintf(os.Stdout, "Response from `FakeApi.TestUniqueItemsHeaderAndQueryParameterCollectionFormat`: %v\n", resp)
+}
+```
+
+### Path Parameters
+
+
+
+### Other Parameters
+
+Other parameters are passed through a pointer to a apiTestUniqueItemsHeaderAndQueryParameterCollectionFormatRequest struct via the builder pattern
+
+
+Name | Type | Description  | Notes
+------------- | ------------- | ------------- | -------------
+ **queryUnique** | **[]string** |  | 
+ **headerUnique** | **[]string** |  | 
+
+### Return type
+
+[**[]Pet**](Pet.md)
+
+### Authorization
+
+No authorization required
+
+### HTTP request headers
+
+- **Content-Type**: Not defined
+- **Accept**: application/json
+
+[[Back to top]](#) [[Back to API list]](../README.md#documentation-for-api-endpoints)
+[[Back to Model list]](../README.md#documentation-for-models)
+[[Back to README]](../README.md)
+