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import superagent from "superagent";
import querystring from "querystring";
{{#emitJSDoc}}/**
* @module {{#invokerPackage}}{{invokerPackage}}/{{/invokerPackage}}ApiClient
* @version {{projectVersion}}
*/
/**
* Manages low level client-server communications, parameter marshalling, etc. There should not be any need for an
* application to use this class directly - the *Api and model classes provide the public API for the service. The
* contents of this file should be regarded as internal but are documented for completeness.
* @alias module:{{#invokerPackage}}{{invokerPackage}}/{{/invokerPackage}}ApiClient
* @class
*/{{/emitJSDoc}}
export class ApiClient {
constructor() {
{{#emitJSDoc}}/**
* The base URL against which to resolve every API call's (relative) path.
* @type {String}
* @default {{{basePath}}}
*/{{/emitJSDoc}}
this.basePath = '{{{basePath}}}'.replace(/\/+$/, '');
{{#emitJSDoc}}/**
* The authentication methods to be included for all API calls.
* @type {Array.}
*/{{/emitJSDoc}}{{=< >=}}
this.authentications = {
<#authMethods>
<#isBasic>
'': {type: 'basic'}<^-last>,
<#isApiKey>
'': {type: 'apiKey', 'in': <#isKeyInHeader>'header'<^isKeyInHeader>'query', name: ''}<^-last>,
<#isOAuth>
'': {type: 'oauth2'}<^-last>,
}
<={{ }}=>{{#emitJSDoc}}/**
* The default HTTP headers to be included for all API calls.
* @type {Array.}
* @default {}
*/{{/emitJSDoc}}
this.defaultHeaders = {};
/**
* The default HTTP timeout for all API calls.
* @type {Number}
* @default 60000
*/
this.timeout = 60000;
/**
* If set to false an additional timestamp parameter is added to all API GET calls to
* prevent browser caching
* @type {Boolean}
* @default true
*/
this.cache = true;
{{#emitJSDoc}}/**
* If set to true, the client will save the cookies from each server
* response, and return them in the next request.
* @default false
*/{{/emitJSDoc}}
this.enableCookies = false;
/*
* Used to save and return cookies in a node.js (non-browser) setting,
* if this.enableCookies is set to true.
*/
if (typeof window === 'undefined') {
this.agent = new superagent.agent();
}
/*
* Allow user to override superagent agent
*/
this.requestAgent = null;
}
{{#emitJSDoc}}/**
* Returns a string representation for an actual parameter.
* @param param The actual parameter.
* @returns {String} The string representation of param.
*/{{/emitJSDoc}}
paramToString(param) {
if (param == undefined || param == null) {
return '';
}
if (param instanceof Date) {
return param.toJSON();
}
return param.toString();
}
{{#emitJSDoc}}/**
* Builds full URL by appending the given path to the base URL and replacing path parameter place-holders with parameter values.
* NOTE: query parameters are not handled here.
* @param {String} path The path to append to the base URL.
* @param {Object} pathParams The parameter values to append.
* @returns {String} The encoded path with parameter values substituted.
*/{{/emitJSDoc}}
buildUrl(path, pathParams) {
if (!path.match(/^\//)) {
path = '/' + path;
}
var url = this.basePath + path;
url = url.replace(/\{([\w-]+)\}/g, (fullMatch, key) => {
var value;
if (pathParams.hasOwnProperty(key)) {
value = this.paramToString(pathParams[key]);
} else {
value = fullMatch;
}
return encodeURIComponent(value);
});
return url;
}
{{#emitJSDoc}}/**
* Checks whether the given content type represents JSON.
* JSON content type examples:
*
*
application/json
*
application/json; charset=UTF8
*
APPLICATION/JSON
*
* @param {String} contentType The MIME content type to check.
* @returns {Boolean} true if contentType represents JSON, otherwise false.
*/{{/emitJSDoc}}
isJsonMime(contentType) {
return Boolean(contentType != null && contentType.match(/^application\/json(;.*)?$/i));
}
{{#emitJSDoc}}/**
* Chooses a content type from the given array, with JSON preferred; i.e. return JSON if included, otherwise return the first.
* @param {Array.} contentTypes
* @returns {String} The chosen content type, preferring JSON.
*/{{/emitJSDoc}}
jsonPreferredMime(contentTypes) {
for (var i = 0; i < contentTypes.length; i++) {
if (this.isJsonMime(contentTypes[i])) {
return contentTypes[i];
}
}
return contentTypes[0];
}
{{#emitJSDoc}}/**
* Checks whether the given parameter value represents file-like content.
* @param param The parameter to check.
* @returns {Boolean} true if param represents a file.
*/
{{/emitJSDoc}}
isFileParam(param) {
// fs.ReadStream in Node.js and Electron (but not in runtime like browserify)
if (typeof require === 'function') {
let fs;
try {
fs = require('fs');
} catch (err) {}
if (fs && fs.ReadStream && param instanceof fs.ReadStream) {
return true;
}
}
// Buffer in Node.js
if (typeof Buffer === 'function' && param instanceof Buffer) {
return true;
}
// Blob in browser
if (typeof Blob === 'function' && param instanceof Blob) {
return true;
}
// File in browser (it seems File object is also instance of Blob, but keep this for safe)
if (typeof File === 'function' && param instanceof File) {
return true;
}
return false;
}
{{#emitJSDoc}}/**
* Normalizes parameter values:
*
*
remove nils
*
keep files and arrays
*
format to string with `paramToString` for other cases
*
* @param {Object.} params The parameters as object properties.
* @returns {Object.} normalized parameters.
*/{{/emitJSDoc}}
normalizeParams(params) {
var newParams = {};
for (var key in params) {
if (params.hasOwnProperty(key) && params[key] != undefined && params[key] != null) {
var value = params[key];
if (this.isFileParam(value) || Array.isArray(value)) {
newParams[key] = value;
} else {
newParams[key] = this.paramToString(value);
}
}
}
return newParams;
}
{{#emitJSDoc}}/**
* Enumeration of collection format separator strategies.
* @enum {String}
* @readonly
*/{{/emitJSDoc}}
static CollectionFormatEnum = {
{{#emitJSDoc}}/**
* Comma-separated values. Value: csv
* @const
*/{{/emitJSDoc}}
CSV: ',',
{{#emitJSDoc}}/**
* Space-separated values. Value: ssv
* @const
*/{{/emitJSDoc}}
SSV: ' ',
{{#emitJSDoc}}/**
* Tab-separated values. Value: tsv
* @const
*/{{/emitJSDoc}}
TSV: '\t',
{{#emitJSDoc}}/**
* Pipe(|)-separated values. Value: pipes
* @const
*/{{/emitJSDoc}}
PIPES: '|',
{{#emitJSDoc}}/**
* Native array. Value: multi
* @const
*/{{/emitJSDoc}}
MULTI: 'multi'
};
{{#emitJSDoc}}/**
* Builds a string representation of an array-type actual parameter, according to the given collection format.
* @param {Array} param An array parameter.
* @param {module:{{#invokerPackage}}{{invokerPackage}}/{{/invokerPackage}}ApiClient.CollectionFormatEnum} collectionFormat The array element separator strategy.
* @returns {String|Array} A string representation of the supplied collection, using the specified delimiter. Returns
* param as is if collectionFormat is multi.
*/{{/emitJSDoc}}
buildCollectionParam(param, collectionFormat) {
if (param == null) {
return null;
}
switch (collectionFormat) {
case 'csv':
return param.map(this.paramToString).join(',');
case 'ssv':
return param.map(this.paramToString).join(' ');
case 'tsv':
return param.map(this.paramToString).join('\t');
case 'pipes':
return param.map(this.paramToString).join('|');
case 'multi':
//return the array directly as SuperAgent will handle it as expected
return param.map(this.paramToString);
default:
throw new Error('Unknown collection format: ' + collectionFormat);
}
}
{{#emitJSDoc}}/**
* Applies authentication headers to the request.
* @param {Object} request The request object created by a superagent() call.
* @param {Array.} authNames An array of authentication method names.
*/{{/emitJSDoc}}
applyAuthToRequest(request, authNames) {
authNames.forEach((authName) => {
var auth = this.authentications[authName];
switch (auth.type) {
case 'basic':
if (auth.username || auth.password) {
request.auth(auth.username || '', auth.password || '');
}
break;
case 'apiKey':
if (auth.apiKey) {
var data = {};
if (auth.apiKeyPrefix) {
data[auth.name] = auth.apiKeyPrefix + ' ' + auth.apiKey;
} else {
data[auth.name] = auth.apiKey;
}
if (auth['in'] === 'header') {
request.set(data);
} else {
request.query(data);
}
}
break;
case 'oauth2':
if (auth.accessToken) {
request.set({'Authorization': 'Bearer ' + auth.accessToken});
}
break;
default:
throw new Error('Unknown authentication type: ' + auth.type);
}
});
}
{{#emitJSDoc}}/**
* Deserializes an HTTP response body into a value of the specified type.
* @param {Object} response A SuperAgent response object.
* @param {(String|Array.|Object.|Function)} returnType The type to return. Pass a string for simple types
* or the constructor function for a complex type. Pass an array containing the type name to return an array of that type. To
* return an object, pass an object with one property whose name is the key type and whose value is the corresponding value type:
* all properties on data will be converted to this type.
* @returns A value of the specified type.
*/
{{/emitJSDoc}}
deserialize(response, returnType) {
if (response == null || returnType == null || response.status == 204) {
return null;
}
// Rely on SuperAgent for parsing response body.
// See http://visionmedia.github.io/superagent/#parsing-response-bodies
var data = response.body;
if (data == null || (typeof data === 'object' && typeof data.length === 'undefined' && !Object.keys(data).length)) {
// SuperAgent does not always produce a body; use the unparsed response as a fallback
data = response.text;
}
return ApiClient.convertToType(data, returnType);
}
{{#emitJSDoc}}{{^usePromises}}/**
* Callback function to receive the result of the operation.
* @callback module:{{#invokerPackage}}{{invokerPackage}}/{{/invokerPackage}}ApiClient~callApiCallback
* @param {String} error Error message, if any.
* @param data The data returned by the service call.
* @param {String} response The complete HTTP response.
*/{{/usePromises}}{{/emitJSDoc}}
{{#emitJSDoc}}/**
* Invokes the REST service using the supplied settings and parameters.
* @param {String} path The base URL to invoke.
* @param {String} httpMethod The HTTP method to use.
* @param {Object.} pathParams A map of path parameters and their values.
* @param {Object.} queryParams A map of query parameters and their values.
* @param {Object.} headerParams A map of header parameters and their values.
* @param {Object.} formParams A map of form parameters and their values.
* @param {Object} bodyParam The value to pass as the request body.
* @param {Array.} authNames An array of authentication type names.
* @param {Array.} contentTypes An array of request MIME types.
* @param {Array.} accepts An array of acceptable response MIME types.
* @param {(String|Array|ObjectFunction)} returnType The required type to return; can be a string for simple types or the
* constructor for a complex type.{{^usePromises}}
* @param {module:{{#invokerPackage}}{{invokerPackage}}/{{/invokerPackage}}ApiClient~callApiCallback} callback The callback function.{{/usePromises}}
* @returns {{#usePromises}}{Promise} A {@link https://www.promisejs.org/|Promise} object{{/usePromises}}{{^usePromises}}{Object} The SuperAgent request object{{/usePromises}}.
*/
{{/emitJSDoc}}
callApi(path, httpMethod, pathParams,
queryParams, headerParams, formParams, bodyParam, authNames, contentTypes, accepts,
returnType{{^usePromises}}, callback{{/usePromises}}) {
var url = this.buildUrl(path, pathParams);
var request = superagent(httpMethod, url);
// apply authentications
this.applyAuthToRequest(request, authNames);
// set query parameters
if (httpMethod.toUpperCase() === 'GET' && this.cache === false) {
queryParams['_'] = new Date().getTime();
}
request.query(this.normalizeParams(queryParams));
// set header parameters
request.set(this.defaultHeaders).set(this.normalizeParams(headerParams));
// set requestAgent if it is set by user
if (this.requestAgent) {
request.agent(this.requestAgent);
}
// set request timeout
request.timeout(this.timeout);
var contentType = this.jsonPreferredMime(contentTypes);
if (contentType) {
// Issue with superagent and multipart/form-data (https://github.com/visionmedia/superagent/issues/746)
if(contentType != 'multipart/form-data') {
request.type(contentType);
}
} else if (!request.header['Content-Type']) {
request.type('application/json');
}
if (contentType === 'application/x-www-form-urlencoded') {
request.send(querystring.stringify(this.normalizeParams(formParams)));
} else if (contentType == 'multipart/form-data') {
var _formParams = this.normalizeParams(formParams);
for (var key in _formParams) {
if (_formParams.hasOwnProperty(key)) {
if (this.isFileParam(_formParams[key])) {
// file field
request.attach(key, _formParams[key]);
} else {
request.field(key, _formParams[key]);
}
}
}
} else if (bodyParam) {
request.send(bodyParam);
}
var accept = this.jsonPreferredMime(accepts);
if (accept) {
request.accept(accept);
}
if (returnType === 'Blob') {
request.responseType('blob');
} else if (returnType === 'String') {
request.responseType('string');
}
// Attach previously saved cookies, if enabled
if (this.enableCookies){
if (typeof window === 'undefined') {
this.agent.attachCookies(request);
}
else {
request.withCredentials();
}
}
{{#usePromises}}return new Promise((resolve, reject) => {
request.end((error, response) => {
if (error) {
reject(error);
} else {
try {
var data = this.deserialize(response, returnType);
if (this.enableCookies && typeof window === 'undefined'){
this.agent.saveCookies(response);
}
resolve({data, response});
} catch (err) {
reject(err);
}
}
});
});{{/usePromises}}
{{^usePromises}}request.end((error, response) => {
if (callback) {
var data = null;
if (!error) {
try {
data = this.deserialize(response, returnType);
if (this.enableCookies && typeof window === 'undefined'){
this.agent.saveCookies(response);
}
} catch (err) {
error = err;
}
}
callback(error, data, response);
}
});
return request;{{/usePromises}}
}
{{#emitJSDoc}}/**
* Parses an ISO-8601 string representation of a date value.
* @param {String} str The date value as a string.
* @returns {Date} The parsed date object.
*/{{/emitJSDoc}}
static parseDate(str) {
return new Date(str);
}
{{#emitJSDoc}}/**
* Converts a value to the specified type.
* @param {(String|Object)} data The data to convert, as a string or object.
* @param {(String|Array.|Object.|Function)} type The type to return. Pass a string for simple types
* or the constructor function for a complex type. Pass an array containing the type name to return an array of that type. To
* return an object, pass an object with one property whose name is the key type and whose value is the corresponding value type:
* all properties on data will be converted to this type.
* @returns An instance of the specified type or null or undefined if data is null or undefined.
*/
{{/emitJSDoc}}
static convertToType(data, type) {
if (data === null || data === undefined)
return data
switch (type) {
case 'Boolean':
return Boolean(data);
case 'Integer':
return parseInt(data, 10);
case 'Number':
return parseFloat(data);
case 'String':
return String(data);
case 'Date':
return ApiClient.parseDate(String(data));
case 'Blob':
return data;
default:
if (type === Object) {
// generic object, return directly
return data;
} else if (typeof type === 'function') {
// for model type like: User
return type.constructFromObject(data);
} else if (Array.isArray(type)) {
// for array type like: ['String']
var itemType = type[0];
return data.map((item) => {
return ApiClient.convertToType(item, itemType);
});
} else if (typeof type === 'object') {
// for plain object type like: {'String': 'Integer'}
var keyType, valueType;
for (var k in type) {
if (type.hasOwnProperty(k)) {
keyType = k;
valueType = type[k];
break;
}
}
var result = {};
for (var k in data) {
if (data.hasOwnProperty(k)) {
var key = ApiClient.convertToType(k, keyType);
var value = ApiClient.convertToType(data[k], valueType);
result[key] = value;
}
}
return result;
} else {
// for unknown type, return the data directly
return data;
}
}
}
{{#emitJSDoc}}/**
* Constructs a new map or array model from REST data.
* @param data {Object|Array} The REST data.
* @param obj {Object|Array} The target object or array.
*/{{/emitJSDoc}}
static constructFromObject(data, obj, itemType) {
if (Array.isArray(data)) {
for (var i = 0; i < data.length; i++) {
if (data.hasOwnProperty(i))
obj[i] = ApiClient.convertToType(data[i], itemType);
}
} else {
for (var k in data) {
if (data.hasOwnProperty(k))
obj[k] = ApiClient.convertToType(data[k], itemType);
}
}
};
}
{{#emitJSDoc}}/**
* The default API client implementation.
* @type {module:{{#invokerPackage}}{{invokerPackage}}/{{/invokerPackage}}ApiClient}
*/{{/emitJSDoc}}
ApiClient.instance = new ApiClient();
