Axios.js 7.3 KB

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  1. 'use strict';
  2. import utils from '../utils.js';
  3. import buildURL from '../helpers/buildURL.js';
  4. import InterceptorManager from './InterceptorManager.js';
  5. import dispatchRequest from './dispatchRequest.js';
  6. import mergeConfig from './mergeConfig.js';
  7. import buildFullPath from './buildFullPath.js';
  8. import validator from '../helpers/validator.js';
  9. import AxiosHeaders from './AxiosHeaders.js';
  10. import transitionalDefaults from '../defaults/transitional.js';
  11. const validators = validator.validators;
  12. /**
  13. * Create a new instance of Axios
  14. *
  15. * @param {Object} instanceConfig The default config for the instance
  16. *
  17. * @return {Axios} A new instance of Axios
  18. */
  19. class Axios {
  20. constructor(instanceConfig) {
  21. this.defaults = instanceConfig || {};
  22. this.interceptors = {
  23. request: new InterceptorManager(),
  24. response: new InterceptorManager(),
  25. };
  26. }
  27. /**
  28. * Dispatch a request
  29. *
  30. * @param {String|Object} configOrUrl The config specific for this request (merged with this.defaults)
  31. * @param {?Object} config
  32. *
  33. * @returns {Promise} The Promise to be fulfilled
  34. */
  35. async request(configOrUrl, config) {
  36. try {
  37. return await this._request(configOrUrl, config);
  38. } catch (err) {
  39. if (err instanceof Error) {
  40. let dummy = {};
  41. Error.captureStackTrace ? Error.captureStackTrace(dummy) : (dummy = new Error());
  42. // slice off the Error: ... line
  43. const stack = dummy.stack ? dummy.stack.replace(/^.+\n/, '') : '';
  44. try {
  45. if (!err.stack) {
  46. err.stack = stack;
  47. // match without the 2 top stack lines
  48. } else if (stack && !String(err.stack).endsWith(stack.replace(/^.+\n.+\n/, ''))) {
  49. err.stack += '\n' + stack;
  50. }
  51. } catch (e) {
  52. // ignore the case where "stack" is an un-writable property
  53. }
  54. }
  55. throw err;
  56. }
  57. }
  58. _request(configOrUrl, config) {
  59. /*eslint no-param-reassign:0*/
  60. // Allow for axios('example/url'[, config]) a la fetch API
  61. if (typeof configOrUrl === 'string') {
  62. config = config || {};
  63. config.url = configOrUrl;
  64. } else {
  65. config = configOrUrl || {};
  66. }
  67. config = mergeConfig(this.defaults, config);
  68. const { transitional, paramsSerializer, headers } = config;
  69. if (transitional !== undefined) {
  70. validator.assertOptions(
  71. transitional,
  72. {
  73. silentJSONParsing: validators.transitional(validators.boolean),
  74. forcedJSONParsing: validators.transitional(validators.boolean),
  75. clarifyTimeoutError: validators.transitional(validators.boolean),
  76. legacyInterceptorReqResOrdering: validators.transitional(validators.boolean),
  77. },
  78. false
  79. );
  80. }
  81. if (paramsSerializer != null) {
  82. if (utils.isFunction(paramsSerializer)) {
  83. config.paramsSerializer = {
  84. serialize: paramsSerializer,
  85. };
  86. } else {
  87. validator.assertOptions(
  88. paramsSerializer,
  89. {
  90. encode: validators.function,
  91. serialize: validators.function,
  92. },
  93. true
  94. );
  95. }
  96. }
  97. // Set config.allowAbsoluteUrls
  98. if (config.allowAbsoluteUrls !== undefined) {
  99. // do nothing
  100. } else if (this.defaults.allowAbsoluteUrls !== undefined) {
  101. config.allowAbsoluteUrls = this.defaults.allowAbsoluteUrls;
  102. } else {
  103. config.allowAbsoluteUrls = true;
  104. }
  105. validator.assertOptions(
  106. config,
  107. {
  108. baseUrl: validators.spelling('baseURL'),
  109. withXsrfToken: validators.spelling('withXSRFToken'),
  110. },
  111. true
  112. );
  113. // Set config.method
  114. config.method = (config.method || this.defaults.method || 'get').toLowerCase();
  115. // Flatten headers
  116. let contextHeaders = headers && utils.merge(headers.common, headers[config.method]);
  117. headers &&
  118. utils.forEach(['delete', 'get', 'head', 'post', 'put', 'patch', 'common'], (method) => {
  119. delete headers[method];
  120. });
  121. config.headers = AxiosHeaders.concat(contextHeaders, headers);
  122. // filter out skipped interceptors
  123. const requestInterceptorChain = [];
  124. let synchronousRequestInterceptors = true;
  125. this.interceptors.request.forEach(function unshiftRequestInterceptors(interceptor) {
  126. if (typeof interceptor.runWhen === 'function' && interceptor.runWhen(config) === false) {
  127. return;
  128. }
  129. synchronousRequestInterceptors = synchronousRequestInterceptors && interceptor.synchronous;
  130. const transitional = config.transitional || transitionalDefaults;
  131. const legacyInterceptorReqResOrdering =
  132. transitional && transitional.legacyInterceptorReqResOrdering;
  133. if (legacyInterceptorReqResOrdering) {
  134. requestInterceptorChain.unshift(interceptor.fulfilled, interceptor.rejected);
  135. } else {
  136. requestInterceptorChain.push(interceptor.fulfilled, interceptor.rejected);
  137. }
  138. });
  139. const responseInterceptorChain = [];
  140. this.interceptors.response.forEach(function pushResponseInterceptors(interceptor) {
  141. responseInterceptorChain.push(interceptor.fulfilled, interceptor.rejected);
  142. });
  143. let promise;
  144. let i = 0;
  145. let len;
  146. if (!synchronousRequestInterceptors) {
  147. const chain = [dispatchRequest.bind(this), undefined];
  148. chain.unshift(...requestInterceptorChain);
  149. chain.push(...responseInterceptorChain);
  150. len = chain.length;
  151. promise = Promise.resolve(config);
  152. while (i < len) {
  153. promise = promise.then(chain[i++], chain[i++]);
  154. }
  155. return promise;
  156. }
  157. len = requestInterceptorChain.length;
  158. let newConfig = config;
  159. while (i < len) {
  160. const onFulfilled = requestInterceptorChain[i++];
  161. const onRejected = requestInterceptorChain[i++];
  162. try {
  163. newConfig = onFulfilled(newConfig);
  164. } catch (error) {
  165. onRejected.call(this, error);
  166. break;
  167. }
  168. }
  169. try {
  170. promise = dispatchRequest.call(this, newConfig);
  171. } catch (error) {
  172. return Promise.reject(error);
  173. }
  174. i = 0;
  175. len = responseInterceptorChain.length;
  176. while (i < len) {
  177. promise = promise.then(responseInterceptorChain[i++], responseInterceptorChain[i++]);
  178. }
  179. return promise;
  180. }
  181. getUri(config) {
  182. config = mergeConfig(this.defaults, config);
  183. const fullPath = buildFullPath(config.baseURL, config.url, config.allowAbsoluteUrls);
  184. return buildURL(fullPath, config.params, config.paramsSerializer);
  185. }
  186. }
  187. // Provide aliases for supported request methods
  188. utils.forEach(['delete', 'get', 'head', 'options'], function forEachMethodNoData(method) {
  189. /*eslint func-names:0*/
  190. Axios.prototype[method] = function (url, config) {
  191. return this.request(
  192. mergeConfig(config || {}, {
  193. method,
  194. url,
  195. data: (config || {}).data,
  196. })
  197. );
  198. };
  199. });
  200. utils.forEach(['post', 'put', 'patch'], function forEachMethodWithData(method) {
  201. /*eslint func-names:0*/
  202. function generateHTTPMethod(isForm) {
  203. return function httpMethod(url, data, config) {
  204. return this.request(
  205. mergeConfig(config || {}, {
  206. method,
  207. headers: isForm
  208. ? {
  209. 'Content-Type': 'multipart/form-data',
  210. }
  211. : {},
  212. url,
  213. data,
  214. })
  215. );
  216. };
  217. }
  218. Axios.prototype[method] = generateHTTPMethod();
  219. Axios.prototype[method + 'Form'] = generateHTTPMethod(true);
  220. });
  221. export default Axios;