人民医院前端

request.js 11KB

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  1. /**
  2. * Request 1.0.6
  3. * @Class Request
  4. * @description luch-request 1.0.6 http请求插件
  5. * @Author lu-ch
  6. * @Date 2020-03-17
  7. * @Email webwork.s@qq.com
  8. * http://ext.dcloud.net.cn/plugin?id=392
  9. */
  10. export default class Request {
  11. config = {
  12. baseUrl: '',
  13. header: {
  14. 'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8',
  15. },
  16. method: 'GET',
  17. dataType: 'json',
  18. // #ifndef MP-ALIPAY || APP-PLUS
  19. responseType: 'text',
  20. // #endif
  21. custom: {},
  22. // #ifdef MP-ALIPAY
  23. timeout: 30000,
  24. // #endif
  25. // #ifdef APP-PLUS
  26. sslVerify: true
  27. // #endif
  28. };
  29. static posUrl(url) {
  30. /* 判断url是否为绝对路径 */
  31. return /(http|https):\/\/([\w.]+\/?)\S*/.test(url);
  32. }
  33. static mergeUrl(url, baseUrl, params) {
  34. let mergeUrl = Request.posUrl(url) ? url : `${baseUrl}${url}`;
  35. if (Object.keys(params).length !== 0) {
  36. const paramsH = Request.addQueryString(params);
  37. mergeUrl += mergeUrl.includes('?') ? `&${paramsH}` : `?${paramsH}`;
  38. }
  39. return mergeUrl;
  40. }
  41. static addQueryString(params) {
  42. let paramsData = '';
  43. Object.keys(params).forEach(function(key) {
  44. paramsData += key + '=' + encodeURIComponent(params[key]) + '&';
  45. });
  46. return paramsData.substring(0, paramsData.length - 1);
  47. }
  48. /**
  49. * @property {Function} request 请求拦截器
  50. * @property {Function} response 响应拦截器
  51. * @type {{request: Request.interceptor.request, response: Request.interceptor.response}}
  52. */
  53. interceptor = {
  54. /**
  55. * @param {Request~requestCallback} cb - 请求之前拦截,接收一个函数(config, cancel)=> {return config}。第一个参数为全局config,第二个参数为函数,调用则取消本次请求。
  56. */
  57. request: cb => {
  58. if (cb) {
  59. this.requestBeforeFun = cb;
  60. }
  61. },
  62. /**
  63. * @param {Request~responseCallback} cb 响应拦截器,对响应数据做点什么
  64. * @param {Request~responseErrCallback} ecb 响应拦截器,对响应错误做点什么
  65. */
  66. response: (cb, ecb) => {
  67. if (cb) {
  68. this.requestComFun = cb;
  69. }
  70. if (ecb) {
  71. this.requestComFail = ecb;
  72. }
  73. }
  74. };
  75. requestBeforeFun(config) {
  76. return config;
  77. }
  78. requestComFun(response) {
  79. return response;
  80. }
  81. requestComFail(response) {
  82. return response;
  83. }
  84. /**
  85. * 自定义验证器,如果返回true 则进入响应拦截器的响应成功函数(resolve),否则进入响应拦截器的响应错误函数(reject)
  86. * @param { Number } statusCode - 请求响应体statusCode(只读)
  87. * @return { Boolean } 如果为true,则 resolve, 否则 reject
  88. */
  89. validateStatus(statusCode) {
  90. return statusCode === 200;
  91. }
  92. /**
  93. * @Function
  94. * @param {Request~setConfigCallback} f - 设置全局默认配置
  95. */
  96. setConfig(f) {
  97. this.config = f(this.config);
  98. }
  99. /**
  100. * @Function
  101. * @param {Object} options - 请求配置项
  102. * @prop {String} options.url - 请求路径
  103. * @prop {Object} options.data - 请求参数
  104. * @prop {Object} [options.responseType = config.responseType] [text|arraybuffer] - 响应的数据类型
  105. * @prop {Object} [options.dataType = config.dataType] - 如果设为 json,会尝试对返回的数据做一次 JSON.parse
  106. * @prop {Object} [options.header = config.header] - 请求header
  107. * @prop {Object} [options.method = config.method] - 请求方法
  108. * @returns {Promise<unknown>}
  109. */
  110. async request(options = {}) {
  111. options.baseUrl = this.config.baseUrl;
  112. options.dataType = options.dataType || this.config.dataType;
  113. // #ifndef MP-ALIPAY || APP-PLUS
  114. options.responseType = options.responseType || this.config.responseType;
  115. // #endif
  116. // #ifdef MP-ALIPAY
  117. options.timeout = options.timeout || this.config.timeout;
  118. // #endif
  119. options.url = options.url || '';
  120. options.data = options.data || {};
  121. options.params = options.params || {};
  122. options.header = options.header || this.config.header;
  123. options.method = options.method || this.config.method;
  124. options.custom = { ...this.config.custom, ...(options.custom || {}) };
  125. // #ifdef APP-PLUS
  126. options.sslVerify =
  127. options.sslVerify === undefined
  128. ? this.config.sslVerify
  129. : options.sslVerify;
  130. // #endif
  131. options.getTask = options.getTask || this.config.getTask;
  132. return new Promise((resolve, reject) => {
  133. let next = true;
  134. const cancel = (t = 'handle cancel', config = options) => {
  135. const err = {
  136. errMsg: t,
  137. config: config
  138. };
  139. reject(err);
  140. next = false;
  141. };
  142. const handleRe = { ...this.requestBeforeFun(options, cancel) };
  143. const _config = { ...handleRe };
  144. if (!next) return;
  145. const requestTask = uni.request({
  146. url: Request.mergeUrl(_config.url, _config.baseUrl, _config.params),
  147. data: _config.data,
  148. header: _config.header,
  149. method: _config.method,
  150. // #ifdef MP-ALIPAY
  151. timeout: _config.timeout,
  152. // #endif
  153. dataType: _config.dataType,
  154. // #ifndef MP-ALIPAY || APP-PLUS
  155. responseType: _config.responseType,
  156. // #endif
  157. // #ifdef APP-PLUS
  158. // sslVerify: _config.sslVerify,
  159. sslVerify: false,
  160. // #endif
  161. complete: response => {
  162. response.config = handleRe;
  163. if (this.validateStatus(response.statusCode)) {
  164. // 成功
  165. // console.log(response)
  166. response = this.requestComFun(response);
  167. resolve(response);
  168. } else {
  169. response = this.requestComFail(response);
  170. reject(response);
  171. }
  172. }
  173. });
  174. if (handleRe.getTask) {
  175. handleRe.getTask(requestTask, handleRe);
  176. }
  177. });
  178. }
  179. get(url, params = {}) {
  180. const options = {};
  181. options.params = params;
  182. return this.request({
  183. url,
  184. method: 'GET',
  185. ...options
  186. });
  187. }
  188. post(url, data, options = {}) {
  189. return this.request({
  190. url,
  191. data,
  192. method: 'POST',
  193. ...options
  194. });
  195. }
  196. postJson(url, data, options = {}) {
  197. return this.request({
  198. url,
  199. data,
  200. method: 'POST',
  201. ...options
  202. });
  203. }
  204. // #ifndef MP-ALIPAY
  205. put(url, data, options = {}) {
  206. return this.request({
  207. url,
  208. data,
  209. method: 'PUT',
  210. ...options
  211. });
  212. }
  213. // #endif
  214. // #ifdef APP-PLUS || H5 || MP-WEIXIN || MP-BAIDU
  215. delete(url, data, options = {}) {
  216. return this.request({
  217. url,
  218. data,
  219. method: 'DELETE',
  220. ...options
  221. });
  222. }
  223. // #endif
  224. // #ifdef APP-PLUS || H5 || MP-WEIXIN
  225. connect(url, data, options = {}) {
  226. return this.request({
  227. url,
  228. data,
  229. method: 'CONNECT',
  230. ...options
  231. });
  232. }
  233. // #endif
  234. // #ifdef APP-PLUS || H5 || MP-WEIXIN || MP-BAIDU
  235. head(url, data, options = {}) {
  236. return this.request({
  237. url,
  238. data,
  239. method: 'HEAD',
  240. ...options
  241. });
  242. }
  243. // #endif
  244. // #ifdef APP-PLUS || H5 || MP-WEIXIN || MP-BAIDU
  245. options(url, data, options = {}) {
  246. return this.request({
  247. url,
  248. data,
  249. method: 'OPTIONS',
  250. ...options
  251. });
  252. }
  253. // #endif
  254. // #ifdef APP-PLUS || H5 || MP-WEIXIN
  255. trace(url, data, options = {}) {
  256. return this.request({
  257. url,
  258. data,
  259. method: 'TRACE',
  260. ...options
  261. });
  262. }
  263. // #endif
  264. upload(
  265. url,
  266. {
  267. // #ifdef APP-PLUS
  268. files,
  269. // #endif
  270. // #ifdef MP-ALIPAY
  271. fileType,
  272. // #endif
  273. filePath,
  274. name,
  275. header,
  276. formData = {},
  277. custom = {},
  278. params = {},
  279. getTask
  280. }
  281. ) {
  282. return new Promise((resolve, reject) => {
  283. let next = true;
  284. const globalHeader = { ...this.config.header };
  285. delete globalHeader['content-type'];
  286. delete globalHeader['Content-Type'];
  287. const pubConfig = {
  288. baseUrl: this.config.baseUrl,
  289. url,
  290. // #ifdef MP-ALIPAY
  291. fileType,
  292. // #endif
  293. filePath,
  294. method: 'UPLOAD',
  295. name,
  296. header: header || globalHeader,
  297. formData,
  298. params,
  299. custom: { ...this.config.custom, ...custom },
  300. getTask: getTask || this.config.getTask
  301. };
  302. // #ifdef APP-PLUS
  303. if (files) {
  304. pubConfig.files = files;
  305. }
  306. // #endif
  307. const cancel = (t = 'handle cancel', config = pubConfig) => {
  308. const err = {
  309. errMsg: t,
  310. config: config
  311. };
  312. reject(err);
  313. next = false;
  314. };
  315. const handleRe = { ...this.requestBeforeFun(pubConfig, cancel) };
  316. const _config = {
  317. url: Request.mergeUrl(handleRe.url, handleRe.baseUrl, handleRe.params),
  318. // #ifdef MP-ALIPAY
  319. fileType: handleRe.fileType,
  320. // #endif
  321. filePath: handleRe.filePath,
  322. name: handleRe.name,
  323. formData: handleRe.formData,
  324. complete: response => {
  325. response.config = handleRe;
  326. if (typeof response.data === 'string') {
  327. response.data = JSON.parse(response.data);
  328. }
  329. if (this.validateStatus(response.statusCode)) {
  330. // 成功
  331. response = this.requestComFun(response);
  332. resolve(response);
  333. } else {
  334. response = this.requestComFail(response);
  335. reject(response);
  336. }
  337. }
  338. };
  339. // #ifdef APP-PLUS
  340. if (handleRe.files) {
  341. _config.files = handleRe.files;
  342. }
  343. // #endif
  344. if (!next) return;
  345. const requestTask = uni.uploadFile(_config);
  346. if (handleRe.getTask) {
  347. handleRe.getTask(requestTask, handleRe);
  348. }
  349. });
  350. }
  351. download(url, options = {}) {
  352. return new Promise((resolve, reject) => {
  353. let next = true;
  354. const pubConfig = {
  355. baseUrl: this.config.baseUrl,
  356. url,
  357. method: 'DOWNLOAD',
  358. header: options.header || this.config.header,
  359. params: options.params || {},
  360. custom: { ...this.config.custom, ...(options.custom || {}) },
  361. getTask: options.getTask || this.config.getTask
  362. };
  363. const cancel = (t = 'handle cancel', config = pubConfig) => {
  364. const err = {
  365. errMsg: t,
  366. config: config
  367. };
  368. reject(err);
  369. next = false;
  370. };
  371. const handleRe = { ...this.requestBeforeFun(pubConfig, cancel) };
  372. if (!next) return;
  373. const requestTask = uni.downloadFile({
  374. url: Request.mergeUrl(handleRe.url, handleRe.baseUrl, handleRe.params),
  375. header: handleRe.header,
  376. complete: response => {
  377. response.config = handleRe;
  378. if (this.validateStatus(response.statusCode)) {
  379. // 成功
  380. response = this.requestComFun(response);
  381. resolve(response);
  382. } else {
  383. response = this.requestComFail(response);
  384. reject(response);
  385. }
  386. }
  387. });
  388. if (handleRe.getTask) {
  389. handleRe.getTask(requestTask, handleRe);
  390. }
  391. });
  392. }
  393. }
  394. /**
  395. * setConfig回调
  396. * @return {Object} - 返回操作后的config
  397. * @callback Request~setConfigCallback
  398. * @param {Object} config - 全局默认config
  399. */
  400. /**
  401. * 请求拦截器回调
  402. * @return {Object} - 返回操作后的config
  403. * @callback Request~requestCallback
  404. * @param {Object} config - 全局config
  405. * @param {Function} [cancel] - 取消请求钩子,调用会取消本次请求
  406. */
  407. /**
  408. * 响应拦截器回调
  409. * @return {Object} - 返回操作后的response
  410. * @callback Request~responseCallback
  411. * @param {Object} response - 请求结果 response
  412. */
  413. /**
  414. * 响应错误拦截器回调
  415. * @return {Object} - 返回操作后的response
  416. * @callback Request~responseErrCallback
  417. * @param {Object} response - 请求结果 response
  418. */