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- import fetch from 'dva/fetch';
- import { notification } from 'antd';
- import { routerRedux } from 'dva/router';
- import store from '../index';
-
- const codeMessage = {
- 200: '服务器成功返回请求的数据。',
- 201: '新建或修改数据成功。',
- 202: '一个请求已经进入后台排队(异步任务)。',
- 204: '删除数据成功。',
- 400: '发出的请求有错误,服务器没有进行新建或修改数据的操作。',
- 401: '用户没有权限(令牌、用户名、密码错误)。',
- 403: '用户得到授权,但是访问是被禁止的。',
- 404: '发出的请求针对的是不存在的记录,服务器没有进行操作。',
- 406: '请求的格式不可得。',
- 410: '请求的资源被永久删除,且不会再得到的。',
- 422: '当创建一个对象时,发生一个验证错误。',
- 500: '服务器发生错误,请检查服务器。',
- 502: '网关错误。',
- 503: '服务不可用,服务器暂时过载或维护。',
- 504: '网关超时。',
- };
- function checkStatus(response) {
- if (response.status >= 200 && response.status < 300) {
- return response;
- }
- const errortext = codeMessage[response.status] || response.statusText;
- notification.error({
- message: `请求错误 ${response.status}: ${response.url}`,
- description: errortext,
- });
- const error = new Error(errortext);
- error.name = response.status;
- error.response = response;
- throw error;
- }
-
- /**
- * Requests a URL, returning a promise.
- *
- * @param {string} url The URL we want to request
- * @param {object} [options] The options we want to pass to "fetch"
- * @return {object} An object containing either "data" or "err"
- */
- export default function request(url, options) {
- const defaultOptions = {
- credentials: 'include',
- };
- const newOptions = { ...defaultOptions, ...options };
- if (newOptions.method === 'POST' || newOptions.method === 'PUT') {
- if (!(newOptions.body instanceof FormData)) {
- newOptions.headers = {
- Accept: 'application/json',
- 'Content-Type': 'application/json; charset=utf-8',
- ...newOptions.headers,
- };
- newOptions.body = JSON.stringify(newOptions.body);
- } else {
- // newOptions.body is FormData
- newOptions.headers = {
- Accept: 'application/json',
- ...newOptions.headers,
- };
- }
- }
-
- return fetch(url, newOptions)
- .then(checkStatus)
- .then(response => {
- if (newOptions.method === 'DELETE' || response.status === 204) {
- return response.text();
- }
- return response.json();
- })
- .catch(e => {
- const { dispatch } = store;
- const status = e.name;
- if (status === 401) {
- dispatch({
- type: 'login/logout',
- });
- return;
- }
- if (status === 403) {
- dispatch(routerRedux.push('/exception/403'));
- return;
- }
- if (status <= 504 && status >= 500) {
- dispatch(routerRedux.push('/exception/500'));
- return;
- }
- if (status >= 404 && status < 422) {
- dispatch(routerRedux.push('/exception/404'));
- }
- });
- }
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