add: 支持fetch的超时配置

package.json

@@ -43,6 +43,7 @@
     "react-native": "^0.49.3",
     "react-native-code-push": "^5.1.3-beta",
     "react-native-device-info": "^0.12.1",
+    "react-native-fetch-polyfill": "^1.1.2",
     "react-navigation": "^1.0.0-beta.14",
     "react-redux": "^5.0.6",
     "redux-persist": "^4.10.1"

src/utils/delete.js

@@ -6,6 +6,7 @@ import { getToken } from './auth';
 import { checkStatus, normParams, parseObject } from './http-helper';
 
 const defaultOptions = {
+  timeout: 30 * 1000,
   headers: { Accept: 'application/json' },
 };
 

src/utils/polyfill.js

-/* eslint-disable prefer-destructuring */
-
-// noinspection JSUnresolvedVariable
-export const fetch = global.fetch;
+// eslint-disable-next-line global-require
+export const fetch = require('react-native-fetch-polyfill');

src/utils/post.js

@@ -7,6 +7,7 @@ import { getToken } from './auth';
 import { errors } from './error';
 
 const defaultOptions = {
+  timeout: 30 * 1000,
   headers: {
     Accept: 'application/json',
   },

src/utils/request.js

@@ -6,6 +6,7 @@ import { errors } from './error';
 import { checkStatus, normParams, parseObject } from './http-helper';
 
 const defaultOptions = {
+  timeout: 30 * 1000,
   headers: { Accept: 'application/json' },
 };