Vue 进阶（三）：Axios 应用详解

$ bower install axios

$ npm install axios

{// `url` is the server URL that will be used for the requesturl: '/user',
// `method` is the request method to be used when making the requestmethod: 'get', // default
// `baseURL` will be prepended to `url` unless `url` is absolute. // It can be convenient to set `baseURL` for an instance of axios to pass relative URLs // to methods of that instance.baseURL: 'https://some-domain.com/api/',
// `transformRequest` allows changes to the request data before it is sent to the server// This is only applicable for request methods 'PUT', 'POST', and 'PATCH'// The last function in the array must return a string or an ArrayBuffertransformRequest: [function (data) {// Do whatever you want to transform the data
return data;}],
// `transformResponse` allows changes to the response data to be made before// it is passed to then/catchtransformResponse: [function (data) {// Do whatever you want to transform the data
return data;}],
// `headers` are custom headers to be sentheaders: {'X-Requested-With': 'XMLHttpRequest'},
// `params` are the URL parameters to be sent with the requestparams: {ID: 12345},
// `paramsSerializer` is an optional function in charge of serializing `params`// (e.g. https://www.npmjs.com/package/qs, http://api.jquery.com/jquery.param/)paramsSerializer: function(params) {return Qs.stringify(params, {arrayFormat: 'brackets'})},
// `data` is the data to be sent as the request body// Only applicable for request methods 'PUT', 'POST', and 'PATCH'// When no `transformRequest` is set, must be a string, an ArrayBuffer or a hashdata: {firstName: 'Fred'},
// `timeout` specifies the number of milliseconds before the request times out.// If the request takes longer than `timeout`, the request will be aborted.timeout: 1000,
// `withCredentials` indicates whether or not cross-site Access-Control requests// should be made using credentialswithCredentials: false, // default
// `adapter` allows custom handling of requests which makes testing easier.// Call `resolve` or `reject` and supply a valid response (see [response docs](#response-api)).adapter: function (resolve, reject, config) {/* ... */},
// `auth` indicates that HTTP Basic auth should be used, and supplies credentials.// This will set an `Authorization` header, overwriting any existing// `Authorization` custom headers you have set using `headers`.auth: {username: 'janedoe',password: 's00pers3cret'}
// `responseType` indicates the type of data that the server will respond with// options are 'arraybuffer', 'blob', 'document', 'json', 'text'responseType: 'json', // default
// `xsrfCookieName` is the name of the cookie to use as a value for xsrf tokenxsrfCookieName: 'XSRF-TOKEN', // default
// `xsrfHeaderName` is the name of the http header that carries the xsrf token valuexsrfHeaderName: 'X-XSRF-TOKEN', // default
// `progress` allows handling of progress events for 'POST' and 'PUT uploads'// as well as 'GET' downloadsprogress: function(progressEvent) {// Do whatever you want with the native progress event}}

{// `data` is the response that was provided by the serverdata: {},
// `status` is the HTTP status code from the server responsestatus: 200,
// `statusText` is the HTTP status message from the server responsestatusText: 'OK',
// `headers` the headers that the server responded withheaders: {},
// `config` is the config that was provided to `axios` for the requestconfig: {}}

axios.get('/user/12345')  .then(function(response) {    console.log(response.data);    console.log(response.status);    console.log(response.statusText);    console.log(response.headers);    console.log(response.config);});

// Make a request for a user with a given IDaxios.get('/user?ID=12345')   .then(function (response) {      console.log(response);      })   .catch(function (response) {      console.log(response);   });// Optionally the request above could also be done asaxios.get('/user', {   params: {      ID: 12345   }   })   .then(function (response) {      console.log(response);   })   .catch(function (response) {      console.log(response);   });

axios.post('/user', {    firstName: 'Fred',    lastName: 'Flintstone'})   .then(function (response) {      console.log(response);   })   .catch(function (response) {      console.log(response);   });

axios.all(iterable)axios.spread(callback)

function getUserAccount() {   return axios.get('/user/12345');}function getUserPermissions() {   return axios.get('/user/12345/permissions');}axios.all([getUserAccount(), getUserPermissions()])   .then(axios.spread(function (acct, perms) {      // Both requests are now complete   }));

axios(config)// Send a POST requestaxios({   method: 'post',   url: '/user/12345',   data: {      firstName: 'Fred',      lastName: 'Flintstone'   }});axios(url[, config])// Sned a GET request (default method)axios('/user/12345');

axios.get(url[, config])axios.delete(url[, config])axios.head(url[, config])axios.post(url[, data[, config]])axios.put(url[, data[, config]])axios.patch(url[, data[, config]])

axios.defaults.baseURL = 'https://api.example.com';axios.defaults.headers.common['Authorization'] = AUTH_TOKEN;axios.defaults.headers.post['Content-Type'] = 'application/x-www-form-urlencoded';

// Set config defaults when creating the instancevar instance = axios.create({  baseURL: 'https://api.example.com'});// Alter defaults after instance has been createdinstance.defaults.headers.common['Authorization'] = AUTH_TOKEN;

// Create an instance using the config defaults provided by the library// At this point the timeout config value is `0` as is the default for the libraryvar instance = axios.create();
// Override timeout default for the library// Now all requests will wait 2.5 seconds before timing outinstance.defaults.timeout = 2500;
// Override timeout for this request as it's known to take a long timeinstance.get('/longRequest', {timeout: 5000}); 

// 添加一个请求拦截器axios.interceptors.request.use(function (config) {   // Do something before request is sent   return config;}, function (error) {   // Do something with request error   return Promise.reject(error);});
// 添加一个响应拦截器axios.interceptors.response.use(function (response) {   // Do something with response data   return response;}, function (error) {   // Do something with response error   return Promise.reject(error);});

var myInterceptor = axios.interceptors.request.use(function () {/*...*/});axios.interceptors.request.eject(myInterceptor);

var instance = axios.create();instance.interceptors.request.use(function () {/*...*/});

axios.get('/user/12345')   .catch(function (response) {      if (response instanceof Error) {         // Something happened in setting up the request that triggered an Error         console.log('Error', response.message);    } else {    // The request was made, but the server responded with a status code    // that falls out of the range of 2xx       console.log(response.data);       console.log(response.status);       console.log(response.headers);       console.log(response.config);    }});

/// <reference path="axios.d.ts" />import * as axios from 'axios';axios.get('/user?ID=12345');