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Axios 笔记

Axios 笔记

Axios是一个易用、简洁且高效的http库

主要功能特点包括：

  • 从浏览器中创建XMLHttpRequests
  • 从NodeJS创建Http请求
  • 支持Promise API（链式编程）
  • 拦截请求和响应
  • 转换请求数据和响应数据
  • 取消请求
  • 自动转换JSON数据
  • 客户端支持防御XSRF（跨站请求伪造）

官网: https://axios-http.com/
GitHub: GitHub-Axios

安装

  • 使用npm
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npm install axios
  • 使用bower
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bower install axios
  • 使用yarn
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yarn add axios
  • 使用CDN:
    jsDelivr:
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<script src="https://cdn.jsdelivr.net/npm/axios/dist/axios.min.js"></script>

unpkg

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<script src="https://unpkg.com/axios/dist/axios.min.js"></script>

使用

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const axios = require('axios').default;

发送一个GET请求

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const axios = require('axios');

// Make a request for a user with a given ID
axios.get('/user?ID=12345')
  .then(function (response) {
    // handle success
    console.log(response);
  })
  .catch(function (error) {
    // handle error
    console.log(error);
  })
  .then(function () {
    // always executed
  });

// Optionally the request above could also be done as
axios.get('/user', {
    params: {
      ID: 12345
    }
  })
  .then(function (response) {
    console.log(response);
  })
  .catch(function (error) {
    console.log(error);
  })
  .then(function () {
    // always executed
  });

// Want to use async/await? Add the `async` keyword to your outer function/method.
async function getUser() {
  try {
    const response = await axios.get('/user?ID=12345');
    console.log(response);
  } catch (error) {
    console.error(error);
  }
}

发送一个POST请求

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

处理并发请求

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function getUserAccount() {
  return axios.get('/user/12345');
}

function getUserPermissions() {
  return axios.get('/user/12345/permissions');
}

Promise.all([getUserAccount(), getUserPermissions()])
  .then(function (results) {
    const acct = results[0];
    const perm = results[1];
  });

Axios API

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

// axios(config)
// GET request for remote image in node.js
axios({
  method: 'get',
  url: 'http://bit.ly/2mTM3nY',
  responseType: 'stream'
})
  .then(function (response) {
    response.data.pipe(fs.createWriteStream('ada_lovelace.jpg'))
  });


// axios(url [, config])
// Send a GET request (default method)
axios('/user/12345');