Thinks——进阶think-fetch的使用

think-fetch是Thinkjs提供的访问外部接口的模块，使用该模块可以很方便的访问外部接口同时做到同步。
相关连接：
https://github.com/thinkjs/think-fetch
https://thinkjs.org/zh-cn/doc/3.0/service.html

使用：

Install

$ npm install think-fetch --save
How to use

config file src/config/extend.js

const fetch = require('think-fetch');

module.exports = [
  fetch, // HTTP request client.
];
Methods in Controller

module.exports = class extends think.Controller {
  async indexAction () {

    // plain text or html
    const text = await this.fetch('https://github.com/').then(res => res.text());

    // json
    const json = await this.fetch('https://api.github.com/repos/thinkjs/think-fetch').then(res => res.json());

    // post
    const body = await this.fetch('http://httpbin.org/post', { method: 'POST', body: 'a=1' }).then(res => res.json());

    // stream
    const res = await this.fetch('https://assets-cdn.github.com/images/modules/logos_page/Octocat.png');
    const dest = fs.createWriteStream('./octocat.png');
    res.body.pipe(dest);

    // post with stream from file
    const stream = fs.createReadStream('input.txt');
    const result = this.fetch('http://httpbin.org/post', { method: 'POST', body: stream }).then(res => res.json());
  }
}

相比较使用http模块，这个更加方便。在这里做个记录。