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127 lines
2.4 KiB
Markdown
127 lines
2.4 KiB
Markdown
# Cookbook
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This cookbook contains recipes for some commonly requested features.
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In order to keep axios as lightweight as possible, it is often necessary to say no to feature requests. Many of these use cases can be supported by augmenting axios with other libraries.
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## Promise.prototype.done
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```bash
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> npm install axios promise --save
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```
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```js
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const axios = require('axios');
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require('promise/polyfill-done');
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axios
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.get('http://www.example.com/user')
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.then((response) => {
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console.log(response.data);
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return response;
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})
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.done();
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```
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## Promise.prototype.finally
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```bash
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> npm install axios promise.prototype.finally --save
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```
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```js
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const axios = require('axios');
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require('promise.prototype.finally').shim();
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axios
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.get('http://www.example.com/user')
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.then((response) => {
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console.log(response.data);
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return response;
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})
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.finally(() => {
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console.log('this will always be called');
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});
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```
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## Inflate/Deflate
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```bash
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> npm install axios pako --save
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```
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```js
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// client.js
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const axios = require('axios');
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const pako = require('pako');
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const user = {
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firstName: 'Fred',
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lastName: 'Flintstone'
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};
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const data = pako.deflate(JSON.stringify(user), { to: 'string' });
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axios
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.post('http://127.0.0.1:3333/user', data)
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.then((response) => {
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response.data = JSON.parse(pako.inflate(response.data, { to: 'string' }));
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console.log(response.data);
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return response;
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});
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```
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```js
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// server.js
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const pako = require('pako');
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const http = require('http');
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const url = require('url');
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const server = http.createServer((req, res) => {
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req.setEncoding('utf8');
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const parsed = url.parse(req.url, true);
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const pathname = parsed.pathname;
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if (pathname === '/user') {
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let data = '';
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req.on('data', (chunk) => {
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data += chunk;
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});
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req.on('end', () => {
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const user = JSON.parse(pako.inflate(data, { to: 'string' }));
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console.log(user);
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res.writeHead(200, {
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'Content-Type': 'application/json'
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});
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res.end(pako.deflate(JSON.stringify({result: 'success'}), { to: 'string' }));
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});
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} else {
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res.writeHead(404);
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res.end(pako.deflate(JSON.stringify({result: 'error'}), { to: 'string' }));
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}
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});
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server.listen(3333);
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```
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## JSONP
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```bash
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> npm install jsonp --save
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```
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```js
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const jsonp = require('jsonp');
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jsonp('http://www.example.com/foo', null, (err, data) => {
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if (err) {
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console.error(err.message);
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} else {
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console.log(data);
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}
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});
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```
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