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showing results for - "http proxy middleware"
Matteo
05 Jan 2019
1'use strict';
2
3var express = require('express');
4var router = express.Router();
5
6var proxy_filter = function (path, req) {
7    return path.match('^/docs') && ( req.method === 'GET' || req.method === 'POST' );
8};
9
10var proxy_options = {
11    target: 'http://localhost:8080',
12    pathRewrite: {
13        '^/docs' : '/java/rep/server1' // Host path & target path conversion
14    },
15    onError(err, req, res) {
16        res.writeHead(500, {
17            'Content-Type': 'text/plain'
18        });
19        res.end('Something went wrong. And we are reporting a custom error message.' + err);
20    },
21    onProxyReq(proxyReq, req, res) {
22        if ( req.method == "POST" && req.body ) {
23            // Add req.body logic here if needed....
24
25           // ....
26
27            // Remove body-parser body object from the request
28            if ( req.body ) delete req.body;
29
30            // Make any needed POST parameter changes
31            let body = new Object();
32
33            body.filename = 'reports/statistics/summary_2016.pdf';
34            body.routeid = 's003b012d002';
35            body.authid = 'bac02c1d-258a-4177-9da6-862580154960';
36
37            // URI encode JSON object
38            body = Object.keys( body ).map(function( key ) {
39                return encodeURIComponent( key ) + '=' + encodeURIComponent( body[ key ])
40            }).join('&');
41
42            // Update header
43            proxyReq.setHeader( 'content-type', 'application/x-www-form-urlencoded' );
44            proxyReq.setHeader( 'content-length', body.length );
45
46            // Write out body changes to the proxyReq stream
47            proxyReq.write( body );
48            proxyReq.end();
49        }
50    }
51};
52
53// Proxy configuration
54var proxy = require( 'http-proxy-middleware' )( proxy_filter, proxy_options );
55
56/* GET home page. */
57router.get('/', function(req, res, next) {
58    res.render('index', { title: 'Node.js Express Proxy Test' });
59});
60
61router.all('/document', proxy );
62
63module.exports = router;
Kya
04 Nov 2020
1// TIPS AND TRICK CUSTOM PROXY IN WEBPACK DEV SERVER BY restuwahyu13
2//NOTE this method like using CRA in React
3
4// manual proxy before
5module.exports = {
6	devServer: {
7		open: true,
8		compress: true,
9		hot: true,
10		inline: true,
11		lazy: true,
12		contentBase: resolve(process.cwd(), 'build'),
13		port: process.env.PORT || 3000,
14		proxy: {
15          '/api/*', {
16          	target: 'http://localhost:3001',
17			secure: false,
18			changeOrigin: true,
19			headers: {
20				'Access-Control-Allow-Origin': '*',
21				'Access-Control-Allow-Credentials': '*',
22				'Access-Control-Allow-Methods': '*'
23			}
24          }
25        }
26		liveReload: false
27	}
28}
29
30// custom proxy after
31module.exports = {
32	devServer: {
33    open: true,
34    compress: true,
35    hot: true,
36    inline: true,
37    watchContentBase: true,
38    contentBase: resolve(process.cwd(), 'build'),
39    historyApiFallback: true,
40    before: (app, server, compiler) => {
41      const fileExist = existsSync('./src/setupProxy.js')
42      if (fileExist) {
43        const pathProxy = resolve(process.cwd(), 'src/setupProxy')
44        return require(`${pathProxy}`)(app)
45      }
46    },
47    port: process.env.PORT || 3000,
48    liveReload: false
49  }
50}
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