http-proxy-middleware for koa2
npm install koa-http-proxy-serverbash
$ npm install koa-http-proxy-server --save
`Example
example with koa server
js
// include dependencies
const Koa=require('koa')
const {createProxyMiddleware} = require('koa-http-proxy-server');// proxy middleware options
const options = {
target: 'http://www.example.org', // target host
changeOrigin: true, // needed for virtual hosted sites
ws: true, // proxy websockets
pathRewrite: {
'^/api/old-path': '/api/new-path', // rewrite path
'^/api/remove/path': '/path', // remove base path
},
router: {
// when request.headers.host == 'dev.localhost:3000',
// override target 'http://www.example.org' to 'http://localhost:8000'
'dev.localhost:3000': 'http://localhost:8000',
},
};
// create the proxy (without context)
const exampleProxy = createProxyMiddleware('/api',options);
// mount
exampleProxy in web server
const app = new Koa();
app.use(exampleProxy);
app.listen(3000);
`Fix hung up with bodyParser
Currently the only pre-provided request interceptor is fixRequestBody, which is used to fix proxied POST requests when bodyParser is applied before this middleware.Example:
js
const bodyParser = require('koa-bodyparser');
const {createProxyMiddleware,fixRequestBody} = require('koa-http-proxy-server');const exampleProxy = createProxyMiddleware('/api',{
/**
* Fix bodyParser
**/
onProxyReq: fixRequestBody,
});
app.use(bodyParser())
.use(exampleProxy)
.listen(3000);
``