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Restream body before proxying (#1027)

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Support for bodyparser.json and bodyparser.urlencoded.

Fixes #955 #843 #791
This commit is contained in:
Mati B. Terefe 2016-08-12 01:37:32 +09:00 committed by Jarrett Cruger
parent 183b5bb4fc
commit d0e000e1f9
1 changed files with 22 additions and 17 deletions
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39
examples/middleware/bodyDecoder-middleware.js
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@ -34,28 +34,25 @@ var http = require('http'),
proxy = httpProxy.createProxyServer({});
//restreame
var restreamer = function (){
return function (req, res, next) { //restreame
req.removeAllListeners('data')
req.removeAllListeners('end')
next()
process.nextTick(function () {
if(req.body) {
req.emit('data', JSON.stringify(req.body))
}
req.emit('end')
})
//restream parsed body before proxying
proxy.on('proxyReq', function(proxyReq, req, res, options) {
if(req.body) {
let bodyData = JSON.stringify(req.body);
// incase if content-type is application/x-www-form-urlencoded -> we need to change to application/json
proxyReq.setHeader('Content-Type','application/json');
proxyReq.setHeader('Content-Length', Buffer.byteLength(bodyData));
// stream the content
proxyReq.write(bodyData);
}
}
});
//
// Basic Http Proxy Server
//
var app = connect()
.use(bodyParser.json())//json
.use(restreamer())//restreame
.use(bodyParser.json())//json parser
.use(bodyParser.urlencoded())//urlencoded parser
.use(function(req, res){
// modify body here,
// eg: req.body = {a: 1}.
@ -84,9 +81,17 @@ http.createServer(app1).listen(9013, function(){
//request to 8013 to proxy
request.post({//
url: 'http://127.0.0.1:8013',
json: {content: 123, type: "greeting"}
json: {content: 123, type: "greeting from json request"}
},function(err, res,data){
console.log('return:' ,err, data)
console.log('return for json request:' ,err, data)
})
// application/x-www-form-urlencoded request
request.post({//
url: 'http://127.0.0.1:8013',
form: {content: 123, type: "greeting from urlencoded request"}
},function(err, res,data){
console.log('return for urlencoded request:' ,err, data)
})
});