user2171796 user2171796 - 2 months ago 8
Node.js Question

Where did the information I passed in go?

I have this node http server.

/**
* Module dependencies.
*/

var http = require('http'),
fs = require('fs'),
cycle = require('./cycle.js');

/**
* Create the server.
*/

var server = http.createServer(function (req, resp) {
console.log(JSON.decycle(req) );
if ('GET' === req.method && '/images' === req.url.substr(0, 7) &&
'.jpg' === req.url.substr(-4) ) {
fs.stat(__dirname + req.url, function (err, stat) {
if (err || !stat.isFile() ) {
res.writeHead(404);
res.end('Not Found');
return;
}
serve(__dirname + req.url, 'application/jpg');
});
} else if ('GET' === req.method && '/' === req.url) {
serve(__dirname + '/index.html', 'text/html');
} else {
resp.writeHead(404);
resp.end('Not found');
}

function serve(path, type) {
resp.writeHead(200, {'Content-Type': type});
fs.createReadStream(path).pipe(resp);
}
});

/**
* Listen.
*/

server.listen(3000);


(It uses Crockford's object-printing utility. https://github.com/douglascrockford/JSON-js/blob/master/cycle.js)

When I hit it with this request, the information items I passed in don't appear in the request. Why not?

RickH$ curl -X POST -H "Content-Type: application/x-www-form-urlencoded" -H "Cache-Control: no-cache" -H "Postman-Token: 647062e3-bd38-edf0-3b3a-e56227daf94c" -d '&first_name=James&last_name=Taylor&city=Urbana&state=Illinois' "localhost:3000"
RickH$


This is a boiled down version of a larger project. In the larger project, the request is piped to another server, which reacts based on the contents of the request. So I feel that I know the content is getting through. But where is it?

Later----------------

/*********
Version 2 of server callback function. This one shows the full request body.
var server = http.createServer(function (req, resp) {
console.log();
console.log('=========================%==========================');
console.log();
console.log(JSON.decycle(req) );

req.rawBody = '';
req.setEncoding('utf8');

req.on('data', function (chunk) {
req.rawBody += chunk;
// next();
});

req.on('end', function () {
console.log();
console.log('~~~~~~~~~~~~~~~~~~~~~~~~~+~~~~~~~~~~~~~~~~~~~~~~~~~~');
console.log();
console.log(JSON.decycle(req) );
// next();
});

if ('GET' === req.method && '/images' === req.url.substr(0, 7) &&
'.jpg' === req.url.substr(-4) ) {
fs.stat(__dirname + req.url, function (err, stat) {
if (err || !stat.isFile() ) {
res.writeHead(404);
res.end('Not Found');
return;
}
serve(__dirname + req.url, 'application/jpg');
});
} else if ('GET' === req.method && '/' === req.url) {
serve(__dirname + '/index.html', 'text/html');
} else {
resp.writeHead(404);
resp.end('Not found');
}

function serve(path, type) {
resp.writeHead(200, {'Content-Type': type});
fs.createReadStream(path).pipe(resp);
}
});
*********/

Answer

You need following code to get body(your information) of request

var data;
req.on('data', function(chunk){
    data += chunk;
});
req.on('end', function(){
     console.log(data);
});
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