从NodeJS到Node / Express的安全POST请求挂起

Question

I'm using the following to send POST data to a secure nodejs server:

File: main.js

    var strdata = JSON.stringify({"data":"thisdata"});

    var options = {
        host: '192.168.1.63',
        port: 3001,
        path: '/saveconfig',
        method: 'POST',
        rejectUnauthorized: false,
        requestCert: true,
        agent: false,

        headers: {
            'Content-Type': 'application/x-www-form-urlencoded',
            'Content-Length': Buffer.byteLength(strdata)
        }   

    };


    var req = https.request(options, function(res) {
        console.log('STATUS: ' + res.statusCode);
        console.log('HEADERS: ' + JSON.stringify(res.headers));
        res.setEncoding('utf8');
        res.on('data', function (chunk) {
            console.log('BODY: ' + chunk);
        });
    });

    console.log(req.write(strdata));
    console.log(req.end());

    req.on('error', function(e) {
        console.log('problem with request: ' + e.message);
    });

    req.on('finish', function() {
        console.log("finished request");
    });

In an otherwise functional expressjs server, these are the appropriate snippets:

File: app.js

app.post('/saveconfig', function() { 
    data.saveconfig; console.log("received request"); } );

app.get('/getconfig', data.getconfig);

File: data.js

exports.saveconfig = function(req, res) {
console.log("saveing config");

res.send(200);
res.end();

};

exports.getconfig = function(req, res) {
res.send("get OK");
}

With app.js running on the server (Ubuntu), I run main.js from the client (Windows 7). req.write and req.end execute and "finished request" logs to the console, but the request callback never fires.

On the server in app.js, the app.post event fires and logs "received request" to the console. But "saving config" never logs to the console. Only after I kill (^C) main.js, express then logs to the console "POST /saveconfig".

I know I'm missing something simple, but I've read dozens of coding examples and you can likely gather from my snippet, I've tried everything I can find or think of. I'd guess the request isn't finishing, but I don't know why. What is missing to get "exports.saveconfig" to fire?

additional information

The answer posted below fixed my problem. Because I'm new to stackoverflow, I can't post my own answer, but here's the rest of the story...

I appreciate your help. Being still new to JavaScript, I found I can learn a lot about an object by converting it to string. I was originally attempting to convert the req parameter to a string using a custom function . I just discovered it was apparently running into an endless loop after using JSON.stringify instead.

The code looked something like this:

exports.saveconfig = function (db) {
    return function(req, res) {
        console.log("saving config");

        console.log(mymodule.serialize(req));

        res.end("OK");

        console.log(req.body);
   };
};

I would have thought the above code should have logged the following to the console- even if the serialize method was in an endless loop:

POST /saveconfig

saving config

[nothing because of the endless loop]

Instead I got:

saving config

connections property is deprecated. Use getConnections() method

Being new to JavaScript, I assumed something was wrong with the request, the server, or some plumbing in-between. Of course, then the debugging code I added (along with my ignorance of JS) compounded the problem.

Changing

app.post('/saveconfig', function() { 
data.saveconfig; console.log("received request"); } );

to

app.post('/saveconfig', datarts.saveconfig);

and removing the endless loop fixed the problem.

Answer 1

The problem is in you're app.js. You use data.saveConfig inside your callback without calling it. The right way would be

app.post('/saveconfig', function(req,res) { 
    data.saveconfig(req, res); 
    console.log("received request"); 
});

app.get('/getconfig', data.getconfig);

or (I assume the console.log is just for debugging purposes):

app.post('/saveconfig', data.saveconfig);

app.get('/getconfig', data.getconfig);

You could do your console.log() inside your data.saveconfig method if you want to go with the second example.