CODEWITHSUNDEEP
javascriptnode.jshttpexpress
Andrey Viktor Kandauroff
Andrey Viktor Kandauroff

Reputation: 23

RangeError: Invalid status code: 0 node js

I'm stuck on this problem, see if anyone can help. I have this Node.js application and when I submit a form and go to the registration part I get this error:

RangeError: Invalid status code: 0
    at ServerResponse.writeHead (_http_server.js:192:11)
    at ServerResponse._implicitHeader (_http_server.js:157:8)
    at ServerResponse.OutgoingMessage.end (_http_outgoing.js:574:10)
    at ServerResponse.send (C:\projects\authentication\node_modules\express\lib\response.js:211:10)
    at ServerResponse.json (C:\projects\authentication\node_modules\express\lib\response.js:256:15)
    at C:\projects\authentication\app.js:24:7
    at Layer.handle_error (C:\projects\authentication\node_modules\express\lib\router\layer.js:71:5)
    at trim_prefix (C:\projects\authentication\node_modules\express\lib\router\index.js:315:13)
    at C:\projects\authentication\node_modules\express\lib\router\index.js:284:7
    at Function.process_params (C:\projects\authentication\node_modules\express\lib\router\index.js:335:12)

here is the app.js

var express = require('express');
var app = express();
var bodyParser = require('body-parser');

// include routes
var routes = require('./routes/router');
app.use('/', routes);
app.use('/register', routes);

// serve static files from /public
app.use(express.static(__dirname + '/template'));

// catch 404 and forward to error handler
app.use(function(req, res, next) {
  var err = new Error('File Not Found');
  err.status = 404;
  next(err);
});

// error handler
// define as the last app.use callback
app.use(function(err, req, res, next) {
  res.status(err.status || 500);
  res.json('error', {
    message: err.message,
    error: {}
  });
});

/////// JSON parser
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: false }));

app.use(function (req, res) {
  res.setHeader('Content-Type', 'text/plain');
  res.write('you posted:\n');
  res.end(JSON.stringify(req.body, null, 2));
});


// listen on port 3000 setting server
app.listen(3000, function () {
  console.log('Express app listening on port 3000');
});

to handle the http request I have a route.js file, which is like this:

var express = require('express');
var router = express.Router();
var path = require('path');


// GET /
router.get('/', function(req, res, next) {
   //res.setHeader('Content-type','text/plain');
   return res.sendFile(path.join(__dirname + "/../index.html"));
});

router.post('/register', function(req, res){

    //console.log(req.body);
    return res.send(req.body.email);
    /*
    if (req.body.email &&
      req.body.username &&
      req.body.password &&
      req.body.passwordConf) {
          var userData = {
            email: req.body.email,
            username: req.body.username,
            password: req.body.password,
            passwordConf: req.body.passwordConf
          };
  //use schema.create to insert data into the db
      User.create(userData, function (err, user) {
        if (err) {
          return next(err);
        } else {
          return res.redirect('/profile');
        }
      });
    }*/
});


module.exports = router;

when I try to access via get request on the root'/' it opens the html with a form, this form goes to '/register' so then I get the error, it's kind of weird how I get the html file fine via get on root but when I try to access '/register' I only get this error, already tried a lot of stuff and I can't what am I doing wrong, hope I can get some help.

HTML File

</head>
<body>
    <form action="/register" method="post">
        <div>
            <label for="email">email:</label>
            <input type="email" name="email" id="email" />
        </div>
        <div>
            <label for="username">username:</label>
            <input type="text" name="username" id="username" />
        </div>
        <div>
            <label for="password">password:</label>
            <textarea id="password" name="password"></textarea>
        </div>
        <div>
            <label for="passwordConf">password again:</label>
            <textarea name="passwordConf" id="passwordConf"></textarea>
        </div>
        <div class="button">
            <button type="submit">submit</button>
        </div>
    </form>
</body>
</html>

Upvotes: 0

Views: 5158

Answers (1)

robertklep
robertklep

Reputation: 203574

Take a look at the stack trace:

RangeError: Invalid status code: 0
    at ServerResponse.writeHead (_http_server.js:192:11)
    ...
    at C:\projects\authentication\app.js:24:7

Okay, so the error is caused on line 24 of app.js, which is this one:

  res.json('error', {
    message: err.message,
    error: {}
  });

Express is trying to interpret 'error' as a status code (because older versions of Express accepted res.json(status, obj), which has been deprecated), and because it's not something that looks like a number, internally this gets converted to the number "0", which is an invalid status code, hence the error.

I guess you meant this:

  res.json({
    message: err.message,
    error: {}
  });

EDIT: as for your other error, you need to make sure that the body-parser middleware is declared before your routes:

var bodyParser = require('body-parser');

/////// JSON parser
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: false }));

// include routes
var routes = require('./routes/router');
app.use('/', routes);
app.use('/register', routes);

Otherwise, requests will not be passed through that middleware before they hit your route handlers.

Upvotes: 5

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