Uncaught TypeError: net.createConnection is not a function

[limone-eth]

I'm trying to create a script which inserts data on my MongoDB collection when I submit an HTML form.
So I'm using browserify to use node module 'mongodb', but my bundle.js file (generated with browserify) throws this error on my browser:

bundle.js:8695 Uncaught TypeError: net.createConnection is not a function
    at Connection.connect (bundle.js:8695)
    at Pool.connect (bundle.js:9929)
    at Server.connect (bundle.js:16913)
    at Server.connect (bundle.js:35356)
    at createServer (bundle.js:33747)
    at bundle.js:33977
    at parseHandler (bundle.js:36014)
    at module.exports (bundle.js:35916)
    at connect (bundle.js:33938)
    at connectOp (bundle.js:33323)

I have a script.js that require('mongodb'), so I used this cmd line:
browserify -r mongodb script.js -o bundle.js

Any suggestion?

[goto-bus-stop]

the net module is not available with browserify because it does low-level networking, which is not possible in the browser. as a result mongodb can't be accessed directly from a browser. (direct access could also be unsafe, since javascript-savvy users might be able to change the query the form executes to something that eg. deletes the entire database.)

one way to approach this would be to create a node server that connects to mongodb, and exposes an HTTP API using something like express. then your client-side script could submit the form data to that HTTP API, which in turn would insert the data into mongodb.

[limone-eth]

Do you mean something like this?

`var express = require('express');
var path = require('path');
var bodyParser = require('body-parser');
var mongodb = require('mongodb');

var dbConn = mongodb.MongoClient.connect('mongodb://localhost:27017');

var app = express();
console.log("Connection Success");
app.use(bodyParser.urlencoded({ extended: false }));
app.use(express.static(path.resolve(__dirname, 'public')));

app.post('/post-feedback', function (req, res) {
dbConn.then(function(db) {
delete req.body._id; // for safety reasons
db.collection('feedbacks').insertOne(req.body);
});
res.send('Data received:\n' + JSON.stringify(req.body));
});

app.listen(process.env.PORT || 3000, process.env.IP || '0.0.0.0' );`

[goto-bus-stop]

yeah! something like that should work i think.

[limone-eth]

ok thanks, I will try to fix it with this method!