Inserting in mongodb with nodejs - node.js

Question

I'm trying to insert some data in my mongodb with nodejs whenever a socket is emitted. Here is the code:
io.sockets.on( "connection",function( socket ){
socket.on( "send", function( data ) {
console.log(data.name + " and the content is: " + data.content);
mongodb.connect( "mongodb://127.0.0.1", function( err, db ) {
if(err) throw err;
var to_be_inserted = {name: data.name,content: data.content};
db.collection("chat").insert(to_be_inserted,function(err,objects){
if(err) throw err;
});
})
})
})
However whenever I go to my mongo console and type
db.chat.find()
I cannot find the inserted record. I'm sure that I have mongod open and I'm sure that the socket is emitted. Moreover the consoloe.log before the insertion does work.
Here is my mongo client
var mongodb = require("mongodb").MongoClient;
My console which runs the nodejs server does not log any error.

Answer 1

You should specify a database name (here: myDatabase ) and a port number (for safety).
mongodb.connect("mongodb://127.0.0.1:27017/myDatabase", function( err, db ) {
When searching the record in the mongo shell try:
use myDatabase
db.chat.find()

Answer 2

You forget to include the port number and database of mongodb,
MongoClient.connect('mongodb://127.0.0.1:27017/test', function(err, db) {
if (err) throw err;
console.log("Connected to Database");
}

Answer 3

try this code
var MongoClient=require('mongodb').MongoClient;
var Server=require('mongodb').Server;
var mongoc=new MongoClient(new Server("localhost",27017));
mongoc.open(function(err)
{
db.collection(<collection_name>).insert(<query>,function(err,result)
{
});

Answer 4

const http = require('http');
const hostname = '127.0.0.1';
const port = 8081;
var express = require("express");
var bodyParser = require('body-parser');
var app = express();
var MongoClient = require('mongodb').MongoClient;
var url = "mongodb://localhost:27017";
app.use(bodyParser.json());
app.get('/get', function (req, res) {
res.send('Hello World')
})
var data = {
title: 'my title',
content: 'my content'
};
// This responds a POST request for the homepage
app.post('/say/:userid', function (req, res) {
var queryParameter=JSON.stringify(req.query);
res.send('Hello POST'+req.params.userid+""+queryParameter);
})
app.post('/insert', function (req, res) {
console.log(req.body);
res.send('Hello POST'+JSON.stringify(req.body));
/* var MongoClient = require('mongodb').MongoClient;
var url = "mongodb://localhost:27017"; */
MongoClient.connect(url, function(err, db) {
if (err) throw err;
var dbase = db.db("mydb");
var myobj = { name: JSON.stringify(req.body.name), address:JSON.stringify(req.body.address) };
dbase.collection("student").insertOne(myobj, function(err, res) {
if (err) throw err;
console.log("1 document inserted");