JAVASCRIPT

mongoose connect

import mongoose from 'mongoose'

export const connectDb = async () => {
  try {
    await mongoose.connect('mongodb://localhost:27017/test', {
      useNewUrlParser: true,
      useUnifiedTopology: true,
      useCreateIndex: true,
    })
  } catch (error) {
    console.log(error.message)
  }
}

connecting to mongoDB using mongoose

//Import the mongoose module
var mongoose = require('mongoose');

//Set up default mongoose connection
var mongoDB = 'mongodb://127.0.0.1/my_database';
mongoose.connect(mongoDB, {useNewUrlParser: true, useUnifiedTopology: true});

//Get the default connection
var db = mongoose.connection;

//Bind connection to error event (to get notification of connection errors)
db.on('error', console.error.bind(console, 'MongoDB connection error:'));

how to connect mongoose database with nodejs

const mongoose = require("mongoose");

const databaseConnection = () => {
  const dbUri = process.env.DB_URI || "mongodb://localhost:27017/codershouse";
  mongoose
    .connect(dbUri, {
      useNewUrlParser: true,
      useUnifiedTopology: true,
    })
    .then((data) => {
      console.log(
        `MongoDb Database Connected to the Server : ${data.connection.host}`
      );
    })
    .catch((err) => {
      console.log(`Some Database Connection Error Occured :- ${err}`);
    });
};

module.exports = databaseConnection;

mongoose connection

const mongoose = require("mongoose");

//  database connection with mongoose
mongoose.connect("mongodb://localhost/todos", {
        useNewUrlParser: true,
        useUnifiedTopology: true
    })
    .then(() => console.log("connection successful"))
    .catch((err) => console.log(err));

mongoose connect to mongodb

// local conecation

const mongoose = require("mongoose");

mongoose
  .connect("mongodb://localhost:27017/testdb")
  .then(() => console.log("Connected to MongoDB..."))
  .catch((err) => console.error("Could not connect to MongoDB...", err));

node js connect to mongodb using mongoose

//connect with mongodb
mongoose.connect('mongodb://localhost:27017/your_db_name', {useNewUrlParser: true});
//you can also specify with user and pass
mongoose.connect('mongodb://username:password@host:port/database?options...', {useNewUrlParser: true});
//or goto docs https://mongoosejs.com/docs/connections.html

mongoose connect

mongoose.connect('mongodb://username:password@host:port/database?options...', {useNewUrlParser: true});

mongoose connect

// getting-started.js
const mongoose = require('mongoose');

main().catch(err => console.log(err));

async function main() {
  await mongoose.connect('mongodb://localhost:27017/test');
  
  // use `await mongoose.connect('mongodb://user:password@localhost:27017/test');` if your database has auth enabled
}

how to connect mongoose

const mongoose = require('mongoose');

const uri = process.env.MONGO_URI || 'mongodb://localhost/test';

mongoose.connect(uri, function(err, res) {
  ...
});