Local Server

mongodb/bin

mongod: database server MongoDB

mongos: routing service MongoDB

Create path for databases: C:\data\db

Download mongoDB shell

Start the server

· Start mongod in mongodb/bin

· Open terminal and enter path to mongod (C:\mongodb\bin\mongod)

Open mongoDB shell

Create and Read operations

use newDB

db.education.insertOne({ school: "Rolling-Scopes" })

db.education.find()

Connection to project

npm init -y

npm i mongodb

On mac

Homebrew (recommended):

/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"

brew tap mongodb/brew

brew install mongodb-community@5.0

· mongosh
· mongod
· mongos

Server start

brew services start mongodb-community@6.0
brew services stop mongodb-community@6.0

mongosh

Atlas server

Create cluster

Create database user

Connect to project

Enter password and project name in URL for connect

MongoDB GUI

Compass

Connect

View the database and work with the shell

CRUD operations

Read

								
									database.collection.find()
									database.collection.findOne()
								
							

Write

								
									database.collection.insertOne()
									database.collection.insertMany()
								
							

automatically creates _id

Delete

								
									database.collection.deleteOne()
									database.collection.deleteMany()
								
							

Update

								
									database.collection.updateOne() $set
									database.collection.replaceOne()
								
							

Update methods

								
									const findDoc = { _id: 465 };
									const updateDocument = {
									   $set: {
									      z: 42,
									   },
									};
									await collection.updateOne(findDoc, updateDocument);
								
							

								
									const findDoc = { _id: 465 };
									const replacementDocument = {
										 z: 42,
									};
									const result = await collection.replaceOne(findDoc, replacementDocument);