Installation

Background

We assume you already have node and npm installed into your system. Not sure about that, you can run these commands in terminal

node -v
# outputs like v6.2.0 , otherwise it will be error

npm -v
# outputs like 3.8.9 , otherwise it will be an error

If not installed, you can get them from following sources

• Install single node version via Nodejs.org
• (Or my favorite) Use nvm and use multiple node and npm versions at once.

Installation

Next step is easy one, just goto your project directory via terminal and run following command

npm install --save sequelize

# this install sequelize to your project and save it in your package.json as well

Now you will have to install a database package. Here is the list of all database and their package you will need

Dialect	Package
MySQL	node-mysql
PostgresSQL	node-postgres
SQLite	node-sqlite3
MSSQL	tedious

Say you want to use sequelize with a Postgres database you will have to install node-postgres package.

npm install -save node-postgres

You can connect to multiple databases, you just have to install the correct package as well :)