TypeORM - Installation

This chapter explains about how to install TypeORM on your machine. Before moving to installation, please make sure that npm is installed. To confirm that you have npm, you can run the following command in your terminal.

npm -v

It shows the version. If it is not installed, download the latest version and install on your machine.

Install TypeORM

Let us install TypeORM locally using npm module −

npm install typeorm --save

After executing the above command, you will get a response as given below −

+ typeorm@0.2.24 
+ 
added 1 package and audited 1236 packages in 4.729s

Alternatively, to install TypeORM globally, use the below command −

npm install typeorm -g

After that, install optional package reflect-metadata using npm −

npm install reflect-metadata --save

You could see the following response −

+ reflect-metadata@0.1.13 

added 1 package and audited 1236 packages in 2.426s

Now, install another optional package. node typings using the below command −

npm install @types/node --save

You could see the following response −

+ @types/node@12.12.31 

added 1 package and audited 1236 packages in 2.167s

Install database driver

In this section, let us install the necessary node packages for our database.

To install MySQL or MariaDB package, use the below command −

npm install mysql --save

You could see the following response −

+ mysql@2.18.1 

added 1 package and audited 1236 packages in 4.36s

To install PostgreSQL package, use the below command −

npm install pg --save

You could see the following response −

+ pg@7.18.2 

added 1 package and audited 1236 packages in 2.863s

To install SQLite package, use the below command −

npm install sqlite3 --save

You could see the following response −

+ sqlite3@4.1.1 
added 48 packages from 45 contributors and audited 1396 packages in 7.31s

To install Microsoft SQL Server package, use the below command −

npm install mssql --save

Your screen looks similar to this,

+ mssql@6.2.0 

added 1 package and audited 1655 packages in 2.378s

To install sql.js package, use the below command −

npm install sql.js --save

You could see the following response −

+ sql.js@1.2.1 

added 1 package and audited 1655 packages in 6.462s

To install Oracle server package, use the below command −

npm install oracledb --save

You could see the following response −

+ oracledb@4.2.0 

added 1 package and audited 1655 packages in 2.265s

To install mongodb package, use the below command −

npm install mongodb --save

You could see the following response −

+ mongodb@3.5.5 

added 1 package and audited 1655 packages in 3.716s