PostgreSQL

Introduction

PostgreSQL is a powerful, open source object-relational database system that has earned it a strong reputation for reliability, feature robustness, and performance.

Installation

How to Installed PostgreSQL.

With Ubuntu

Run into the Terminal 👇:

sudo apt install postgresql

With Windows

Installing Database Server:

• Download PostgreSQL Database .

Client PostgreSQL Installation pgAdmin.

Client

To run management commands lines into the database server, you will need to connect to PostgreSQL.

Ubuntu

Run into the terminal the below command line:

sudo -u postgres psql

Windows

Use and Install pgAdmin.

Create an User

Run the following command line that is conneted to the Client PostgreSQL:

create user app_user with password 'S3cR3t';

Building a Database

For this step the user will need to run the below command line that is conneted to the client PostgreSQL:

create database app_db with owner app_user;

To Exit use the command line: \q

Database Set up

Using the client app PostgreSQL, you can also connect yourself to the new database that you built.

Ubuntu

Run the below line command into the terminal:

sudo -u postgres psql app_db

Windows

Use and Install pgAdmin.

UUID Extension and Installation

Is required to install into PostgreSQL an extension to generate UUID.

CREATE EXTENSION IF NOT EXISTS "uuid-ossp";

Application Set up

You must edit the configuration file of the application according to the environment:

• config/_development.json

PostgreSQL example and Configuration:

{
    ...
    "db": {
        "default": {
            "engine": "pg",
            "port": "5432",
            "host": "localhost",
            "name": "app_db",
            "username": "app_user",
            "password": "S3cR3t"
        }
    },
    ...
}

Also can be used advanced setups as you can see below 👇:

{
    ...
    "db": {
        "default": {
            "engine": "pg",
            "port": "5432",
            "host": "localhost",
            "name": "app_db",
            "username": "app_user",
            "password": "S3cR3t",
            "maximumPoolSize": 100,
            "minimumIdle": 1,
            "idleTimeout": 10000,
            "maxLifetime": 60000
        }
    },
    ...
}