Create Nodejs JavaScript Microservices Project with Postgres Database in Docker Container

Описание

In this video we will create microservices in Nodejs JavaScript with postgres database deployed in docker container. Using Express, PG & Sequelize ORM JavaScript module in this project. We will connect microservices running in node server with postgres sql database running in docker container. I will also show step-by-step code to create microservices in Nodejs. I will explain Sequelize ORM module in JavaScript. I will explain how to connect JavaScript microservice to postgres db running in docker container.

** Chapter Timestamps **
0:00 Introduction to Nodejs Javascript Microservices with Postgresdb
0:52 Agenda of this tutorial
2:46 Architecture Diagram of tutorial explained
6:37 Prerequisite of Nodejs microservice tutorial
7:36 Basic of Docker Container & Docker HUB repository
8:55 Download Postgre DB TAG from Docker HUB repository
10:31 Run Postgres DB in Docker Container
18:21 Understanding of Nodejs modules like Express, PG, Sequelize
19:57 GIT Repository of this project
21:12 Coding Microservice in Nodejs
22:43 Coding database entity and Repository components
32:34 Coding business layer components
28:00 Coding controller components
40:48 Coding routes components
43:12 Coding main app component
45:49 Coding config components
46:35 Running Microservice app
48:00 Testing Microservices end points
57:13 Stopping the docker container
59:00 Summary of Nodejs microservice with postgres sql

** Important Nodejs Packages or Modules **
• Express - Express is a node js web application framework that provides broad features for building web and mobile applications. It is used to build a single page, multipage, and hybrid web application. It's a layer built on the top of the Node js that helps manage servers and routes.

• Sequelize - Sequelize is a Node.js-based Object Relational Mapper that makes it easy to work with MySQL, MariaDB, SQLite, PostgreSQL databases, and more.

• PG - Non-blocking PostgreSQL client for Node.js. Pure JavaScript and optional native libpq bindings.

• Body-parser - Body-parser parses an HTTP request body. Specifically in the context of a POST, PATCH, or PUT HTTP requests where the information is contained in the body. body-parser allows you to access req. Also helps in parsing the DB URLs.

• UUID - UUID is used to generate 16-byte unique value. This is used for the primary keys.

** Docker Container **
A container is an isolated environment for your code. This means that a container has no knowledge of your operating system, or your files. It runs on the environment provided to you by Docker Desktop. This is why a container usually has everything that your code needs in order to run, down to a base operating system.

** Docker File **
A Dockerfile is a text document that contains all the commands a user could call on the command line to assemble an image. This page describes the commands you can use in a Dockerfile

** Docker Image **
Docker is used to create, run and deploy applications in containers. A Docker image contains application code, libraries, tools, dependencies and other files needed to make an application run. When a user runs an image, it can become one or many instances of a container.

** Docker HUB Repository **
Docker Hub is a hosted repository service provided by Docker for finding and sharing container images with your team.

#nodejstutorial #postgres #dockertutorial

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