URL Shortener: TypeScript, PostgreSQL, Koa.Js, REST and MVC

Guide to installing required software and tools and creating a new project.

Further instructions on setting up the development environment, including additional configurations and dependencies.

Introduction to the database and its configuration, as well as setting up the connection.

Learn about environment variables and how to use them for database configuration.

Overview of migrations and their role in managing the database schema.

Creating a migration for the Users table and defining its schema.

Creating migrations for the URLs and Visits tables and defining their schemas.

Learn how to test and ensure the database is set up correctly.

Introduction to TypeScript models and how they are used to represent data and inject them into Knex.

Building the URL service for managing URL-related functionality.

Further development of the URL service, including additional methods and error handling.

Introduction to input validation and implementing basic validation rules.

Further development of validation rules and custom validators.

Finalizing validation rules and incorporating them into the application.

Learn how to throw and handle custom exceptions in the application.

Learn how to manage and track visits to the URLs.

Implementing user registration and storing user data in the database.

Learn about password hashing and how to securely store user passwords.

Implementing user login.

Introduction to JWT and how to use it for token-based authentication.

Introduction to the Koa framework and its features.

Setting up the Koa router and defining application routes.

Implementing the authentication router and its endpoints.

Building the authentication middleware to handle user authorization.

Implementing the URLs router and its endpoints.

Managing visits and implementing URL redirection

Why we used Koa and the differences between Koa and Express

Recap of the course, highlighting important concepts and techniques learned, and discussing potential future improvements and next steps for the application.

You can find the full source code for this course on the following link : 

https://github.com/AhmadMuj/url-shortener-course-en