url-shortener

A basic URL shortening service

This is a hobby project to learn Golang. The application has 2 components:

1. Admin Service: This is a RESTful API server that allows users to shorten URLs. It provides
   • A user interface for users to input long URLs and receive shortened versions.
   • A list of previously shortened URLs.
2. Url Redirector: This is a simple HTTP server that redirects requests for shortened URLs to their original long URLs.

Project Structure

url-shortener/
├── auth/               # JWT Authentication token validation and creation related code
├── cache/              # Redis Cache related code
├── configs/            # Configuration files. Base server, database, cache, etc.
├── db/                 # Postgres database object
├── models/             # Database models for URLs, Users and URL Redirection
├── server/             # Separate start points for admin and redirector services
├── urls/               # URL shortener related code for admin and redirector services
├── users/              # User related code for admin service

Getting Started

Prerequisites

• Go 1.24.1 or later
• Postgres 15 or later
• Redis 7.4 or later
• Docker (optional, for deployment)
• Docker Compose (optional, for deployment)
• Make sure you have the necessary permissions to run the application and access the database.

Installation

1. Clone the repository:

   git clone https://github.com/pratts/url-shortener.git
   cd url-shortener

2. Install dependencies:

   go mod tidy

3. Set up the database:
   • Create a Postgres database and user for the application.
4. Set up Redis:
   • Install Redis and start the server.
5. Configure the application:
   • Update the .env.example file with server, database and cache configurations
   • Rename the file to .env or create a new .env file with the same name and copy the parameters from .env.example
6. Run the applications on terminal:
   • Start the admin service:

   go run server/admin/main.go

   • Start the redirector service:

   go run server/redirector/main.go

   • Alternatively, you can use Docker to run the application:

   docker-compose up --build

   • This will start the application and expose the admin and the redirector service on ports defined in .env file. It will start a separate postgres database on 5432 and redis server on 6379.
7. Access the application APIs:
   • Admin service: http(s)://${host}$:{admin_port}/api/v1/swagger/index.html
8. Test the application:
   • Create a user with the email and password
   • Login with the email and password and get the access token
   • Use the access token to access the APIs

Demo

The application deployed on railway at https://admin.tidylnk.com/

👤 Email: [email protected]
🔐 Password: demo123

API Documentation

• The API documentation is available at http(s)://${host}$:{admin_port}/api/v1/swagger/index.html
• The API documentation is generated using the command:

go install github.com/swaggo/swag/cmd/swag@latest

• To solve a dependency issue, run the following command:

go get github.com/jackc/pgx/v5/[email protected]

• To generate the API documentation, run the following command:

swag init -d server/admin,urls,users,models