Simple Go HTTP Server

This is a simple HTTP server written in Go that demonstrates basic user registration, login, and authentication functionality using a PostgreSQL database.

Prerequisites

To run the server, you need to have Go (version 1.16 or higher) installed on your system. Additionally, make sure you have a PostgreSQL database available and the required environment variables set.

Installation

1. Clone the repository:

   git clone https://github.com/ChARCOOL/golang-authentication

2. Change to the project directory:

   cd golang-authentication

3. Build the project:

   go build

Configuration

The server uses the following environment variables for configuration:

• POSTGRES_HOST: The hostname of the PostgreSQL database server. Defaults to localhost.
• POSTGRES_PORT: The port number of the PostgreSQL database server. Defaults to 5432.
• POSTGRES_USER: The username to authenticate with the PostgreSQL database server. Defaults to postgres.
• POSTGRES_PASSWORD: The password to authenticate with the PostgreSQL database server. Defaults to postgres.
• POSTGRES_DB: The name of the PostgreSQL database. Defaults to postgres.
• LISTEN_ADDR: The address on which the server will listen. Defaults to :3000.

Make sure to set these environment variables according to your PostgreSQL database configuration before starting the server.

Usage

To start the server, run the following command:

./<executable-name>

The server will listen on the address specified by the LISTEN_ADDR environment variable (default: :3000).

API Endpoints

The server provides the following API endpoints:

• POST /user/register: Registers a new user by providing a username, email, and password.
• POST /user/login: Logs in a user by providing their email and password.
• GET /user/me: Fetches the currently authenticated user's details.

Database Connection

The server connects to a PostgreSQL database using the github.com/lib/pq driver. The connection details are retrieved from the environment variables POSTGRES_HOST, POSTGRES_PORT, POSTGRES_USER, POSTGRES_PASSWORD, and POSTGRES_DB. Make sure to set these environment variables with the appropriate values.