Post-Comment Service

This is a Go-based microservice for managing posts and comments. It provides a RESTful API for user registration, authentication, creating posts, and adding comments to posts.

Prerequisites

• Go 1.16 or later
• PostgreSQL 12 or later

Setup

1. Clone the repository:

   git clone https://github.com/yourusername/post-comment-service.git
   cd post-comment-service
   

2. Install dependencies:

   go mod tidy
   

3. Set up the PostgreSQL database:

   • Create a new database named post_comments_db
   • Create a user with appropriate permissions

4. Update the config.yaml file in the internal/config/ directory with your database credentials:

   database:
     url: "postgres://yourusername:yourpassword@localhost:5432/post_comments_db?sslmode=disable"

5. Run database migrations:

   go run tools/create_migration.go -name <your_migration_name>
   
   

Running the Service

To start the service, run:

go run cmd/main.go

The service will start on localhost:8080 by default.

API Endpoints

• POST /register: Register a new user
• POST /login: Authenticate and receive a JWT token
• GET /posts: List all posts
• POST /posts: Create a new post (requires authentication)
• GET /posts/{id}: Get a specific post
• POST /posts/{postID}/comments: Add a comment to a post (requires authentication)
• GET /posts/{postID}/comments: Get all comments for a post

Usage Examples

Here are some curl commands to interact with the API:

1. Register a user:

   curl -X POST http://localhost:8080/register -H "Content-Type: application/json" -d "{\"username\":\"testuser\",\"password\":\"testpassword\"}"
   

2. Login:

   curl -X POST http://localhost:8080/login -H "Content-Type: application/json" -d "{\"username\":\"testuser\",\"password\":\"testpassword\"}"
   

3. Create a post (replace YOUR_JWT_TOKEN with the token received from login):

   curl -X POST http://localhost:8080/posts -H "Content-Type: application/json" -H "Authorization: Bearer YOUR_JWT_TOKEN" -d "{\"title\":\"My First Post\",\"content\":\"This is the content of my first post.\"}"
   

4. Get all posts:

   curl -X GET http://localhost:8080/posts
   

5. Add a comment to a post (replace POST_ID and YOUR_JWT_TOKEN):

   curl -X POST http://localhost:8080/posts/POST_ID/comments -H "Content-Type: application/json" -H "Authorization: Bearer YOUR_JWT_TOKEN" -d "{\"content\":\"This is a comment on the post.\"}"