Messages Service

Description

A simple Go-based microservice that provides CRUD operations for messages and includes palindrome detection functionality.

Architecture

Project Structure

messages-service/
├── database
   ├── db_connection_test.go
   ├── db_connection.go
   ├── models.go
   └── schema.sql
├── handlers
   ├── handlers.go
   └── handlers_test.go
├── utils
   ├── palindrome.go
   └── palindrome_test.go
├── go.mod
├── go.sum
├── main.go
└── main_test.go

Build and Run

Prerequisites

• Go (version 1.17 or higher)
• Docker
• PostgreSQL

Steps

1. Clone the repository

   git clone https://github.com/shawn1912/messages-service.git
   cd messages-service

2. Set up the database

   Ensure PostgreSQL is running and create the messages database.

   psql -U postgres
   CREATE DATABASE messages;
   \q

   Run the schema script:

   psql -U postgres -d messages -f ./database/schema.sql

3. Run the application

   go run .

API Endpoints

• POST /message: Create a new message.
• GET /messages: List messages (max 100).
• GET /message/{id}: Retrieve a message.
• PUT /message/{id}: Update a message.
• DELETE /message/{id}: Delete a message.

Example: Creating a message

curl -X POST http://localhost:8080/messages \
  -H 'Content-Type: application/json' \
  -d '{"content": "A man a plan a canal Panama"}'

Response

{
  "id": 29,
  "content": "A man a plan a canal Panama",
  "isPalindrome": true,
  "createdAt": "2024-10-28T12:00:00Z",
  "updatedAt": "2024-10-28T12:00:00Z"
}

Testing

Run unit tests:

go test ./...