README

Lazarus + Horse JSON API

A simple REST API built with Lazarus (Free Pascal) and the Horse framework, using the Horse.Jhonson middleware for JSON parsing.
This project is for study purposes only, demonstrating how to handle JSON data in memory without a database.

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🚀 Features

• POST /users → Save JSON data in memory.
• GET /users → Retrieve the last JSON saved.
• Returns JSON responses with proper Content-Type.
• Uses fpjson to handle JSON objects in Free Pascal.

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🛠️ Requirements

• Lazarus IDE (with Free Pascal).
• Horse Framework.
• Horse Jhonson Middleware.

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▶️ Running the Project

1. Clone the repository:
   bashCopy

   git clone https://github.com/GabRodrigues23/lazarus-horse-json-api.git
   cd lazarus-horse-json-api

2. Open the project in Lazarus and compile.
3. Run the executable:
   bashCopy

   ./backend

4. The API will be available at:
   pascalCopy

   http://localhost:9000

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📡 API Endpoints

POST /users

Save a JSON object in memory.

• Request
  httpCopy

  POST /users HTTP/1.1
  Host: localhost:9000
  Content-Type: application/json
  
  {
    "name": "Gabriel R",
    "age": 23
  }

• Response
  jsonCopy

  {
    "name": "Gabriel R",
    "age": 23
  }

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GET /users

Retrieve the last saved JSON.

• Request
  httpCopy

  GET /users HTTP/1.1
  Host: localhost:9000

• Response (if JSON exists)
  jsonCopy

  {
    "name": "Gabriel R",
    "age": 23
  }

• Response (if no JSON saved yet)
  jsonCopy

  {
    "message": "Nenhum JSON Recebido ainda. Use o metodo POST."
  }

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📖 Notes

• The data is stored only in memory (global variable).
• Once the server restarts, the data will be lost.
• Intended for learning and demonstration purposes only.

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📜 License

MIT License. Free to use and modify for educational purposes.