Kasir API

A simple REST API for managing products and categories in a point-of-sale (kasir) system built with Go.

Features

• Health check endpoint
• Products Management:
  • Get all products
  • Create new product
  • Get product by ID
  • Update existing product by ID
  • Delete product by ID
• Category Management:
  • Get all categories
  • Create new category
  • Get category by ID
  • Update existing category by ID
  • Delete category by ID

Running the Server

go run main.go

The server will start on http://localhost:8080

API Endpoints

Health Check

GET /health

Response:

{
  "message": "API is running"
}

Products

Get all products

GET /api/produk

Get product by ID

GET /api/produk/{id}

Create new product

POST /api/produk
Content-Type: application/json

{
  "name": "Product Name",
  "harga": "Rp 10.000",
  "stok": 50
}

Update product

PUT /api/produk/{id}
Content-Type: application/json

{
  "name": "Updated Name",
  "harga": "Rp 12.000",
  "stok": 75
}

Delete product

DELETE /api/produk/{id}

Categories

Get all categories

GET /category

Get category by ID

GET /category/{id}

Create new category

POST /category
Content-Type: application/json

{
  "name": "Category Name",
  "description": "Category description"
}

Update category

PUT /category/{id}
Content-Type: application/json

{
  "name": "Updated Category Name",
  "description": "Updated description"
}

Delete category

DELETE /category/{id}

Response Format

Success responses include a message and data object:

{
  "message": "Operation successful",
  "data": { ... }
}

Error responses:

{
  "error": "Error description"
}

Sample Data

Products

• Indomie Goreng - Rp 3.500 (Stock: 100)
• Teh Botol Sosro - Rp 5.000 (Stock: 50)
• Aqua 600ml - Rp 4.000 (Stock: 200)

Categories

• Makanan - Produk makanan ringan dan berat
• Minuman - Berbagai jenis minuman kemasan
• Sembako - Kebutuhan pokok sehari-hari
• Snack - Camilan dan makanan ringan
• Perlengkapan Rumah - Alat dan perlengkapan rumah tangga

Notes

• Data is stored in-memory and will reset when the server restarts
• Product and Category IDs are auto-generated and auto-incremented
• All endpoints return JSON responses
• The server can use a custom port by setting the PORT environment variable