🚀 API Service Guide

📖 Introduction

This API service is designed to provide a robust backend for managing products, orders, and user authentication. It integrates with BPJS for health insurance services and offers a comprehensive set of features for developers.

🌟 Features

• User authentication with JWT
• CRUD operations for products and orders
• Integration with BPJS services
• Swagger documentation for easy API testing
• Docker support for easy deployment

📋 Quick Start (5 Menit)

1. Setup Environment

git clone <repository-url>
cd api-service
cp .env.example .env

2. Jalankan Database & API

# Opsi A: Docker (Rekomendasi)
make docker-run

# Opsi B: Manual
go mod download
go run cmd/api/main.go

3. Akses API

• API: http://localhost:8080/api/v1
• Swagger: http://localhost:8080/swagger/index.html
• Health Check: http://localhost:8080/api/v1/health

🏗️ Struktur Project

api-service/
├── cmd/api/main.go          # Entry point
├── internal/               # Core business logic
│   ├── handlers/          # HTTP controllers
│   ├── models/            # Data structures
│   ├── middleware/        # Auth & error handling
│   └── routes/            # API routes
├── tools/                 # CLI generators
└── docs/                  # API documentation

🔐 Authentication

Login (Dapatkan Token)

curl -X POST http://localhost:8080/api/v1/auth/login \
  -H "Content-Type: application/json" \
  -d '{"username":"admin","password":"password"}'

Gunakan Token

curl -X GET http://localhost:8080/api/v1/products \
  -H "Authorization: Bearer <your-token>"

Demo Users

Username	Password	Role
admin	password	admin
user	password	user

🛠️ Generate Handler Baru (30 Detik)

Cara Cepat

# Windows
tools/generate.bat product get post put delete

# Linux/Mac
./tools/generate.sh product get post put delete

# Atau langsung dengan Go
go run tools/general/generate-handler.go orders get post

go run tools/general/generate-handler.go orders/product get post

go run tools/general/generate-handler.go orders/order get post put delete dynamic search stats

go run tools/bpjs/generate-bpjs-handler.go reference/peserta get

# 1. Test generate satu service
go run tools/bpjs/generate-handler.go services-config-bpjs.yaml vclaim

# 2. Test generate semua service
go run tools/bpjs/generate-handler.go services-config-bpjs.yaml

Method Tersedia

• get - Ambil data
• post - Buat data baru
• put - Update data
• delete - Hapus data

Hasil Generate

• Handler: internal/handlers/product/product.go
• Models: internal/models/product/product.go
• Routes: Otomatis ditambahkan ke /api/v1/products

📊 API Endpoints

Public (Tanpa Auth)

• POST /api/v1/auth/login - Login
• POST /api/v1/auth/register - Register
• GET /api/v1/health - Health check

Protected (Dengan Auth)

• GET /api/v1/auth/me - Profile user
• GET /api/v1/products - List products
• POST /api/v1/products - Create product
• GET /api/v1/products/:id - Detail product
• PUT /api/v1/products/:id - Update product
• DELETE /api/v1/products/:id - Delete product

🧪 Development Workflow

Perintah Penting

make watch      # Jalankan dengan hot reload
make test       # Unit tests
make itest      # Integration tests
make all        # Semua tests
make build      # Build production

Update Swagger

swag init -g cmd/api/main.go --parseDependency --parseInternal

🔧 Environment Variables

Database

BLUEPRINT_DB_HOST=localhost
BLUEPRINT_DB_PORT=5432
BLUEPRINT_DB_USERNAME=postgres
BLUEPRINT_DB_PASSWORD=postgres
BLUEPRINT_DB_DATABASE=api_service

JWT Secret

JWT_SECRET=your-secret-key-change-this-in-production

🐳 Docker Commands

Development

make docker-run          # Jalankan semua services
docker-compose down      # Stop services

Production

docker build -t api-service:prod .
docker run -d -p 8080:8080 --env-file .env api-service:prod

🎯 Tips Cepat

1. Generate CRUD Lengkap

go run tools/generate-handler.go user get post put delete

2. Test API dengan Swagger

1. Buka http://localhost:8080/swagger/index.html
2. Login untuk dapat token
3. Klik "Authorize" dan masukkan token
4. Test semua endpoint

3. Debug Database

• pgAdmin: http://localhost:5050
• Database: api_service
• User/Pass: postgres/postgres

🚨 Troubleshooting

Generate Handler Gagal

• Pastikan di root project
• Cek file internal/routes/v1/routes.go ada
• Pastikan permission write

Database Connection Error

• Cek PostgreSQL running
• Verifikasi .env configuration
• Gunakan make docker-run untuk setup otomatis

Token Invalid

• Login ulang untuk dapat token baru
• Token expire dalam 1 jam
• Pastikan format: Bearer <token>

📱 Contoh Integrasi Frontend

JavaScript/Axios

// Login
const login = await axios.post('/api/v1/auth/login', {
  username: 'admin',
  password: 'password'
});

// Set token
axios.defaults.headers.common['Authorization'] = 
  `Bearer ${login.data.access_token}`;

// Get data
const products = await axios.get('/api/v1/products');

🎉 Next Steps

1. ✅ Setup environment selesai
2. ✅ Generate handler pertama
3. ✅ Test dengan Swagger
4. 🔄 Tambahkan business logic
5. 🔄 Deploy ke production

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Total waktu setup: 5 menit | Generate CRUD: 30 detik | Testing: Langsung di Swagger