RESTful API

Laravel Nusa provides a comprehensive RESTful API for accessing Indonesian administrative data. This guide covers the essential concepts and common usage patterns for integrating the API into your applications.

Quick Start

The API is automatically available after installation at the /nusa endpoint:

# Get all provinces
curl http://your-app.test/nusa/provinces

# Get specific province
curl http://your-app.test/nusa/provinces/33

# Search provinces
curl "http://your-app.test/nusa/provinces?search=jawa"

Configuration

Enable/Disable API Routes

The API routes are enabled by default. You can control this behavior:

# Disable API routes
CREASI_NUSA_ROUTES_ENABLE=false

# Change route prefix
CREASI_NUSA_ROUTES_PREFIX=api/indonesia

Security Considerations

Since the API endpoints are public by default, consider these security measures for production:

CORS Configuration

Configure CORS for frontend applications:

// config/cors.php
'paths' => ['api/*', 'nusa/*'],
'allowed_methods' => ['GET'],
'allowed_origins' => ['https://yourdomain.com'],

Rate Limiting

Add rate limiting to prevent abuse:

// routes/api.php
Route::middleware(['throttle:100,1'])->group(function () {
    // Your custom API routes
});

Common Integration Patterns

Frontend Applications

For building address forms and location-based features:

// Fetch provinces for dropdown
async function loadProvinces() {
    const response = await fetch('/nusa/provinces');
    const data = await response.json();
    return data.data;
}

// Cascading dropdown implementation
async function loadRegencies(provinceCode) {
    const response = await fetch(`/nusa/provinces/${provinceCode}/regencies`);
    const data = await response.json();
    return data.data;
}

Backend Services

For server-side data processing and validation:

use GuzzleHttp\Client;

class LocationService
{
    private $client;

    public function __construct()
    {
        $this->client = new Client(['base_uri' => config('app.url')]);
    }

    public function validateAddress(array $addressData): bool
    {
        $response = $this->client->get("nusa/villages/{$addressData['village_code']}");

        if ($response->getStatusCode() !== 200) {
            return false;
        }

        $village = json_decode($response->getBody(), true)['data'];

        return $village['district_code'] === $addressData['district_code'] &&
               $village['regency_code'] === $addressData['regency_code'] &&
               $village['province_code'] === $addressData['province_code'];
    }
}

Performance Optimization

Caching Strategy

Implement caching for frequently accessed data:

use Illuminate\Support\Facades\Cache;

class CachedLocationService
{
    public function getProvinces()
    {
        return Cache::remember('nusa.provinces', 3600, function () {
            $response = Http::get('/nusa/provinces');
            return $response->json()['data'];
        });
    }
}

Pagination Best Practices

Always use pagination for large datasets:

// Good: Use pagination
const response = await fetch('/nusa/villages?per_page=50&page=1');

// Avoid: Loading all villages at once
const response = await fetch('/nusa/villages'); // 83,762 records!

Custom Implementation

If you need more control over the API behavior, you can disable the default routes and create your own:

Disable Default Routes

CREASI_NUSA_ROUTES_ENABLE=false

Create Custom API Routes

// routes/api.php
use Creasi\Nusa\Models\Province;

Route::prefix('v1/indonesia')->middleware(['auth:api', 'throttle:100,1'])->group(function () {
    Route::get('provinces', function (Request $request) {
        $query = Province::query();

        if ($search = $request->get('search')) {
            $query->search($search);
        }

        return $query->paginate($request->get('per_page', 15));
    });

    Route::get('provinces/{province}/regencies', function (string $code) {
        $province = Province::findOrFail($code);
        return $province->regencies()->paginate(15);
    });
});

Complete API Reference

For detailed information about all available endpoints, parameters, and response formats, see the comprehensive API Reference documentation.

The API reference includes:

• Complete endpoint listing with all available routes
• Detailed response formats and data structures
• Query parameters for search, filtering, and pagination
• Error handling and status codes
• Usage examples in multiple programming languages
• Data attributes for each administrative level