Turn Desktop & POS Software into Autopilot SaaS with Zero Gateway Cuts

// C# / .NET Desktop POS License Checker
using System.Net.Http;
using System.Text.Json;
using System.Security.Cryptography;

var client = new HttpClient();
var response = await client.PostAsync("https://licensing.yourdomain.com/api/v1/license/verify",
    new FormUrlEncodedContent(new Dictionary<string, string> {
        { "store_code", "STR101" },
        { "machine_id", Environment.MachineName }
    }));

var json = await response.Content.ReadAsStringAsync();
var result = JsonSerializer.Deserialize<LicenseResult>(json);

if (result.is_valid) {
    // License is Active or in 3-day Grace Period
    Console.WriteLine($"License Valid! Status: {result.status}, Days Left: {result.days_remaining}");
    UnlockFullPOSFeatures();
} else {
    ShowRenewalPaymentModal(result.payload.billing_quote_url);
}

// PHP / Laravel Remote Verification
use Illuminate\Support\Facades\Http;

$response = Http::post('https://licensing.yourdomain.com/api/v1/license/verify', [
    'store_code'   => config('pos.store_code'),
    'domain'       => request()->getHost(),
    'callback_url' => route('api.license.webhook'),
]);

if ($response->successful() && $response->json('is_valid')) {
    $licenseData = $response->json('payload');
    Cache::put('pos_license_status', $response->json('status'), now()->addHours(6));
} else {
    abort(402, 'License expired. Please renew via bKash.');
}

# Verify license status & get cryptographic payload
curl -X POST https://licensing.yourdomain.com/api/v1/license/verify \
  -H "Accept: application/json" \
  -F "store_code=STR101" \
  -F "domain=outlet1.prantikpos.com"

# Check billing quote for store
curl -X POST https://licensing.yourdomain.com/api/v1/license/quote \
  -H "Accept: application/json" \
  -F "store_code=STR101"

# Python / Electron App Integration
import requests

payload = {
    'store_code': 'STR101',
    'machine_id': 'POS-TERMINAL-01'
}

r = requests.post('https://licensing.yourdomain.com/api/v1/license/verify', data=payload)
data = r.json()

if data.get('is_valid'):
    print(f"Granted: {data.get('status')} ({data.get('days_remaining')} days left)")
else:
    print("Locked: License renewal required.")