डायनामिक QR Code API एकीकरण
Integrating dynamic QR code APIs into your applications: REST endpoints, webhooks, SDK usage, and rate limiting.
Dynamic QR Code API Integration
Integrating a dynamic QR code API into your applications automates QR code generation, management, and analytics retrieval programmatically.
Common API Operations
| Operation | HTTP Method | Endpoint (typical) |
|---|---|---|
| Create QR code | POST | /api/qrcodes |
| Update destination | PUT/PATCH | /api/qrcodes/{id} |
| Get QR code details | GET | /api/qrcodes/{id} |
| Delete QR code | DELETE | /api/qrcodes/{id} |
| List QR codes | GET | /api/qrcodes |
| Get scan analytics | GET | /api/qrcodes/{id}/scans |
| Download QR image | GET | /api/qrcodes/{id}/image |
| Batch create | POST | /api/qrcodes/batch |
Authentication
Most APIs use token-based authentication:
- API key: Simple, sent in a header (
Authorization: Bearer <key>) - OAuth 2.0: For enterprise integrations with granular permissions
- HMAC signatures: For webhook verification
Webhook Integration
Webhooks notify your application of scan events in real-time:
{
"event": "scan",
"qr_code_id": "abc123",
"timestamp": "2026-02-27T10:30:00Z",
"device": "iPhone",
"location": {"city": "Seoul", "country": "KR"}
}
Use webhooks for: - Real-time scan notifications - Triggering CRM actions on scan - Inventory tracking and supply chain events - Access control decisions
Rate Limiting
APIs impose rate limits to prevent abuse:
- Generation: 10-100 requests/second
- Analytics: 1-10 requests/second
- Image download: 10-50 requests/second
Handle rate limits with exponential backoff and request queuing.
Error Handling
Implement robust error handling:
- 400: Invalid input — validate data before sending
- 401/403: Authentication failure — check API key
- 429: Rate limited — implement backoff
- 500: Server error — retry with exponential backoff
Key Takeaways
- Standard REST APIs cover CRUD operations, analytics, and image download
- Token-based authentication is most common; OAuth 2.0 for enterprise
- Webhooks enable real-time scan event processing
- Rate limiting requires exponential backoff and request queuing
- Validate all input data before API calls to avoid 400 errors