API Integration Guide for Business: A Practical Approach
How to plan system integrations, when to use REST vs GraphQL vs webhooks, and common integration scenarios in Turkey.
What Is API Integration and Why Does It Matter?
API integration enables different software systems to exchange data with each other. Your e-commerce site connecting to your ERP, your accounting software synchronising with your bank, your CRM feeding your email platform — all of these are API integrations.
REST, GraphQL or Webhook?
REST API: standard, broadly supported, ideal for CRUD operations. GraphQL: flexible data querying, single endpoint, advantageous for mobile apps that need tailored data shapes. Webhook: the right choice for real-time event notifications such as payment confirmation or order status changes.
Integration Design Essentials
- Error handling and retry mechanisms
- Rate limiting and throttling
- Security: API keys, OAuth 2.0, JWT
- Versioning strategy
- Logging and monitoring
Common Integration Scenarios in Turkey
Trendyol and Hepsiburada marketplace APIs, e-invoice (GIB), payment gateways (Iyzico, PayTR, Stripe), accounting software (Logo, SAP), ERP systems, banking APIs.
Our Integration Experience
API integration architectures built for Turk Telekom, Starwood and e-commerce projects deliver real-time data flow, secure authentication and high availability. We bring the same rigour to every integration engagement.