The first step is to carefully choose APIs that are reliable and well-documented. I start by defining clear API endpoints and data structures, ensuring the app can handle the expected responses efficiently. I use error handling and retries for potential connectivity or rate limit issues. Authentication (e.g., OAuth or API keys) is securely managed, often through encrypted storage, to prevent data breaches.

For data synchronization, I implement background tasks that ensure smooth updates without affecting user experience. Additionally, I use tools like Postman or Insomnia to test API calls during development. Caching strategies are applied to reduce redundant API calls, improving performance.

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