expo-api-routes

Build serverless API routes with Expo Router by creating TypeScript handlers in your app directory to process HTTP methods, dynamic routes, and request parameters. This enables server-side logic without needing a separate backend.

Securely manage server-side API keys and database credentials in Expo Router by defining environment variables within your API routes. This keeps sensitive information and direct database operations completely hidden from the client.

Handle CORS in Expo Router API routes by configuring HTTP headers within your TypeScript request handlers. This ensures your serverless endpoints can securely accept cross-origin requests from your frontend application.

EAS Hosting has specific runtime limitations for Expo API routes that affect how serverless functions execute. Understanding these constraints is necessary when implementing database integration or authentication middleware.

Create webhook endpoints in Expo Router by defining serverless API routes that securely receive and process callbacks from external services. This allows direct integration with platforms like Stripe or GitHub without exposing client keys.

Use Expo Router API routes instead of a separate backend to securely proxy requests to external services. This approach protects your API keys server-side while maintaining a unified TypeScript codebase across your application.