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frontend-api-integration-patterns

authentic

Production-ready patterns for integrating frontend applications with backend APIs, including race condition handling, request cancellation, retry strategies, error normalization, and UI state management.

When to use

• Connecting frontend apps (React, React Native, Vue, etc.) to backend APIs
• Integrating ML/AI endpoints (`/predict`, `/recommend`)
• Handling asynchronous data in UI
• Fixing stale data, flickering UI, or duplicate requests
• Designing scalable frontend API layers

When not to use

• These examples use vanilla JavaScript patterns; adapt them to your framework's data-fetching library when using React Query, SWR, Apollo, Relay, or similar tools.
• Do not retry non-idempotent mutations unless the backend provides idempotency keys or another duplicate-safe contract.
• Do not expose privileged API keys in frontend code; proxy sensitive requests through a backend.

Skill page

Source