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React or Next.js UI integration with API contracts, auth, errors, validation, request state, and compatibility.
Practice items tagged with Frontend API Integration.
Explains URL-backed filters, API query parameters, pagination, sorting, empty states, and shareable list views.
Explains permission-aware navigation, guarded routes, server authorization, stale capabilities, and safe 401/403 handling.
Explains how to design DTOs, response shapes, UI needs, API compatibility, and frontend/backend ownership for a feature.
Explains how client-side validation, server-side validation, DTOs, domain rules, and user feedback work together.
Explains list/detail API boundaries, route state, prefetching, selected item behavior, and avoiding over-fetching.
Explains upload UX, API boundaries, validation, progress, storage, scanning, failure handling, and safe download behavior.