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Aporeon interview preparation

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.NET Full Stack

Product Features

End-to-end full-stack feature implementation across forms, lists, mutations, auth-aware UI, uploads, testing, and production debugging.

19 drillsPractice one at a timeOrdered pathConcept question

Recommended start

Form Validation Boundary

Explains how client-side validation, server-side validation, DTOs, domain rules, and user feedback work together.

Medium~7 minStep 1 of 19

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1Form Validation BoundaryRecommended startExplains how client-side validation, server-side validation, DTOs, domain rules, and user feedback work together.Concept questionMedium~7 min.NETASP.NET CoreNext.jsPractice 2

Practice order

19 drillsOne at a time

1Form Validation BoundaryUp next / Medium / ~7 min
2Validation Error MappingMedium / ~7 min
3Feature ContractMedium / ~7 min
4

Validation Error MappingExplains field-level and form-level error mapping from API responses into a usable frontend form experience.Concept questionMedium~7 min.NETASP.NET CoreNext.js

Practice

3Feature ContractExplains how to design DTOs, response shapes, UI needs, API compatibility, and frontend/backend ownership for a feature.Concept questionMedium~7 min.NETASP.NET CoreNext.jsPractice

4Next.js BFF BoundaryExplains when a Next.js route layer helps with cookies, tokens, aggregation, and UI-specific API adaptation.Concept questionHard~9 min.NETASP.NET CoreNext.jsPractice

5Filtered List PageExplains URL-backed filters, API query parameters, pagination, sorting, empty states, and shareable list views.Concept questionMedium~7 min.NETASP.NET CoreNext.jsPractice

6Debounced SearchExplains debounce, cancellation, stale-response protection, loading indicators, and backend query safety for search UI.Concept questionMedium~7 min.NETASP.NET CoreNext.jsPractice

7Data Page StatesExplains practical UI states for data fetching, empty results, partial failure, retry, and accessible recovery.Concept questionEasy~5 min.NETASP.NET CoreNext.jsPractice

8Master Detail FetchingExplains list/detail API boundaries, route state, prefetching, selected item behavior, and avoiding over-fetching.Concept questionMedium~7 min.NETASP.NET CoreNext.jsPractice

9Cache InvalidationExplains refetching, targeted invalidation, stale data, optimistic updates, server truth, and user feedback after mutations.Concept questionMedium~7 min.NETASP.NET CoreNext.jsPractice

10Optimistic UIExplains when optimistic UI is worth it, when to wait for server confirmation, and how to recover from rejected mutations.Concept questionMedium~7 min.NETASP.NET CoreNext.jsPractice

11Double Submit PreventionExplains frontend guards, backend idempotency, pending state, retries, and duplicate-safe mutation design.Concept questionMedium~7 min.NETASP.NET CoreNext.jsPractice

12File Upload FlowExplains upload UX, API boundaries, validation, progress, storage, scanning, failure handling, and safe download behavior.Concept questionHard~9 min.NETASP.NET CoreNext.jsPractice

13Admin CRUD WorkflowExplains admin list/edit/delete workflows with capability checks, audit events, confirmation, validation, and recovery.Concept questionHard~9 min.NETASP.NET CoreNext.jsPractice

14Auth-Aware UIExplains permission-aware navigation, guarded routes, server authorization, stale capabilities, and safe 401/403 handling.Concept questionMedium~7 min.NETASP.NET CoreNext.jsPractice

15Stale Form ConflictsExplains stale edit detection, row versioning, conflict UI, refresh behavior, and safe update contracts.Concept questionHard~9 min.NETASP.NET CoreNext.jsPractice

16Flagged Feature ReleaseExplains compatible full-stack deployment, backend enforcement, staged rollout, telemetry, safe disablement, rollback decisions, and flag cleanup.Concept questionMedium~7 min.NETASP.NET CoreNext.jsPractice

17E2E Critical FlowExplains how to choose an E2E flow, control test data, avoid brittleness, and cover frontend/API integration risk.Concept questionMedium~7 min.NETASP.NET CoreNext.jsPractice

18Full-Stack DebuggingExplains a practical debugging path across browser, Next.js layer, API, logs, database, and deployment changes.Concept questionHard~9 min.NETASP.NET CoreNext.jsPractice

19User Action TracingExplains tracing one user action across browser, frontend server, API, dependencies, logs, metrics, and safe diagnostics.Concept questionHard~9 min.NETASP.NET CoreNext.jsPractice

Next.js BFF Boundary

Hard / ~9 min

5Filtered List PageMedium / ~7 min

6Debounced SearchMedium / ~7 min

7Data Page StatesEasy / ~5 min

8Master Detail FetchingMedium / ~7 min

+11 more drills in this section

Product Features - .NET Full Stack | Aporeon