World 2 / Builder Zone
Build the client-side logic behind API-powered apps. Practice GET requests, error and retry states, POST feedback, API client functions, pagination, optimistic updates, empty states and a final Course API Dashboard. Clear lessons to unlock next zone. Boss Project waits at the end.
The frozen mountains test API work, auth, tokens, backend flow, and reliable data loading.
Guide: Backend Sherpa
Reward skill: Network confidence
Objective: Clear lessons, solve quests, bank XP, and open the next part of the map.
Free quest
0 / 9 lessons
Status
World
Time
Map
Lessons
Sign in to save progress and XP.
World goal: Connect the app to data and safe user access.
Skill collected: Network confidence
/course-assets/lessons/api-backend/request-lifecycle.svg
This module moves through a focused part of API and Backend. Each lesson includes a practical task, validation rules and a hidden solution.
Zone 1: Request lifecycle и GET. Clear the missions inside this zone to charge the path forward.
Mission 1
Mission 1: Жизненный цикл API-запроса. Read the briefing, solve the practice quest, and bank the XP.
Mission 1: Жизненный цикл API-запроса. Read the briefing, solve the practice quest, and bank the XP.
Mission 2: GET: загрузка списка курсов. Read the briefing, solve the practice quest, and bank the XP.
Mission 3: Error state и Retry. Read the briefing, solve the practice quest, and bank the XP.
/course-assets/lessons/api-backend/post-feedback.svg
This module moves through a focused part of API and Backend. Each lesson includes a practical task, validation rules and a hidden solution.
Zone 2: POST, API client и pagination. Clear the missions inside this zone to charge the path forward.
Mission 4: POST: отправка feedback. Read the briefing, solve the practice quest, and bank the XP.
Mission 5: API client function. Read the briefing, solve the practice quest, and bank the XP.
Mission 6: Pagination: Load more. Read the briefing, solve the practice quest, and bank the XP.
/course-assets/lessons/api-backend/optimistic-update.svg
This module moves through a focused part of API and Backend. Each lesson includes a practical task, validation rules and a hidden solution.
Zone 3: Product API patterns. Clear the missions inside this zone to charge the path forward.
Mission 7: Optimistic update. Read the briefing, solve the practice quest, and bank the XP.
Mission 8: Empty state после API. Read the briefing, solve the practice quest, and bank the XP.
Boss Level
This module moves through a focused part of API and Backend. Each lesson includes a practical task, validation rules and a hidden solution.
Boss zone: Финальный API Dashboard. This is where the world turns into a portfolio proof. Final boss project.
Boss mission: Final project: Course API Dashboard. Combine the zone patterns into one final result. Connect the app to data and safe user access.
