World 8 / Builder Zone

Authentication

Learn the building blocks of client authentication: auth flow, login validation, fake auth API, access and refresh token model, session state, protected screens, session restore, refresh token concept and a final Auth Client App. Clear lessons to unlock next zone. Boss Project waits at the end.

Enter World 8
NP
World entranceAPI MountainsBiome: Ice

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.

Route progress0%

API Mountains

Connect the app to data and safe user access.

Route progress0%
World route

What you will build

Add registration, sign-in, tokens, and protected screens.

What you should know

World 7: API and Backend

Recommended previous world

World 7: API and Backend

Next world

World 9: State Management

Status

Free

World

World 2

Time

9 h 15 min

Map

3 zones / 9 lessons

Lessons

0 / 9 lessons

Sign in to save progress and XP.

Quest mapAPI Mountains0/9

Token Frostguard

01Current
NP

Quest

Mission 1

Mission 1: Map auth-flow. Read the briefing, solve the practice quest, and bank the XP.

+40 XP
02Locked

Quest

Mission 2

Mission 2: Login form validation. Read the briefing, solve the practice quest, and bank the XP.

+55 XP
03Locked

Challenge

Mission 3

Mission 3: Fake Auth API. Read the briefing, solve the practice quest, and bank the XP.

+65 XP
04Locked

Quest

Mission 4

Mission 4: Token model: access и refresh. Read the briefing, solve the practice quest, and bank the XP.

+55 XP
05Locked

Quest

Mission 5

Mission 5: Session state. Read the briefing, solve the practice quest, and bank the XP.

+60 XP
06Locked

Reward

Mission 6

Mission 6: Protected screen. Read the briefing, solve the practice quest, and bank the XP.

+55 XP
07Locked

Boss

Boss mission

Boss mission: Restore session. Combine the zone patterns into one final result. Connect the app to data and safe user access.

+65 XP
08Locked

Boss

Boss mission

Boss mission: Refresh token concept. Combine the zone patterns into one final result. Connect the app to data and safe user access.

+70 XP
09Locked

Boss

Boss mission

Boss mission: Final project: Auth Client App. Combine the zone patterns into one final result. Connect the app to data and safe user access.

+100 XP

Mission 1

Mission 1: Map auth-flow. Read the briefing, solve the practice quest, and bank the XP.

Skill collectedNetwork confidence
Rewards
Final objectiveAPI Mountains

Token Frostguard

World goal: Connect the app to data and safe user access.

Skill collected: Network confidence

Level 1

Auth flow и login

This module moves through a focused part of Authentication. Each lesson includes a practical task, validation rules and a hidden solution.

Zone 1

Zone 1: Auth flow и login. Clear the missions inside this zone to charge the path forward.

Level 1NEXT LEVEL+40 XP

Map auth-flow

Mission 1: Map auth-flow. Read the briefing, solve the practice quest, and bank the XP.

40 min
Enter level
Level 2LOCKED+55 XP

Login form validation

Mission 2: Login form validation. Read the briefing, solve the practice quest, and bank the XP.

55 minComplete previous level
Level 3LOCKED+65 XP

Fake Auth API

Mission 3: Fake Auth API. Read the briefing, solve the practice quest, and bank the XP.

1 h 5 minComplete previous level
Level 2

Session, tokens и protected UI

This module moves through a focused part of Authentication. Each lesson includes a practical task, validation rules and a hidden solution.

Zone 2

Zone 2: Session, tokens и protected UI. Clear the missions inside this zone to charge the path forward.

Level 1LOCKED+55 XP

Token model: access и refresh

Mission 4: Token model: access и refresh. Read the briefing, solve the practice quest, and bank the XP.

55 minComplete previous level
Level 2LOCKED+60 XP

Session state

Mission 5: Session state. Read the briefing, solve the practice quest, and bank the XP.

1 hComplete previous level
Level 3LOCKED+55 XP

Protected screen

Mission 6: Protected screen. Read the briefing, solve the practice quest, and bank the XP.

55 minComplete previous level
Boss LevelBoss Project

Restore, refresh и финальный app

This module moves through a focused part of Authentication. Each lesson includes a practical task, validation rules and a hidden solution.

Boss zone

Boss zone: Restore, refresh и финальный app. This is where the world turns into a portfolio proof. Final boss project.

Level 1Boss LevelLOCKED+65 XP

Restore session

Boss mission: Restore session. Combine the zone patterns into one final result. Connect the app to data and safe user access.

1 h 5 minFinal QuestComplete previous level
Level 2Boss LevelLOCKED+70 XP

Refresh token concept

Boss mission: Refresh token concept. Combine the zone patterns into one final result. Connect the app to data and safe user access.

1 h 10 minFinal QuestComplete previous level
Level 3Boss LevelLOCKED+100 XP

Final project: Auth Client App

Boss mission: Final project: Auth Client App. Combine the zone patterns into one final result. Connect the app to data and safe user access.

1 h 30 minFinal QuestComplete previous level

Have a question or found an issue?

Your message will include this course context.

XP PRACTICE

Reinforce what you learned

Need a break from lessons? Play a short code game or test your speed in the Arena.

Open mini-gamesOpen Arena