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Day 5: Full Stack Development Part 2 - Authentication and Device Management

Schedule: May 30, 2025 (9:30-12:00)​

Session Timeline​

00:0000:1500:3000:4501:0001:1501:3001:4502:0002:1502:30Auth Implementation Device Enrollment Break Device Status Device Control Day 5 Schedule

Authentication Flow​

DatabaseBackendAppUserDatabaseBackendAppUserEnter CredentialsLogin RequestValidate UserUser DataJWT + User InfoStore TokenNavigate to Home

Detailed Agenda​

1. Authentication Implementation (9:30 - 10:05)​

Login Flow​

InvalidValidSuccessError

Login Screen

Validate Input

Show Error

API Request

Server Response

Store Token

Show Error

Navigate Home

Implementation Steps​

  • Form validation
  • API integration
  • Token management
  • Error handling

2. Device Enrollment Flow (10:05 - 10:40)​

Enrollment Process​

NewRegistered

Scan QR Code

Validate Device

Device Status

Configure WiFi

Show Error

Connect to Network

Register Device

Confirm Setup

Key Features​

  • QR code scanning
  • WiFi configuration
  • Device registration
  • Setup confirmation

3. Break (10:40 - 10:55)​

4. Device Status Management (10:55 - 11:25)​

Status Architecture​

AppServerDevice

Status Monitor

MQTT Client

MQTT Broker

Status Handler

Database

Status Listener

UI Updates

Implementation Details​

  • Real-time updates
  • Status persistence
  • UI state management
  • Offline handling

5. Device Control Implementation (11:25 - 12:00)​

Control Flow​

DeviceMQTTBackendAppDeviceMQTTBackendAppControl RequestPublish CommandForward CommandStatus UpdateForward StatusStatus Notification

Features Implementation​

  • Command interface
  • Status feedback
  • Error handling
  • Retry mechanism

Learning Outcomes​

  • Authentication best practices
  • Device management patterns
  • Real-time communication
  • State management

Prerequisites for Day 6​

  • Completed authentication
  • Working device enrollment
  • Status monitoring setup
  • Control interface implementation

Resources​

  • Authentication flow diagrams
  • API documentation
  • MQTT topic structure
  • Testing scenarios