Backend

• Dapr
  • PubSub Messaging Using Dapr
    • Technologies
    • Basic Usage
      • Include Necessary Libraries
      • Subscribe to a Topic
      • Publish to a Topic
    • Troubleshooting
      • My Dapr Messages are not getting delivered
        • Error:
        • Solution
      • My Integration Test fail due to Dapr Exceptions
        • Error
        • Solution 1
        • Solution 2
  • Dapr Service Topic Overview
    • Events by service
    • Topic: Course Changed
      • Interface Description
      • Involved Services
      • Message Content
    • Topic: Chapter Changed
      • Interface Description
      • Involved Services
      • Message Content
    • Topic: Content Changed
      • Interface Description
      • Involved Services
      • Message Content
    • Topic: Content Progressed
      • Interface Description
      • Involved Services
      • Message Content
    • Topic: User Progress Updated
      • Interface Description
      • Involved Services
      • Message Content

• Ports
  • Currently used Ports
• Sorting, Filtering, and Pagination
  • GraphQL Schema
    • Filter
  • Implementation
• List of libraries for all the services.
• Authentication, Authorization & Accessing Current User Data From Services
  • Authentication
  • Authorization
  • Accessing User Data From Services
• Authorization Concept
  • General Assumptions, Conditions, and Decisions Regarding the Concept
  • User Roles
    • Global Roles
    • Course-specific Roles
  • Basic Components
    • Keycloak
    • Gateway
    • UserService
    • Course Service
    • Other Services
  • Authorization Concept
  • Handling GraphQL requests where the user only has permissions for some subitems
  • Speeding up nested GraphQL queries
• Coding Guidelines
  • Package structure
  • Style Guide
    • Java
      • Special Style Rules
    • GraphQL
  • How To…
    • How to validate input?
      • Field level validation
      • Class level validation
      • Naming of services
• Deletion Concept
  • Data Dependencies
  • Deletion events
  • Dapr PubSub
• Get Started
  • Prerequisites
• Setting Up the Dev Environment
  • Cloning
  • Deployment
• Some Hints/Common Issues
  • Error Unsupported class file major version 64 when compiling
• Debugging Services
• Unified GraphQL API
  • GraphQL Mesh Concept
  • Further Information/Guides For GraphQL Mesh
• Automatically generate graphQL API docs
• Adding a new service
• Static code analysis
  • Tool-based code analysis
  • How to use sonarqube
• Test strategy overview
  • General
    • Review
  • Backend
  • Frontend
• Backend testing
  • Unit testing
    • What to test
    • How to test
    • Mocking
    • Naming conventions
    • Example
  • Integration/API testing
    • What to test
    • How to test
    • Example