Tutorial

This chapter shows how to start to develop event-sourced applications with bestagon.

Tutorial:

• Architectural overview
  • System
  • Applications and Projections
  • Aggregate
• Aggregate
  • Domain events
  • Types registration
  • Initialization of the aggregate
  • Aggregate ID
  • Aggregate creation
  • Adding business logic
• Application
  • Application name
  • Event-sourced repository
  • Checkpoint store
  • Defining use cases
  • Reaction to events
• Projection
  • Creating abstract interface
  • Query handlers
  • Initialization
  • Populating projection
  • Querying projection
  • Dropping projection
• Event-Sourced System
  • Defining the system
  • System initialization
  • Routing commands and queries
• Serving with FastAPI
  • System configuration
  • FastAPI instance and system initialization
  • Defining endpoints
  • Serving the system