Tutorial

A tutorial for event sourcing in Python.

This tutorial introduces event-sourced aggregates and event-sourced applications.

It explains just enough of the design and the mechanics of this library to help users understand basically how things work. It expands and explains the Synopsis. It and prepares new users of the library for reading the Modules documentation.

• Tutorial - Part 1 - Getting started
  • Python classes
  • Event-sourced aggregate
  • Event-sourced application
  • Writing tests
  • Project structure
  • Exercise
  • Next steps
• Tutorial - Part 2 - Aggregates
  • Aggregates in more detail
  • “Created” events
  • Subsequent events
  • Explicitly defined event classes
  • Decorating private methods
  • Exercise
  • Next steps
• Tutorial - Part 3 - Applications
  • Applications in more detail
  • Event store
  • Repository
  • Recorder
  • Command methods
  • Query methods
  • Notification log
  • Database configuration
  • Development environment
  • SQLite environment
  • PostgreSQL environment
  • Exercise
  • Next steps