Event Sourcing
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What is Event Sourcing?
Event sourcing is an architectural pattern that is used to build systems that need to maintain a history of all the changes that have occurred over time. This pattern stores all changes to the system's state as a sequence of events, rather than just the current state.
In Event sourcing, all changes to the state of the system are treated as events, and these events are stored in an append-only log, also known as an event store. The current state of the system can be reconstructed from the event log at any given point in time by replaying the events from the log.
Free resources to learn Event Sourcing
More in stage 12: Architectural Patterns
Event Sourcing: common questions
Can I learn Event Sourcing in Hindi?
This lesson is written in English. Once you sign in, open it in the interactive course and ask the AI tutor to explain Event Sourcing in Hindi or Hinglish. The tutor answers from this lesson’s own text, so it stays on the syllabus, and it runs on your own Google, OpenAI or Anthropic key.
Is this Event Sourcing tutorial for beginners?
It is lesson 80 of 94 in the free Software Design and Architecture roadmap, in stage 12, Architectural Patterns. If you are new to Software Design and Architecture, start from stage 1 and come back here in order; if you already know the earlier stages, this lesson stands on its own.