Event Sourcing
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What is Event Sourcing?
Instead of storing just the current state of the data in a domain, use an append-only store to record the full series of actions taken on that data. The store acts as the system of record and can be used to materialize the domain objects. This can simplify tasks in complex domains, by avoiding the need to synchronize the data model and the business domain, while improving performance, scalability, and responsiveness. It can also provide consistency for transactional data, and maintain full audit trails and history that can enable compensating actions.
Free resources to learn Event Sourcing
More in stage 23: Reliability Patterns
- Reliability Patterns
- Strangler Fig
- Sidecar
- Static Content Hosting
- Leader Election
- CQRS
- Pipes & Filters
- Ambassador
- Gateway Routing
- Gateway Offloading
- Gateway Aggregation
- External Config Store
- Compute Resource Consolidation
- Backends for Frontend
- Anti-Corruption Layer
- Valet Key
- Sequential Convoy
- Static Content Hosting
- Scheduling Agent Supervisor
- Sharding
- Queue-Based Load Leveling
- Materialized View
- Publisher/Subscriber
- Index Table
- Priority Queue
- Pipes and Filters
- CQRS
- Competing Consumers
- Cache-Aside
- Choreography
- Claim Check
- Async Request Reply
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 115 of 147 in the free System Design roadmap, in stage 23, Reliability Patterns. If you are new to System Design, start from stage 1 and come back here in order; if you already know the earlier stages, this lesson stands on its own.