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Added full Optimistic Concurrency handling in all samples with integration to ETag
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@oskardudycz oskardudycz released this 03 Mar 10:09
· 455 commits to main since this release
v11.0.0
1134aa8

Added optimistic concurrency to samples and did a huge all-around refactoring.

The most significant changes:

  • Added OptimisticConcurrencyMiddleware and related classes to support full flow based on the ETag. Applied both for Marten and EventStoreDB samples,
  • Aligned convention around Records (use them for DTOs with static factory method for validation),
  • Introduced StreamEvent for EventStoreDB subscriptions to gather information about stream revision and global position. That can be used for idempotency checks in projections.
  • Made MartenExternalProjection, EntityFrameworkProjection idempotent,
  • Merged EventStoreDB improvements from Simple EventStoreDB examples into Core project,
  • Added NoMediatorEventBus to not rely on the marker interfaces need etc.
  • Aligned ECommerce samples:
    • API structure and models
    • The same set of integration tests,
    • Naming and structure conventions
  • Added CorrelationIdMiddleware and plugged it initially. More changes will come in the follow-up PR,
  • Unified background processing for ESDB Subscriptions and Kafka Consumers

See more in: #100.

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