EventStore Implementation

[hyunbin7303]

Event Sourcing is the persistence mechanism where each state transition for a given entity is represented as a domain event gets persisted to an event database. When the entity state mutates, a new event is produced and saved. When we need to restore the entity state, we read all the events for that entity and apply each event to change the state, reaching the correct final state of the entity when all available events are read and applied.

• Define where it needs to be built ( Domain? Application? infra?)
• Define where we are going to use this method. (Every handler?)

Todo

• [ ] Need to store Specific events into the Write db.

[hyunbin7303]

Read this : https://www.eventstore.com/blog/what-is-event-sourcing

[hyunbin7303]

Read this : https://chaitanyasuvarna.wordpress.com/2021/05/30/event-sourcing-pattern-in-net-core/

[hyunbin7303]

Use this one for the project for now https://github.com/bolicd/eventstore/blob/1fd6faa1b4751d83e065c3df32c7a4a8b0e5ef7b/Infrastructure/Repositories/IEventStore.cs#L7

[hyunbin7303]

It stores all events that occurred in your application which led to the current state.

There is an interface which routes commands to the write model. https://medium.com/digitalfrontiers/the-good-the-bad-and-the-ugly-how-to-choose-an-event-store-f1f2a3b70b2d