05-GettingStateFromEvents.Marten

Exercise 05 - Getting the current entity state from events using Marten

Having a defined structure of events and an entity representing the shopping cart from the first exercise, fill a GetShoppingCart function that will rebuild the current state from events.

If needed you can modify the events or entity structure.

There are two variations:

• using mutable entities: Mutable/GettingStateFromEventsTests.cs,
• using fully immutable structures: Immutable/Solution1/GettingStateFromEventsTests.cs.

Select your preferred approach (or both) to solve this use case. If needed you can modify entities or events.

Prerequisites

Run docker compose script from the main workshop repository to start Postgres instance.

docker compose up

After that you can use PG Admin (IDE for Postgres) to see how tables and data look like. It's available at: http://localhost:5050.

• Login: [email protected], Password: admin
• To connect to server click right mouse on Servers, then Register Server and use host: postgres, user: postgres, password: Password12!