Sample project for Getting Started

[christianhelle]

This pull request includes significant changes to the sample project to implement a CQRS (Command Query Responsibility Segregation) pattern using the Atc.Cosmos.EventStore.Cqrs library. The most important changes include the addition of new commands, events, and projections, as well as the configuration of the Cosmos DB and Event Store.

The getting started project is described in detail in a year old blog post I wrote on https://christianhelle.com/2024/02/atc-cosmos-eventstore-cqrs.html

Commands Implementation:

• Added CreateCommand, DeleteCommand, and UpdateNameCommand along with their respective handlers to handle the creation, deletion, and updating of entities. (sample/GettingStarted/Commands/CreateCommands.cs, sample/GettingStarted/Commands/DeleteCommand.cs, sample/GettingStarted/Commands/UpdateNameCommands.cs) [1] [2] [3]

Events Implementation:

• Added new event classes: AddedEvent, AddressChangedEvent, DeletedEvent, and NameChangedEvent to represent domain events. (sample/GettingStarted/Events/AddedEvent.cs, sample/GettingStarted/Events/AddressChangedEvent.cs, sample/GettingStarted/Events/DeletedEvent.cs, sample/GettingStarted/Events/NameChangedEvent.cs) [1] [2] [3] [4]

Projections and Read Models:

• Implemented SampleProjection to update the read model based on the events. Added SampleReadModel to represent the read model and ContainerInitializer to initialize the Cosmos DB container. (sample/GettingStarted/Projections/SampleProjection.cs, sample/GettingStarted/Projections/SampleReadModel.cs, sample/GettingStarted/Projections/ContainerInitializer.cs) [1] [2] [3]

Configuration and Setup:

• Configured Cosmos DB and Event Store in Program.cs and added a ConsoleHostedService to execute commands. (sample/GettingStarted/Program.cs, sample/GettingStarted/ConsoleHostedService.cs) [1] [2]

Cleanup:

• Removed outdated configuration files such as .editorconfig, directory.build.props, and directory.build.targets. (sample/.editorconfig, sample/directory.build.props, sample/directory.build.targets) [1] [2] [3]