EasyEvents

Making Event Sourcing easy for small applications

• .NET Core
• Strongly typed events and handlers
• Async everywhere
• Event persistence handled for you. EasyEvents stores events in SqlServer, Postgresql, the file system or in-memory (with more to come)

Raise events, then create handlers that respond to the events and modify application state in memory. When your application re-starts, replay all of the events to restore your in-memory application state with one line of code.

EasyEvents makes is easy to persist events - not state.

PM > Install-Package EasyEvents.Core

public class UserCreated : IEvent
{
    public string Stream => "user-events";
    public string UserName { get; }
    
    public UserCreated(string username) {
        UserName = username;
    }
}

public class UserCreatedHandler : IEventHandler<UserCreated>
{
    public async Task HandleEvent(UserCreated ev)
    {
        Console.WriteLine("Hello, " + ev.UserName);
    }
}

await easyEvents.RaiseEventAsync(new UserCreated("Jane"));

See the Getting Started to find out more about what EasyEvents can do.