public async Task Run()
{
var userProjection = new BaseMartenProjection <User, Guid>();
userProjection.AddEvent <UserCreated>(@event => @event.EntityId, (user, e) =>
{
user.Id = e.EntityId;
user.UserName = e.Data?.UserName;
user.Active = true;
});
userProjection.AddEvent <UserDeleted>(@event => @event.EntityId, (user, _) =>
{
user.Active = false;
});
var contentProjection = new ContentProjection();
contentProjection.AddEvent <ContentCreated>(@event => @event.EntityId, (content, e) =>
{
content.Id = e.EntityId;
content.ContentMetadata = e.Data?.ContentMetadata;
content.ContentCdnLink = e.Data?.ContentCdnLink;
content.PlayCount = e.Data?.PlayCount ?? 0;
content.Active = true;
});
contentProjection.AddEvent <ContentDeleted>(@event => @event.EntityId, (content, _) =>
{
content.Active = false;
});
contentProjection.AddEvent <ContentPlayed>(@event => @event.Data.ViewedContent.Id, (content, _) =>
{
content.PlayCount++;
});
var playedContentProjection = new PlayedContentProjection();
playedContentProjection.AddEvent <ContentPlayed>(@event => @event.EntityId, (playedContent, e) =>
{
playedContent.Id = e.EntityId;
playedContent.AssignUser(e.Data?.ViewedUser);
playedContent.AssignContent(e.Data?.ViewedContent);
playedContent.Active = true;
});
playedContentProjection.AddEvent <ContentPlayDeleted>(@event => @event.EntityId, (playedContent, _) =>
{
playedContent.Active = false;
});
await _EventStore.AddProjection(playedContentProjection);
await _EventStore.AddProjection(contentProjection);
await _EventStore.AddProjection(userProjection);
await _EventStore.StartProjectionDaemon();
var collection = await _EventStore.GetCollection();
var contents = await collection.Query <Content>();
Console.WriteLine("Contents");
foreach (var content in contents)
{
Console.WriteLine(content.Id);
}
Console.WriteLine("Users");
var users = await collection.Query <User>();
foreach (var user in users)
{
Console.WriteLine(user.Id);
}
Console.WriteLine("Played Contents");
var playedContents = await collection.Query <PlayedContent>();
foreach (var playedContent in playedContents)
{
Console.WriteLine(playedContent.Id);
}
}