LawnDart 0.4.0-alpha.7

LawnDart

Core interfaces, abstractions, and building blocks for the LawnDart runtime. This is the foundation package — all other LawnDart packages depend on it.

What's included

• IEventStore — the typed session interface. Backends implement IEventLog; UseInMemory() and UseSqlServer() live in the EventSourcing packages, not here
• IEvent / ICommand / IState — base interfaces for your domain types
• AggregateRoot — base class for aggregate roots; apply events and track uncommitted changes
• IAggregateRepository — load and save aggregates against any IEventStore implementation
• IBoundedContextEventStore — named handle to a full context stack
• BoundedContextBuilder — fluent builder returned by services.AddBoundedContext(contextName)
• IDcbRepository — Dynamic Consistency Boundary (DCB) pattern support
• IReactor / IEventProcessor / ITaskProcessor — hosted pattern contracts
• ICommandHandler — app-facing command dispatch
• ICommandDispatcher — routes reactor/processor commands to ICommandHandler<T> (same LawnDart.Messaging namespace as MessageContext; EventSourcing registers ContextAwareCommandDispatcher)
• IProjector — optional Event → State stub (ProjectAsync). Lightweight does not call it; use ProjectionBase for the shipped host, or hand-roll your own loop
• Snapshots — ISnapshotStore, IDcbSnapshotStore, ISnapshotStrategy, built-in strategies
• Authorization — IAuthorizationProvider, attributes, AuthorizationService
• Metadata — IMetadataProvider, ITenantContextProvider, EventMetadata, CommandMetadata
• Tagging — ITagProvider, [Tag] attribute
• Serialization — IEventSerializer (ReadOnlyMemory<byte>), [PropertyOrder]
• Event session — EventSession maps IEvent ↔ AppendEvent / RecordedEvent
• Outbox — IOutboxWriter, IOutboxPublisher, OutboxMessage

Installation

dotnet add package LawnDart --prerelease

Getting started

services.AddLawnDart();

Optionally configure options and provide a tenant context:

services.AddLawnDart(options =>
{
    options.RequireTenantId = false;
});

services.AddTenantContextProvider<MyTenantContextProvider>();

Package dependencies

• Microsoft.Extensions.DependencyInjection
• Microsoft.Extensions.Logging.Abstractions
• Microsoft.Extensions.Options