Adding convenience interface for void handlers

jbogard · Apr 5, 2018 · e000bfe · e000bfe
1 parent 9e9fbaa
commit e000bfe
Showing 1 changed file with 13 additions and 2 deletions.
diff --git a/src/MediatR/IRequestHandler.cs b/src/MediatR/IRequestHandler.cs
@@ -20,6 +20,17 @@ public interface IRequestHandler<in TRequest, TResponse>
         Task<TResponse> Handle(TRequest request, CancellationToken cancellationToken);
     }
 
+    /// <summary>
+    /// Defines a handler for a request with a void (<see cref="Unit" />) response.
+    /// You do not need to register this interface explicitly with a container as it inherits from the base <see cref="IRequestHandler{TRequest, TResponse}" /> interface.
+    /// </summary>
+    /// <typeparam name="TRequest">The type of request being handled</typeparam>
+    public interface IRequestHandler<in TRequest> : IRequestHandler<TRequest, Unit>
+        where TRequest : IRequest<Unit>
+    {
+    }
+
+
     /// <summary>
     /// Wrapper class for a handler that asynchronously handles a request and returns a response, ignoring the cancellation token
     /// </summary>
@@ -43,7 +54,7 @@ public Task<TResponse> Handle(TRequest request, CancellationToken cancellationTo
     /// Wrapper class for a handler that asynchronously handles a request and does not return a response, ignoring the cancellation token
     /// </summary>
     /// <typeparam name="TRequest">The type of request being handled</typeparam>
-    public abstract class AsyncRequestHandler<TRequest> : IRequestHandler<TRequest, Unit>
+    public abstract class AsyncRequestHandler<TRequest> : IRequestHandler<TRequest>
         where TRequest : IRequest
     {
         public async Task<Unit> Handle(TRequest request, CancellationToken cancellationToken)
@@ -83,7 +94,7 @@ public Task<TResponse> Handle(TRequest request, CancellationToken cancellationTo
     /// Wrapper class for a handler that synchronously handles a request does not return a response
     /// </summary>
     /// <typeparam name="TRequest">The type of request being handled</typeparam>
-    public abstract class RequestHandler<TRequest> : IRequestHandler<TRequest, Unit>
+    public abstract class RequestHandler<TRequest> : IRequestHandler<TRequest>
         where TRequest : IRequest
     {
         public Task<Unit> Handle(TRequest request, CancellationToken cancellationToken)