public MediatorEndpointApiDescriptionGroupCollectionProvider(MediatorEndpointCollections mediatorEndpointCollections)
{
_mediatorEndpointCollections = mediatorEndpointCollections;
}
public static IServiceCollection AddMediatREndpoints(this IServiceCollection services, IEnumerable <Type> handlerTypes, bool addHandlersWithoutHttpMethodAttribute = false, Action <MediatorEndpointOptions> configureOptions = null)
{
var endpoints = new List <MediatorEndpoint>();
foreach (var handlerType in handlerTypes)
{
var requestHandlerType = handlerType.GetInterfaces().FirstOrDefault(i => i.IsGenericType && i.GetGenericTypeDefinition() == typeof(IRequestHandler <,>));
if (requestHandlerType == null)
{
throw new InvalidOperationException($"Type ({handlerType.FullName}) is not an IReqeustHandler<,>");
}
var requestArguments = requestHandlerType.GetGenericArguments();
var requestType = requestArguments[0];
var responseType = requestArguments[1];
var requestMetadata = new MediatorEndpointMetadata(requestType, responseType);
var attributes = handlerType.GetMethod("Handle").GetCustomAttributes(false);
var httpAttributes = attributes.OfType <HttpMethodAttribute>().ToArray();
if (httpAttributes.Length == 0 && addHandlersWithoutHttpMethodAttribute)
{
var httpMethodMetadata = new HttpMethodMetadata(new[] { HttpMethods.Post });
var metadata = new List <object>(attributes);
metadata.Add(httpMethodMetadata);
metadata.Add(requestMetadata);
endpoints.Add(new MediatorEndpoint
{
Metadata = metadata,
HandlerType = requestHandlerType,
RequestType = requestMetadata.RequestType,
ResponseType = requestMetadata.ResponseType,
Uri = requestMetadata.RequestType.Name
});
}
else
{
for (var i = 0; i < httpAttributes.Length; i++)
{
var httpAttribute = httpAttributes[i];
var httpMethodMetadata = new HttpMethodMetadata(httpAttribute.HttpMethods);
string template;
if (string.IsNullOrEmpty(httpAttribute.Template))
{
template = "/" + requestType.Name;
}
else
{
template = httpAttribute.Template;
}
var metadata = new List <object>(attributes);
metadata.Add(httpMethodMetadata);
metadata.Add(requestMetadata);
endpoints.Add(new MediatorEndpoint
{
Metadata = metadata,
HandlerType = requestHandlerType,
RequestType = requestMetadata.RequestType,
ResponseType = requestMetadata.ResponseType,
Uri = template
});
}
}
}
var mediatorEndpointCollections = new MediatorEndpointCollections(endpoints);
services.AddSingleton(mediatorEndpointCollections);
if (configureOptions != null)
{
services.Configure(configureOptions);
}
return(services);
}
