private void CreateGrpcMethodForCqrsChannel <TRequest, TResponse, TChRequest, TChResponse, TChResponseEnvelope>(GrpcServer server, string serverId, CqrsChannelInfo info)
where TRequest : class
where TResponse : class
where TChRequest : class
where TChResponse : class
where TChResponseEnvelope : class
{
var builder = ServerServiceDefinition.CreateBuilder();
var method = GrpcMethodFactoryUtil.CreateGrpcMethod <TChRequest, TChResponseEnvelope>(info.ServiceName, info.MethodName);
var handler = new UnaryServerMethod <TChRequest, TChResponseEnvelope>(async(chReq, ctx) => {
// timeout
var cancellationToken = ctx.CancellationToken.AddTimeout(_configuration.TimeoutMs);
// execute in scope
using (Scope scope = AsyncScopedLifestyle.BeginScope(_container))
{
// execute method
var chRspEnv = await GrpcChannelHandlerUtil.HandleChannelRequest <TRequest, TResponse, TChRequest, TChResponse, TChResponseEnvelope>(
scope.Container,
_mapper,
ctx,
serverId,
info,
chReq,
cancellationToken);
return(chRspEnv);
}
});
// add method to server
builder.AddMethod(method, handler);
var service = builder.Build();
server.Services.Add(service);
}
public void OnServiceMethodDiscovery(ServiceMethodProviderContext <GrpcService> context)
{
// mapper
var mapperValidator = _cfg.MapperValidator != null?Activator.CreateInstance(_cfg.MapperValidator) as IPropertyMapValidator : null;
var mapper = _cqrs.CreateMapper(mapperValidator);
// set server id for logging
var serverId = !string.IsNullOrWhiteSpace(_cfg.ServerId) ? _cfg.ServerId : Assembly.GetEntryAssembly().FullName.Split(',')[0];
// create methos
var methodAddGeneric = GetType().GetMethods(BindingFlags.NonPublic | BindingFlags.Instance).First(x => x.Name == nameof(AddMethod));
_cqrs.ToCqrsChannelInfo().ToList().ForEach(x => {
var method = GrpcMethodFactoryUtil.CreateGrpcMethodGeneric(x);
var invokeMethod = GrpcServerMethodFactoryUtil.CreateServerMethodGeneric(_container, serverId, x, mapper, _cfg.TimeoutMs);
var methodAdd = methodAddGeneric.MakeGenericMethod(x.ChReqType, x.ChRspEnvType);
methodAdd.Invoke(this, new object[] { context, method, invokeMethod });
});
}
