private void AddMethodCore <TRequest, TResponse>(
Method <TRequest, TResponse> method,
HttpRule httpRule,
string pattern,
string httpVerb,
string body,
string responseBody,
MethodDescriptor methodDescriptor)
where TRequest : class
where TResponse : class
{
try
{
if (!pattern.StartsWith('/'))
{
// This validation is consistent with grpc-gateway code generation.
// We should match their validation to be a good member of the eco-system.
throw new InvalidOperationException($"Path template must start with /: {pattern}");
}
var(invoker, metadata) = CreateModelCore <UnaryServerMethod <TService, TRequest, TResponse> >(
method.Name,
new[] { typeof(TRequest), typeof(ServerCallContext) },
httpVerb,
httpRule,
methodDescriptor);
var methodContext = global::Grpc.Shared.Server.MethodOptions.Create(new[] { _globalOptions, _serviceOptions });
var routePattern = RoutePatternFactory.Parse(pattern);
var routeParameterDescriptors = ServiceDescriptorHelpers.ResolveRouteParameterDescriptors(routePattern, methodDescriptor.InputType);
ServiceDescriptorHelpers.ResolveBodyDescriptor(body, methodDescriptor, out var bodyDescriptor, out var bodyFieldDescriptors, out var bodyDescriptorRepeated);
FieldDescriptor?responseBodyDescriptor = null;
if (!string.IsNullOrEmpty(responseBody))
{
responseBodyDescriptor = methodDescriptor.OutputType.FindFieldByName(responseBody);
if (responseBodyDescriptor == null)
{
throw new InvalidOperationException($"Couldn't find matching field for response body '{responseBody}' on {methodDescriptor.OutputType.Name}.");
}
}
var unaryInvoker = new UnaryServerMethodInvoker <TService, TRequest, TResponse>(invoker, method, methodContext, _serviceActivator);
var unaryServerCallHandler = new UnaryServerCallHandler <TService, TRequest, TResponse>(
unaryInvoker,
responseBodyDescriptor,
bodyDescriptor,
bodyDescriptorRepeated,
bodyFieldDescriptors,
routeParameterDescriptors);
_context.AddMethod <TRequest, TResponse>(method, routePattern, metadata, unaryServerCallHandler.HandleCallAsync);
}
catch (Exception ex)
{
throw new InvalidOperationException($"Error binding {method.Name} on {typeof(TService).Name} to HTTP API.", ex);
}
}
private void AddMethodCore <TRequest, TResponse>(
Method <TRequest, TResponse> method,
string pattern,
string httpVerb,
string body,
string responseBody,
MethodDescriptor methodDescriptor)
where TRequest : class
where TResponse : class
{
try
{
var(invoker, metadata) = CreateModelCore <UnaryServerMethod <TService, TRequest, TResponse> >(
method.Name,
new[] { typeof(TRequest), typeof(ServerCallContext) },
httpVerb);
var methodContext = global::Grpc.Shared.Server.MethodOptions.Create(new[] { _globalOptions, _serviceOptions });
var routeParameterDescriptors = ResolveRouteParameterDescriptors(pattern, methodDescriptor.InputType);
MessageDescriptor?bodyDescriptor = null;
FieldDescriptor? bodyFieldDescriptor = null;
if (!string.IsNullOrEmpty(body))
{
if (!string.Equals(body, "*", StringComparison.Ordinal))
{
bodyFieldDescriptor = methodDescriptor.InputType.FindFieldByName(body);
if (bodyFieldDescriptor == null)
{
throw new InvalidOperationException($"Couldn't find matching field for body '{body}' on {methodDescriptor.InputType.Name}.");
}
bodyDescriptor = bodyFieldDescriptor.ContainingType;
}
else
{
bodyDescriptor = methodDescriptor.InputType;
}
}
FieldDescriptor?responseBodyDescriptor = null;
if (!string.IsNullOrEmpty(responseBody))
{
responseBodyDescriptor = methodDescriptor.OutputType.FindFieldByName(responseBody);
if (responseBodyDescriptor == null)
{
throw new InvalidOperationException($"Couldn't find matching field for response body '{responseBody}' on {methodDescriptor.OutputType.Name}.");
}
}
var unaryInvoker = new UnaryServerMethodInvoker <TService, TRequest, TResponse>(invoker, method, methodContext, _serviceActivator);
var unaryServerCallHandler = new UnaryServerCallHandler <TService, TRequest, TResponse>(
unaryInvoker,
responseBodyDescriptor,
bodyDescriptor,
bodyFieldDescriptor,
routeParameterDescriptors);
_context.AddMethod <TRequest, TResponse>(method, RoutePatternFactory.Parse(pattern), metadata, unaryServerCallHandler.HandleCallAsync);
}
catch (Exception ex)
{
throw new InvalidOperationException($"Error binding {method.Name} on {typeof(TService).Name} to HTTP API.", ex);
}
}
private void AddMethodCore <TRequest, TResponse>(
Method <TRequest, TResponse> method,
string pattern,
string httpVerb,
string body,
string responseBody,
MethodDescriptor methodDescriptor)
where TRequest : class
where TResponse : class
{
try
{
if (!pattern.StartsWith('/'))
{
// This validation is consistent with grpc-gateway code generation.
// We should match their validation to be a good member of the eco-system.
throw new InvalidOperationException($"Path template must start with /: {pattern}");
}
var(invoker, metadata) = CreateModelCore <UnaryServerMethod <TService, TRequest, TResponse> >(
method.Name,
new[] { typeof(TRequest), typeof(ServerCallContext) },
httpVerb);
var methodContext = global::Grpc.Shared.Server.MethodOptions.Create(new[] { _globalOptions, _serviceOptions });
var routeParameterDescriptors = ResolveRouteParameterDescriptors(pattern, methodDescriptor.InputType);
MessageDescriptor? bodyDescriptor = null;
List <FieldDescriptor>?bodyFieldDescriptors = null;
var bodyDescriptorRepeated = false;
if (!string.IsNullOrEmpty(body))
{
if (!string.Equals(body, "*", StringComparison.Ordinal))
{
if (!ServiceDescriptorHelpers.TryResolveDescriptors(methodDescriptor.InputType, body, out bodyFieldDescriptors))
{
throw new InvalidOperationException($"Couldn't find matching field for body '{body}' on {methodDescriptor.InputType.Name}.");
}
var leafDescriptor = bodyFieldDescriptors.Last();
if (leafDescriptor.IsRepeated)
{
// A repeating field isn't a message type. The JSON parser will parse using the containing
// type to get the repeating collection.
bodyDescriptor = leafDescriptor.ContainingType;
bodyDescriptorRepeated = true;
}
else
{
bodyDescriptor = leafDescriptor.MessageType;
}
}
else
{
bodyDescriptor = methodDescriptor.InputType;
}
}
FieldDescriptor?responseBodyDescriptor = null;
if (!string.IsNullOrEmpty(responseBody))
{
responseBodyDescriptor = methodDescriptor.OutputType.FindFieldByName(responseBody);
if (responseBodyDescriptor == null)
{
throw new InvalidOperationException($"Couldn't find matching field for response body '{responseBody}' on {methodDescriptor.OutputType.Name}.");
}
}
var unaryInvoker = new UnaryServerMethodInvoker <TService, TRequest, TResponse>(invoker, method, methodContext, _serviceActivator);
var unaryServerCallHandler = new UnaryServerCallHandler <TService, TRequest, TResponse>(
unaryInvoker,
responseBodyDescriptor,
bodyDescriptor,
bodyDescriptorRepeated,
bodyFieldDescriptors,
routeParameterDescriptors);
_context.AddMethod <TRequest, TResponse>(method, RoutePatternFactory.Parse(pattern), metadata, unaryServerCallHandler.HandleCallAsync);
}
catch (Exception ex)
{
throw new InvalidOperationException($"Error binding {method.Name} on {typeof(TService).Name} to HTTP API.", ex);
}
}
