private async Task ValidateAsync <TRequest>(TRequest request, IValidator <TRequest> validator)
{
var results = await validator.ValidateAsync(request);
if (!results.IsValid)
{
var message = await _handler.HandleAsync(results.Errors);
throw new RpcException(new Status(StatusCode.InvalidArgument, message));
}
}
private async Task ValidateRequest <TRequest>(TRequest request) where TRequest : class
{
if (_locator.TryGetValidator <TRequest>(out var validator))
{
var results = await validator.ValidateAsync(request);
if (!results.IsValid && results.Errors.Any())
{
var message = await _handler.HandleAsync(results.Errors);
var validationMetadata = results.Errors.ToValidationMetadata();
throw new RpcException(new Status(StatusCode.InvalidArgument, message), validationMetadata);
}
}
}
public override async Task <TResponse> UnaryServerHandler <TRequest, TResponse>(
TRequest request,
ServerCallContext context,
UnaryServerMethod <TRequest, TResponse> continuation)
{
if (_locator.TryGetValidator <TRequest>(out var validator))
{
var results = await validator.ValidateAsync(request);
if (!results.IsValid && results.Errors.Any())
{
var message = await _handler.HandleAsync(results.Errors);
var validationMetadata = results.Errors.ToValidationMetadata();
throw new RpcException(new Status(StatusCode.InvalidArgument, message), validationMetadata);
}
}
return(await continuation(request, context));
}
public override async Task <TResponse> UnaryServerHandler <TRequest, TResponse>(
TRequest request,
ServerCallContext context,
UnaryServerMethod <TRequest, TResponse> continuation)
{
if (_provider.TryGetValidator <TRequest>(out var validator))
{
var results = await validator.ValidateAsync(request);
if (!results.IsValid)
{
await _handler.HandleAsync(results.Errors, context);
var response = Expression.Lambda <Func <TResponse> >(Expression.Block(typeof(TResponse), Expression.New(typeof(TResponse)))).Compile();
return(response());
}
}
return(await continuation(request, context));
}
public override async Task <TResponse> UnaryServerHandler <TRequest, TResponse>(
TRequest request,
ServerCallContext context,
UnaryServerMethod <TRequest, TResponse> continuation)
{
if (_locator.TryGetValidator <TRequest>(out var validator))
{
var results = await validator.ValidateAsync(request);
if (!results.IsValid)
{
var message = await _handler.HandleAsync(results.Errors);
context.Status = new Status(StatusCode.InvalidArgument, message);
context.GetHttpContext().Response.Headers[GrpcProtocolConstants.StatusTrailerName] = GrpcProtocolConstants.StatusTrailerInvalidArgument;
return(ObjectCreator <TResponse> .Empty);
}
}
return(await continuation(request, context));
}
