src/ApiGateways/Mobile.Bff.Shopping/aggregator/Infrastructure/GrpcExceptionInterceptor.cs

（完整代码） 1KB 

namespace Microsoft.eShopOnContainers.Mobile.Shopping.HttpAggregator.Infrastructure;

public class GrpcExceptionInterceptor : Interceptor
{
    private readonly ILogger<GrpcExceptionInterceptor> _logger;

    public GrpcExceptionInterceptor(ILogger<GrpcExceptionInterceptor> logger)
    {
        _logger = logger;
    }

    public override AsyncUnaryCall<TResponse> AsyncUnaryCall<TRequest, TResponse>(
        TRequest request,
        ClientInterceptorContext<TRequest, TResponse> context,
        AsyncUnaryCallContinuation<TRequest, TResponse> continuation)
    {
        var call = continuation(request, context);

        return new AsyncUnaryCall<TResponse>(HandleResponse(call.ResponseAsync), call.ResponseHeadersAsync, call.GetStatus, call.GetTrailers, call.Dispose);
    }

    private async Task<TResponse> HandleResponse<TResponse>(Task<TResponse> t)
    {
        try
        {
            var response = await t;
            return response;
        }
        catch (RpcException e)
        {
            _logger.LogError("Error calling via grpc: {Status} - {Message}", e.Status, e.Message);
            return default;
        }
    }
}

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