public async Task Invoke(HttpContext httpContext)
{
object result = null;
var errMessage = string.Empty;
var httpStatusCode = HttpStatusCode.OK;
var buildRequest = grpcRequestBuilder.BuildRequest(httpContext);
if (buildRequest.IsError)
{
errMessage = "bad request";
httpStatusCode = HttpStatusCode.BadRequest;
Logger.LogWarning(errMessage);
}
else
{
try
{
var channel = grpcPool.GetChannel(new ServiceEndpoint(httpContext.Items.DownstreamRequest().Host, httpContext.Items.DownstreamRequest().Port));
var client = new MethodDescriptorClient(channel);
result = await client.InvokeAsync(buildRequest.Data.GrpcMethod, buildRequest.Data.Headers, buildRequest.Data.RequestMessage);
}
catch (RpcException ex)
{
httpStatusCode = HttpStatusCode.InternalServerError;
errMessage = $"rpc exception.";
Logger.LogError($"{ex.StatusCode}--{ex.Message}", ex);
}
catch (Exception ex)
{
httpStatusCode = HttpStatusCode.ServiceUnavailable;
errMessage = $"error in request grpc service.";
Logger.LogError($"{errMessage}--{httpContext.Items.DownstreamRequest().ToUri()}", ex);
}
}
OkResponse <GrpcHttpContent> httpResponse;
if (string.IsNullOrEmpty(errMessage))
{
httpResponse = new OkResponse <GrpcHttpContent>(new GrpcHttpContent(result));
}
else
{
httpResponse = new OkResponse <GrpcHttpContent>(new GrpcHttpContent(errMessage));
}
httpContext.Response.ContentType = "application/json";
httpContext.Items.UpsertDownstreamResponse(new DownstreamResponse(httpResponse.Data, httpStatusCode, httpResponse.Data.Headers, "OcelotGrpcHttpMiddleware"));
// httpContext.DownstreamResponse = new DownstreamResponse(httpResponse.Data, httpStatusCode, httpResponse.Data.Headers, "OcelotGrpcHttpMiddleware");
}
public void GetSslChannelTest()
{
IEnumerable <string> emptyScopes = Enumerable.Empty <string>();
ServiceEndpoint endpoint = new ServiceEndpoint(TestCredentials.DefaultHostOverride, SslPort);
var pool = new GrpcPool(emptyScopes);
var channel = pool.GetChannel(endpoint, clientCredentials);
var client = new Greeter.GreeterClient(channel);
String user = "******";
var reply = client.SayHello(new HelloRequest {
Name = user
});
Console.WriteLine("Greeting: " + reply.Message);
channel.ShutdownAsync().Wait();
Assert.AreEqual(reply.Message, "leenux=Hello you");
}