How to set the max receive message length in Google Cloud request? - google-cloud-platform

Question

I have the following Google Cloud call:
var builder = new TextToSpeechClientBuilder();
builder.JsonCredentials = #"...";
var client = builder.Build();
var data = client.SynthesizeSpeech(new SynthesisInput { Ssml = text },
new VoiceSelectionParams { LanguageCode = culture.TwoLetterISOLanguageName },
new AudioConfig { AudioEncoding = AudioEncoding.Linear16, SampleRateHertz = 8000 }).AudioContent;
It throws the following exception:
Grpc.Core.RpcException: 'Status(StatusCode="ResourceExhausted", Detail="Received message larger than max (4675411 vs. 4194304)")'
The request is less than 2000 bytes, so it seems that the response is too big. The server wants to send the response, but the client can't accept it.
How to increase this limit?
UPDATE: Since version 2.2.0 it is possible to set the max response size:
var channelOptions = GrpcChannelOptions.Empty
.WithKeepAliveTime(TimeSpan.FromMinutes(1))
.WithEnableServiceConfigResolution(false)
.WithMaxReceiveMessageSize(1024 * 1024 * 1024);
var builder = new TextToSpeechClientBuilder();
builder.JsonCredentials = jsonCredentials;
builder.GrpcChannelOptions = channelOptions;

Answer 1

In order to overcome the error Received message larger than max (4675411 vs. 4194304), you need to set the inbound message size to a greater value. You can do it when instantiating your builder, similarly as when creating a channel. Below, it is how you can do it:
textToSpeechClient = TextToSpeechClient.create(TextToSpeechSettings
.newBuilder()
.setTransportChannelProvider(
TextToSpeechSettings.defaultGrpcTransportProviderBuilder()
.setMaxInboundMessageSize(8790801)
.build())
.build());
Here is the documentation for the setMaxInboundMessageSize method.
UPDATE: As I understand you want to use C# and since I could not find a method to set the inbound's message size, such as in Java (above). I have opened a a Public issue within Google. Although, I do not have an ETA for it, you can keep track here.