Python: Can max receive message length be changed?

[Bu Sun Kim]

grpc-java appears to have a `maxInboundMessageSize` https://grpc.github.io/grpc-java/javadoc/io/grpc/ManagedChannelBuilder.html#maxInboundMessageSize-int- that allows the max inbound message size to be changed.

Is there a similar option for Python?

I see https://groups.google.com/forum/#!searchin/grpc-io/max$20message$20size$20python%7Csort:date/grpc-io/HPLqOjAq2XI/mWrlGZ8cAgAJ but it seems to be for max send message size.

Context:

Some requests to the Cloud Text-to-Speech API result in responses that exceed the 4MB default: https://github.com/googleapis/python-texttospeech/issues/5

Googlers see internal issue 170125537

[Lidi Zheng]

Yes. You can set the inbound (receiving) message size via a channel argument "grpc.max_receive_message_length" (see definition)

Here is an example for how to specify channel arguments: https://github.com/grpc/grpc/blob/master/examples/python/helloworld/greeter_client_with_options.py#L31

The unit for "grpc.max_receive_message_length" is bytes. If the target limit is 1G, the application can set `("grpc.max_receive_message_length", 1024*1024*1024)` as one of the channel argument.