Connect to an API that using API gateway

We are using multiple grpc service also we have a API gateway that redirect base on Url. But we can't use URL on grpcui host .
sample: example.com/serviceaA
example.com/serviceB

The issue names no files, tests, or entry points. First clarify how grpcui should connect to multiple gRPC services routed by URL through an API gateway, including the expected host and path behavior; done should mean both example service paths can be reached and used through grpcui.

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