Reflection support update?

[Christian Svensson]

Hi,

Congrats yet again at reaching 1.0!

Once upon a time reflection support was aimed to be part of 1.0, and as far as I can tell it isn't. That's fine, but there as been very few updates on this.

Could we have an update on how that's progressing?

To elaborate: what I'm asking about is to be able to explore and call gRPC methods without knowing anything about the server

Thanks,

[Christian Svensson]

Ping!

[Mark D. Roth]

Yuchen, can you provide status on server reflection?

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Mark D. Roth <ro...@google.com>
Software Engineer
Google, Inc.

[Yuchen Zeng]

Hi Christian,

The alpha version of server reflection has been provided in C++ and Go. Its interface is defined in reflection.proto. To enable reflection in a C++ server,  we need to link the reflection library to the binary like this. We also provide a descriptor database that could be used in client side to fetch server protos.

Server reflection in other languages may come later. A server reflection example in C++ will be added shortly.

Thanks,

-Yuchen

[Christian Svensson]

Thank you Yuchen -- looking forward to it!

Are there any plans of adding reflection support to the gRPC client? It would be a great thing to have a "stubby"-like tool that people could just download or apt-get to start calling services.

[Yuchen Zeng]

gRPC CLI already supports reflection. Instructions on how to build and use it can be found at github.com/grpc/grpc/blob/master/doc/command_line_tool.md

Currently it only has 'call' command and supports unary calls. More commands and streaming call support will come soon.

Thanks,

-Yuchen