Client-side unary-call metadata support.

tikv / grpc-rs

The gRPC library for Rust built on C Core library and futures

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Client-side unary-call metadata support. #532

Closed christian-oudard closed 3 years ago

christian-oudard commented 3 years ago

Add methods to BatchContext to get metadata.
Modify BatchFuture to read/return those as well.
Update existing code paths to discard metadata read by BatchFuture.
Create a new FullClientUnaryReceiver structure to explicitly pass it along.
Add async/sync accessors to those details.
Add unary metadata to client codegen.

This was written by my colleague James Cape last year; we are just now getting around to sending a pull request.

BusyJay commented 3 years ago

Interesting. Sending metadata is supported already using CallOption. For receiving I need some time to think about the interface design. Will get back soon.

BusyJay commented 3 years ago

Let's talk about it in #460.

christian-oudard commented 3 years ago

Reimplementing with new API in https://github.com/tikv/grpc-rs/pull/543