buildgrid.server.decorators.metadata module

buildgrid.server.decorators.metadata.metadatacontext(f: Func) → Func

Helper function to obtain metadata and set request metadata ContextVar, and then reset it on completion of method.

Note

args[2] of the method must be of type grpc.ServicerContext

This returns a decorator that extracts the invocation_metadata from the context argument and sets the ContextVar variable with it. Resetting the ContextVar variable after the method has completed.