A gRPC Python client interceptor is passed an instance of a class
that implements the ClientCallDetails interface. The interceptor
can choose to create its own object that implements the interface,
and pass it back to the continuation invoked by the interceptor.
To make it easy to add additional attributes to call details,
without breaking user code that hardcode the attributes required
by the interface, instead of interospecting the object passed
to the interceptor at runtime, and to ease authorship of
interceptors that want to keep some attributes intact and not
care about them, we relax the requirements on the object that
is expected to get passed by the interceptor and let the user
omit some attributes. Omitted attributes will be replaced
by the original value of the attribute given to the interceptor.
grpc.ServicerContext.abort is documented to always raise an exception
to terminate the RPC. The code argument "must not be StatusCode.OK."
However, if you do pass StatusCode.OK, the RPC terminates successfully
on the client side, but returns None.
_server.py: If the user accidentally passes StatusCode.OK, treat it as
StatusCode.UNKNOWN. This is what happens if the user accidentally
passes something that is not a StatusCode instance. Additionally
set details to ''.
_metadata_code_details_test.py: update test to verify the behavior of
abort with invalid codes.
Alexander Polcyn
Ruslan Nigmatullin
ncteisen
David Garcia Quintas
kpayson64
Yihua Zhang
Sree Kuchibhotla
Jan Tattermusch
Mark D. Roth
Mehrdad Afshari
Vijay Pai
Muxi Yan
Matt Kwong
Nathaniel Manista
Evan Jones
murgatroid99