Metadata is not optional
Currently, sending metadata is optional. But if a call is affected by metadata, this metadata MUST be sent, and if it is missing the server MUST respond with the InvalidMetadata framework error.
Edited by Niklas Mertsch
Currently, sending metadata is optional. But if a call is affected by metadata, this metadata MUST be sent, and if it is missing the server MUST respond with the InvalidMetadata framework error.