I am using the Authentication feature now. As I know, there are two ways to use the token to send the request. One is to add metadata pair {key, token} to the context which is sent with the request. This way doesn't need ssl.
The other way is to make one call_creds by using the token, then use one compisited_creds to combine call_creds with one channel_creds, to create this channel_creds, is the grpc::SslCredentials(ssl_options) required? Is there a way to make it work without SslCredentials?
I tried to use grpc::InsecureChannelCredentials(), but doesn't work.
Any help with being greatly appreciated!