如何将授权标头添加到grpc ruby​​客户端存根？

Question

我需要向ruby grcp存根添加授权标头。存根定义如下：

stub = Sample::Stub.new(config.grpc_host, :this_channel_is_insecure)

Answer 1

可以使用“ grpc.default_authority”“ channel arg”在通道或级别上设置权限标头。参见https://github.com/grpc/grpc/blob/master/include/grpc/impl/codegen/grpc_types.h#L233

例如，您可以使用以下代码段调整“ greeter client”（https://github.com/grpc/grpc/blob/master/examples/ruby/greeter_client.rb）的自定义权限：

def main
  stub = Helloworld::Greeter::Stub.new('localhost:50051', :this_channel_is_insecure, channel_args: {'grpc.default_authority': 'my-authority'})
  user = ARGV.size > 0 ?  ARGV[0] : 'world'
  message = stub.say_hello(Helloworld::HelloRequest.new(name: user), metadata: {}).message
  p "Greeting: #{message}"
end