make sure to always receive initial metadata in ruby (grpc#29155)

xiaoluobo5 · Mar 19, 2022 · fe13456 · fe13456
1 parent 364de4a
commit fe13456
Showing 1 changed file with 7 additions and 1 deletion.
diff --git a/src/ruby/lib/grpc/generic/active_call.rb b/src/ruby/lib/grpc/generic/active_call.rb
@@ -164,7 +164,13 @@ def interceptable
     end
 
     def receive_and_check_status
-      batch_result = @call.run_batch(RECV_STATUS_ON_CLIENT => nil)
+      ops = { RECV_STATUS_ON_CLIENT => nil }
+      ops[RECV_INITIAL_METADATA] = nil unless @metadata_received
+      batch_result = @call.run_batch(ops)
+      unless @metadata_received
+        @call.metadata = batch_result.metadata
+        @metadata_received = true
+      end
       set_input_stream_done
       attach_status_results_and_complete_call(batch_result)
     end