Hi, I am trying to make a gRPC call based on a HTTP2 client to work like it is described here: *https://github.com/grpc/grpc/blob/master/doc/PROTOCOL-HTTP2.md <https://github.com/grpc/grpc/blob/master/doc/PROTOCOL-HTTP2.md>*
I am using an official example of a gRPC server: *https://grpc.io/docs/languages/python/quickstart/ <https://grpc.io/docs/languages/python/quickstart/>* Based on *grpcurl*: *% grpcurl -import-path ../../protos -proto helloworld.proto -plaintext -d '{"name": "niko"}' -H 'Content-Type: application/grpc+json' localhost:50051 helloworld.Greeter/SayHello*{ "message": "Hello, niko!" } Based on *nghttp*: # json_data = '{"name": "niko"}' # compressed_flag = 00 # message_length = 00000010 # message_binary = 7b226e616d65223a20226e696b6f227d echo -n '00000000107b226e616d65223a20226e696b6f227d' | xxd -r -p - frame.bin *% nghttp -H ":method: POST" -H "Content-Type: application/grpc+json" -H "TE: trailers" --data=frame.bin http://localhost:50051/helloworld.Greeter/SayHello --verbose* [ 0.004] Connected [ 0.004] recv SETTINGS frame <length=24, flags=0x00, stream_id=0> (niv=4) [SETTINGS_INITIAL_WINDOW_SIZE(0x04):4194304] [SETTINGS_MAX_FRAME_SIZE(0x05):4194304] [SETTINGS_MAX_HEADER_LIST_SIZE(0x06):8192] [UNKNOWN(0xfe03):1] [ 0.004] recv WINDOW_UPDATE frame <length=4, flags=0x00, stream_id=0> (window_size_increment=4128769) [ 0.004] send SETTINGS frame <length=12, flags=0x00, stream_id=0> (niv=2) [SETTINGS_MAX_CONCURRENT_STREAMS(0x03):100] [SETTINGS_INITIAL_WINDOW_SIZE(0x04):65535] [ 0.004] send SETTINGS frame <length=0, flags=0x01, stream_id=0> ; ACK (niv=0) [ 0.004] send PRIORITY frame <length=5, flags=0x00, stream_id=3> (dep_stream_id=0, weight=201, exclusive=0) [ 0.004] send PRIORITY frame <length=5, flags=0x00, stream_id=5> (dep_stream_id=0, weight=101, exclusive=0) [ 0.004] send PRIORITY frame <length=5, flags=0x00, stream_id=7> (dep_stream_id=0, weight=1, exclusive=0) [ 0.004] send PRIORITY frame <length=5, flags=0x00, stream_id=9> (dep_stream_id=7, weight=1, exclusive=0) [ 0.004] send PRIORITY frame <length=5, flags=0x00, stream_id=11> (dep_stream_id=3, weight=1, exclusive=0) [ 0.004] send HEADERS frame <length=95, flags=0x24, stream_id=13> ; END_HEADERS | PRIORITY (padlen=0, dep_stream_id=11, weight=16, exclusive=0) ; Open new stream :method: POST :path: /helloworld.Greeter/SayHello :scheme: http :authority: localhost:50051 accept: */* accept-encoding: gzip, deflate user-agent: nghttp2/1.52.0 content-length: 21 content-type: application/grpc+json te: trailers [ 0.004] send DATA frame <length=21, flags=0x01, stream_id=13> ; END_STREAM [ 0.005] recv SETTINGS frame <length=0, flags=0x01, stream_id=0> ; ACK (niv=0) [ 0.005] recv WINDOW_UPDATE frame <length=4, flags=0x00, stream_id=0> (window_size_increment=21) [ 0.005] recv PING frame <length=8, flags=0x00, stream_id=0> (opaque_data=0000000000000000) [ 0.005] send PING frame <length=8, flags=0x01, stream_id=0> ; ACK (opaque_data=0000000000000000) [ 0.006] recv (stream_id=13) :status: 200 [ 0.006] recv (stream_id=13) content-type: application/grpc [ 0.006] recv (stream_id=13) grpc-status: 13 [ 0.006] recv (stream_id=13) grpc-message: Exception deserializing request! [ 0.006] recv HEADERS frame <length=95, flags=0x05, stream_id=13> ; END_STREAM | END_HEADERS (padlen=0) ; First response header [ 0.006] send GOAWAY frame <length=8, flags=0x00, stream_id=0> (last_stream_id=0, error_code=NO_ERROR(0x00), opaque_data(0)=[]) The *server* complains in the same way: *% python3 greeter_server.py* Server started, listening on 50051 ERROR:grpc._common:Exception deserializing message! Traceback (most recent call last): File "/Library/Python/3.9/site-packages/grpc/_common.py", line 90, in _transform return transformer(message) google.protobuf.message.DecodeError: Error parsing message Would you be so kind to help me out and advise what I am doing wrong? -- You received this message because you are subscribed to the Google Groups "grpc.io" group. To unsubscribe from this group and stop receiving emails from it, send an email to grpc-io+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/grpc-io/de08caec-4594-4173-bc74-d84aaaeb9038n%40googlegroups.com.
