curlでgrpc叩く(あらかじめ grpc-json-proxyを起動する必要あり)
$ curl -X POST \
-H 'Content-Type: application/grpc+json' \
-H "Grpc-Insecure:true" \
-x http://localhost:7001 \
-d '{"name":"hogehoge"}' \
http://127.0.0.1:50051/helloworld.Greeter/SayHello
grpcurlで叩く
$ grpcurl -rpc-header "hoge: ufag" \
-plaintext -d {} localhost:50051 helloworld.Greeter/SayHello
grpc-dump
$ grpc-dump -port 12345 -destination 127.0.0.1:50051 | jq .service