How to send a .google.protobuf.BytesValue via grpcurl?

Question

i am planning to call following message using grpcurl. How to send a .google.protobuf.BytesValue via grpcurl?

message TestRequest {
  .google.protobuf.BytesValue TestJson = 1;
  string Temp = 2;
}

Answer 1

BytesValues is a message (wrapper) for bytes.

Try Base64 encoding the bytes field and passing it that way.

Protobuf's JSON encoding of bytes is a Base64 string.