gRPC JSON mutation format encoding issues

I am currently trying to push data from a ruby client via gRPC.

Unfortunately, I am having encoding issues. When I try to send characters like “ö” it fails with the conversion from UTF-8 to ASCII-8BIT. Any idea how to solve that? Or is it an implementation error on the ruby grpc library?

Edited: From what I have seen it is related to ProtoBuffers. Whenever I want to set a UTF-8 string with some non-trivial characterts, it fails. I guess I have to fallback to HTTP for now.

Ok, my bad… in ruby you are supposed to call .b on a string to return a copied string whose encoding is ASCII-8BIT.

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