Proto spec is to serialize int64 to String

[gorzell]

The protocol buffer JSON spec seems to serialize int64 values to JSON strings, rather than numbers. It seems that serde/prost expect a number though, so if your proto includes an int64 the de-serialization will fail.

Error("invalid type: string \"5000\", expected i64", line: 1, column: 200)'

I am not familiar enough with serde/prost to know where the problem lies, but maybe you have some ideas?

I may be running into more of these edge cases be cause the JSON is being serialized by Go code and then I am trying to deserialize in Rust.

[gorzell]

Interestingly, depending on which Go serializer you use this isn't consistent 😞.

[fdeantoni]

Interesting! Do you have a sample proto message with a code snippet that recreates this behaviour? Better yet if it could be a test case we can add to the test suite....