Document how to convert objects between proto and pydantic and reverse

[jankatins]

Is your feature request related to a problem? Please describe.

I tried to find if there is an easy way to convert objects form one format into another. The easiest I found is using dicts as a intermediate format.

Describe the solution you'd like

• Something documented in the readme showcasing the conversion in both directions
• Maybe: a nice <PydanticType>.from_proto(msg: <ProtoType>) -> <PydanticType> class method and <PydanticType>.to_proto() -> <ProtoType> method.

Describe alternatives you've considered

The dict method: convert proto/pydantic to dict, use that dict with two stars as input.

[so1n]

@jankatins Are you talking about something similar to this Issue? #11

[ShaneMurphy2]

@so1n Not the OP, but that is similar in use IMO. I feel that not having clear example of how to go to either the equivalent PB2 type or directly to protbuf wire format makes the usability of this library difficult. What am I supposed to do with my nice pydantic models if I can't interact with the outside world of other languages using the same .proto definition?

[so1n]

@so1n Not the OP, but that is similar in use IMO. I feel that not having clear example of how to go to either the equivalent PB2 type or directly to protbuf wire format makes the usability of this library difficult. What am I supposed to do with my nice pydantic models if I can't interact with the outside world of other languages using the same .proto definition?

Can you provide some usage examples? @ShaneMurphy2

[ShaneMurphy2]

I can't provide our specific use case, but it's basically just the de-facto use case of Protocol Buffers themselves. We want to send messages from a client in Python to a server in another language, and want to use the Protobuf Wire Format as the interchange format.

[so1n]

Do you need pgv?

[ShaneMurphy2]

Do you need pgv?

Nope