How do I create custom proto types in the NodeJS implementation?

[luc...@getsirena.com]

Hi! I'm trying to add support for 2 types that I need: 

- BSON.ObjectId (for MongoDB IDs)

- Unknown object structure

For the first one, I was thinking on just a type that serializes/deserializes the BSON.ObjectId to a string, it it may be sent as a string.

For the second one, as I need to pass objects where I don't know how they're gonna be, I was thinking on serializing them to a JSON string, and then deserialize it in the other side. 

Is any of this possible? 

If so, how do I start? 

Thanks!
Luciano

[Ken Payson]

If you can serialize these object types to strings, and need to pack them into a protobuf message, you can put them in the protobuf as serialized strings.

[Michael Lumish]

You also don't have to use proto at all. All you need is serializers and deserializers to and from the Buffer type. Then you just need to create a map of method names to method definition objects (https://grpc.io/grpc/node/grpc.html#~MethodDefinition), and pass that to grpc.makeGenericClientConstructor or server.addService, depending on whether you need to use it on the client or server.

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