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I have an existing system, which is using protobuf-based communication protocol between GUI and server. Now I would like to add some persistence, but at the moment protobuf messages are straight converted to a third-party custom objects.
Is there a way to convert proto messages to json, which could be then persisted to database.
N.B.: I don't much like an idea of writing binary protobuf to database, because it can one day become not backward-compatible with newer versions and break the system that way.
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A Printer converts protobuf message to JSON format. A TypeRegistry is used to resolve Any messages in the JSON conversion.
JSON is limited to certain python objects, and it cannot serialize every python object. Protobuf supports a wider range of data types when compared to JSON. For example, enumerations and methods are supported by Protobuf and not supported by JSON. JSON supports only a subset of python data types.
JSON is usually easier to debug (the serialized format is human-readable) and easier to work with (no need to define message types, compile them, install additional libraries, etc.). Protobuf, on the other hand, usually compresses data better and has built-in protocol documentation via the schema.
Protobuf messages were 9% smaller than JSON messages and they took only 4% less time to be available to the JavaScript code.
We are currently using protobuf-java-format to convert our Protobuf messages (anything subclass of Message) into a JSON format to send over our web API.
Simply do:
JsonFormat.printToString(protoMessage) If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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