typescript_tcp_protobuf/protobuf_test.ts

/*
   Uint8Array (web browser) / Buffer (node)
 */
import _, {Root} from "protobufjs";
const {load} = _;

load('proto/messages.proto')
    .then((root) => {
        const PersonMessage = (root as Root).lookupType('Messages.Person');
        const payload = { name: 'Jack', age: 18 };
        let errMsg = PersonMessage.verify(payload);
        if (errMsg)
            throw  Error(errMsg);
        const message = PersonMessage.create(payload);
        const buffer = PersonMessage.encode(message).finish();

        console.log(buffer);
    });