in src/Message.cc [99:107]
Napi::Value Message::GetData(const Napi::CallbackInfo &info) {
Napi::Env env = info.Env();
if (!ValidateCMessage(env)) {
return env.Null();
}
void *data = const_cast<void *>(pulsar_message_get_data(this->cMessage.get()));
size_t size = (size_t)pulsar_message_get_length(this->cMessage.get());
return Napi::Buffer<char>::Copy(env, (char *)data, size);
}