I don't think so, unfortunately -- you'll have to make the initial call to get the topic, and then subsequent calls to grab the raw markdown. I don't think we'll be adding a way to retrieve the raw markdown at the topic level because we wouldn't have any use for it.
I work in an environment where there are two nodeBB instances : integration and production.
Integration is where I've tested all features, graphic design, etc.
My commmunity is now ready to go into production. I would like to dump all the configuration I've fine tuned in the config platform without the content, i.e. users and posts (which are all dummy, made for testing purpose).
I've searched the nodeBB forum, and I've only found ways to dump the entire database (config AND content).
This will also help me in the future: I would like to keep my integration platform to test new configurations and push them to the production once tested.