Is the Json No Code connector OAuth 1.0 or OAuth 2.)
The knowledge base article does not specify.
While I can only assume, unfortunately, I would tell you to program it as OAuth 2. The connectors that we've created through Domo have all been built using OAuth 2 and have worked beautifully. So instead of building it with OAuth 1 and having to change it down the road if it doesn't work (or if 1 is fully deprecated), just build it with OAuth 2!