node-stream | RTMP server in Nodejs for live streaming | Stream Processing library

A major advantage of using Async/Await is that you can avoid deeply nested, difficult to read code - such as yours. It makes much more sense to break this code into functional units. Rather than thinking about all this code as "must be together", think "works better when apart".

So the entry point can call axios, use .then() to fire off the data file download, use .then() to fire off unzipping, use then() to fire off stream writing function.

You have created a dilemma by using the callback version of StreamZip. It would simplify things a lot if you used the Promise version the API.

Something like the following is easier to rationalize about the order of operation.