what do you mean?
you can't processData before you got the data, so it has to be done in series
getData() has to return a promise, the rest of the functions would automatically be converted to async
So why in your firstHandler example did you made the function to be async?
If you use it elsewhere, and it is async, mark it as async.
only when I use anonymous function directly in the chain I won't mark methods with async unless I have to.
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