Functions

Call that created function inside the new function. and call this new function inside the first function with that payload.

I mean, argument

elaborate a bit more please

have an internal relationship inside those two functions without depending upon ui

write your first function, and write your second function

after completing writing, it's time to test.

So, you can access your second function from first function through Function SDK right? check it: https://appwrite.io/docs/server/functions?sdk=nodejs-default#functionsCreateExecution

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And execute the second function inside first function by sending the data / arguments which you are want that second posses to complete it's task.

and send response to the client from the second function after yo u have implemented your business logic.