How can I create a file in my azure function?

Question

I am using azure Function and I need my function create a file when I call it but when i call it, it returns the next error: "Failure Exception: OSError: [Errno 30] Read-only file system: 'audio.wav' ". I would like to know how to resolve it.

this is the code for better explanation:

Answer 1

Hi @Jose Joab Romero Humba

Welcome to Microsoft Q&A! Thanks for posting the question.

Python functions are supported on the Linux OS in azure. The current directory is indeed read-only and if you want to create the temporary file then you need to create it in the temporary folder.

import logging  
import azure.functions as func  
import tempfile  
from os import listdir  
  
#---  
   tempFilePath = tempfile.gettempdir()  
   fp = tempfile.NamedTemporaryFile()  
   fp.write(b'Hello world!')  
   filesDirListInTemp = listdir(tempFilePath)