Azure Function App not showing function after refactoring Python code into multiple files

@Muhammad Adnan Arshad
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I understand that Azure Function App is not showing function after refactoring Python code into multiple files.

In Python V2 programming model, Azure Functions are discovered in the function_app.py file. If your refactored logic is in other files but the decorated function is no longer registered in function_app.py, Azure won’t detect it.

Ensure function_app.py includes like below, this ensures the function is registered and discoverable by the runtime

import azure.functions as func

from azure.functions import FunctionApp

from my_module import my_handler # your refactored logic

app = FunctionApp()

@app.function_name(name="HttpTrigger1")

@app.route(route="hello")

def main(req: func.HttpRequest) -> func.HttpResponse:

**return my_handler(req)**

If any of the imported modules have syntax errors or missing dependencies, it will fail to load the function.

Wrap imports in try-except blocks and log errors:

try using,

from letter_process import handle_request

except Exception as e:

import logging

logging.error(f"Import failed: {e}")

If you’ve organized code into folders, make each folder has an init.py file even if it is empty. Azure only scans function_app.py for decorated functions. If you moved all logic out and left no decorated function behind, nothing will be registered. If your deployment includes misconfigured files, it might affect the runtime.

Clean up unused files and make sure only one function_app.py exists with valid decorators.

Below are useful for debugging,

Run this in local, func start

To stream logs, use this command in CLI

az functionapp log tail --name <your-app-name> --resource-group <your-resource-group>

I hope this helps in resolving the issue, do let me know if you have any further questions on this

@Muhammad Adnan Arshad Just checking to see if you have a chance to check my previous response and helped, do let me know if you have any further questions on this. 

@Muhammad Adnan Arshad Following up to see if you have a chance to check my previous response and helped, do let me know if you have any further questions on this. 

I've followed the steps, but unfortunately, it didn't work. All the Python files are located in the root directory. I also noticed that when I had only two Python files, everything worked fine. However, after refactoring the code and adding 7-8 more files, the issue started to occur. The first two files upload correctly, but they do not appear when there are multiple files. When there are only two or three files, they display correctly. Additionally, I’m trying to display the Azure Function in the Azure Function App via the Azure portal.