Azure Function Blob Storage Trigger is not triggering

Question

I tested the blob storage trigger in my local in vs code. I'm using python and it is working but when I pushed the code to Azure and tried to store the file but nothing showing in the log. I waited for like 15-30 mins and still nothing. How do I know it is running or not? Please help!

Answer 1

As Bowman said, maybe the problem is the storage connections in local.settings.json, you should navigate to configuration under settings to check the app settings with a storage connection string value like the picture below.

And if you want to see the details in logs, you can go to KUDU unless you use Consumption plan , because Advanced Tools (Kudu) is currently not supported for Linux Consumption plans.

Another way is adding an output binding , like creating a new blob after triggering. If your function run successfully, there should be a new blob in your container. If the new blob is not created, you can check your code or anything wrong else.

import logging
import azure.functions as func


def main(queuemsg: func.QueueMessage, inputblob: func.InputStream,
         outputblob: func.Out[func.InputStream]):
    logging.info('Python Queue trigger function processed %s', inputblob.name)
    outputblob.set(inputblob)

Refer to the docs to add output binding if you need: https://learn.microsoft.com/en-us/azure/azure-functions/functions-bindings-storage-blob-output?tabs=python