Reputation: 41
I am using Ubuntu 16.04.5 LTS local machine to create and publish Python Function App to Azure using CLI and Azure Functions Core Tools (Ref). I have configured Blob Trigger and my function.json file looks like this:
{
"disabled": false,
"scriptFile": "__init__.py",
"bindings": [
{
"name": "<Blob Trigger Name>",
"type": "blobTrigger",
"direction": "in",
"path": "<Blob Container Name>/{name}",
"connection": "<Connection String having storage account and key>"
},
{
"name": "outputblob",
"type": "blob",
"path": "<Blob Container Name>",
"connection": "<Connection String having storage account and key>",
"direction": "out"
}
]
}
My init.py function looks like this.
def main(<Blob Trigger Name>: func.InputStream, doc: func.Out[func.Document]):
logging.info(f"Python blob trigger function processed blob \n"
f"Name: {<Blob Trigger Name>.name}\n"
f"Blob Size: {<Blob Trigger Name>.length} bytes")
logging.basicConfig(filename='example.log',level=logging.DEBUG)
logging.debug('This message should go to the log file')
logging.info('So should this')
logging.warning('And this, too')
# Write text to the file.
file = open("QuickStart.txt", 'w')
file.write("Hello, World!")
file.close()
# Create the BlockBlockService that is used to call the Blob service for the storage account
block_blob_service = BlockBlobService(account_name='<Storage Account Name>', account_key='<Storage Account Key>')
container_name='<Blob Container Name>'
# Set the permission so the blobs are public.
block_blob_service.set_container_acl(container_name, public_access=PublicAccess.Container)
# Upload the created file, use local_file_name for the blob name
block_blob_service.create_blob_from_path(container_name, 'QuickStart.txt', '')
The Function App is "Always On" but when I upload a blob in the storage the function is not getting triggered. Another Reference Link is this (Ref).
What's going wrong?
Thanks and regards, Shashank
Upvotes: 4
Views: 3003
Reputation: 414
In your main def of py script you have 2nd argument of doc: func.Out[func.Document], which is for cosmos db. This should be an output stream, as its of type blob
Upvotes: 0
Reputation: 241
Have you checked that the local.settings.json
(connection strings for storage accounts) are also in the function app in Azure? They are not published from local machine by default.
You can configure them manually in the portal or use the publish-local-settings flag:
func azure functionapp publish "functionname" --publish-local-settings
Upvotes: 3
Reputation: 5294
I tried to reproduce this issue by creating a sample function app in python using Visual studio code with default template and finally deployed in Linux. It worked for me.
Here is the piece of code i have written in pyhton file.
import logging
import azure.functions as func
def main(myblob: func.InputStream):
logging.info(f"Python blob trigger function processed blob \n"
f"Name: {myblob.name}\n"
f"Blob Size: {myblob.length} bytes")
and here is the function.json file from my function app.
{
"scriptFile": "__init__.py",
"bindings": [
{
"name": "myblob",
"type": "blobTrigger",
"direction": "in",
"path": "samples-workitems/{name}",
"connection": ""
}
]
}
I am using 2.0 Azure function , python 3.6 and Azure Functions Core Tools version 2.2.70
this is the reference link i used :
https://learn.microsoft.com/en-us/azure/azure-functions/functions-create-first-function-python
Please try to use this and see if it helps.
Upvotes: 1