Azure SDK Python

Question

Azure SDK Python

Domagoj Bazina 201

Hello,
I'm trying to create Azure Function App using Azure Python SDK.
But I can't find example for that in documentation (https://learn.microsoft.com/en-us/azure/developer/python/sdk/examples/azure-sdk-example-resource-group).

Is it even possible to do that, or just example is missing.

Thanks :)

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Answer 1

Bruno Lucas 4,436 MVP

Hi @Domagoj Bazina

Do you want to write a Azure Function using Python SDK or create an Function App (the azure function host) using Python SDK?
To create an Function App using Python you could use this API: https://learn.microsoft.com/en-us/rest/api/appservice/web-apps/create-function same way you invoke any API. If there is an sdk approach it could be probably using this API underneath

This is not exact for the create function but same base:
https://lnx.azurewebsites.net/azure-resource-manager-api-calls-from-python/

I suspect there is no option for function app under the sdk. There is "web app": https://learn.microsoft.com/en-us/azure/developer/python/sdk/examples/azure-sdk-example-web-app?tabs=cmd

I would have to be under this namespace:

I may be missing but I can find anything for Function apps: https://azure.github.io/azure-sdk/releases/latest/mgmt/python.html

Domagoj Bazina 201 Reputation points

2022-06-02T12:10:52.867+00:00

I would like to do both, to create resource Function App, and to host python functions inside it.
Python SDK offers straight-forward examples how to create and deploy other resources, but not Function Apps & functions itself.

I know there is an option to create Azure Function App & function using CLI.
Maybe, there is a way to achieve this avoiding the API mentioned before. There is an option to create and deploy Azure Function App & python functions using Portal or VS Code. That python function would invoke "shell commands" to create other functions or even new Function App & functions. Potential issues with this approach include authentication credentials (solvable using Role Management & Identity ?) and Azure CLI library.

What do You think about this approach?
Domagoj Bazina 201 Reputation points

2022-06-02T12:24:25.057+00:00

Also, as you have mentioned;

"If there is an SDK approach it could be probably using this API underneath"

There is definitely option to create Azure Function Apps & Functions using CLI.

How does the CLI communicate with the Azure? I'm guessing that it is using that same API, or something similar?
If it really uses the same API, there has to be command, function, or something like that.
Bruno Lucas 4,436 Reputation points MVP

2022-06-03T00:58:48.703+00:00

Do you need to Create the Function app and deploy after some event? Just asking to eliminate the possibility of Devops. I use Terraform to create the Function App. I never tried to do it programmatically (like spin an entire az function after an even), but would have to check. But authentication is always a concern. I think that API requires you to get an oauth first, so, they all will have some challenge on the authentication side. will see if I can find the source for the vs code add on. it may have some clues
Domagoj Bazina 201 Reputation points

2022-06-03T08:36:06.26+00:00
Yep, I would like to create the Function App and deploy it after some event. For example, let's say that we have an Iot Hub, Event Grid Trigger & Azure Function App (Event Grid Trigger template). Flow through the setup would look like this:

New device registers to the IoT Hub

Hub trigger the Device Created Event

Azure function with Event Grid trigger, catches the event & creates new Function App and deploys it to the Azure.

Python SDK is ideal for that role, as it can be imported in python script as library, but it doesn't include method to create & deploy Azure function...

I saw there is an option to authenticate using OAuth (There is an REST API example in Documentation using Postman).

Answer 2

rbrundritt 20,836 Microsoft Employee Moderator

Try this documentation, its a python guide for Azure functions: https://learn.microsoft.com/en-us/azure/azure-functions/functions-reference-python?tabs=asgi%2Cazurecli-linux%2Capplication-level

Here is a getting started for Azure functions in Python: https://learn.microsoft.com/en-us/azure/azure-functions/create-first-function-vs-code-python

Domagoj Bazina 201 Reputation points

2022-06-02T07:12:50.797+00:00

Sorry, but Your answer didn't help me. As I've asked above, I m looking for python script that creates Azure function, not bash CLI or VS Code.
In the link above, you can see examples of python scripts to create Web Apps, Storage Accounts, etc...

Answer 3

Domagoj Bazina 201

Hello,
@Bruno Lucas , I've realized that something you have mentioned above is exactly what I need.

To create an Function App using Python you could use this API: https://learn.microsoft.com/en-us/rest/api/appservice/web-apps/create-function

This API call should create a function to the existing Function App, but the problem is that it is not documented properly. There are a bunch of body parameters to be sent, but I can't find to what those parameters are related to. Also, I've tried to search for example, or something like that, but nothing I can find...

Besides, this API call makes me wonder how to choose which type of Trigger to use, how to send source code of the script, etc...

Thanks in advance for any provided info !

Bruno Lucas 4,436 Reputation points MVP

2022-06-08T10:17:42.71+00:00

Hi @Domagoj Bazina ,

Yes, would be good if the msdn would have a code snippet to help. I'll see if I can find time to try and document the "https://learn.microsoft.com/en-us/rest/api/appservice/web-apps/create-function"

I used the other operations like "https://learn.microsoft.com/en-us/rest/api/appservice/web-apps/update-configuration" ,
but never tried to create a function + deploy. look like the deploy will be executed by another api like "https://learn.microsoft.com/en-us/rest/api/appservice/get-source-control/get-source-control"

You may want to post a new thread specific to create and deploy a function using the Azure REST API.
Bruno Lucas 4,436 Reputation points MVP

2022-06-10T06:53:54.05+00:00

Hi @Domagoj Bazina ,
I see you posted the question.
Couple suggestions:
1 - You may use the word "programmatically" to make sure people don't rush to post how to create a function app using azure portal . if you ask "how to create an Function app and deploy code to it programmatically", they will know you want to use code to action that.

second suggestion, if you have azure devops or can get azure devops, is to use the pipeline api:
https://learn.microsoft.com/en-us/rest/api/azure/devops/pipelines/runs/run-pipeline?view=azure-devops-rest-6.0

That would enable you to create an app service and deploy code to it

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