My thoughts
While dwelling in my thoughts, a memory came to my mind. In my college time, I was presented with a challenge to make a recursive Fibonacci algorithm in LISP without using Loops.
This was a challenge, because as you may know…
(These are probably my favorite programming comics).
📝 One-Minute Brief
Azure Logic Apps don’t support recursive calls by default, but you can still implement recursion with a simple workaround. This article shows how to build recursive Logic Apps by calling the workflow through an HTTP action, enabling loop‑like behavior for advanced integration scenarios.
The Idea
But this gave me the idea of testing this concept in Logic Apps.
I’ve built a fairly simple LA just to test, and with minimal inputs.
Before I could add the recursive connection to the Logic App, I had to deploy it first, because you can only call an LA or a Function if it’s already provisioned.
So, I’ve added the action after deployment, saved, and tried to deploy again, and this came up:
This means that Logic Apps, by default, do not support recursive calls.
The workaround implementation
But I’m stubborn, and I don’t give up easily. So, what would be the best way to call an LA, knowing that I’d have to treat it like an external API?…
The answer is super simple. HTTP action!
We already have the URL, because we deployed it before, so there’s nothing stopping us from doing this.
No objections this time, so let’s test!
TA-DAAA! How easy was that? In my case, I’ve used a simple counter to add and loop, but you can use any other condition to recursively loop through your logic, for example, until a SQL record is updated.
You can add delays to ensure that you won’t be making calls every second, or delay until a specific time. The possibilities are endless.
Happy coding!
Hope you find this helpful! If you liked the content or found it useful and would like to support me in writing more, consider buying (or helping to buy) a Star Wars Lego set for my son.
If you need to automate deployment for that, I managed to combine ARM & Powershell approach in Azure DevOps Pipelines, blog post here: https://bilot.group/articles/updating-azure-logic-app-parameters-with-powershell/