Andrew Wilson's Blog

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Logic App | Try-Catch Pattern, Nested Scopes, And Compensating Transaction Pattern

The Try-Catch Pattern Following the idea of defensive programming or as I like to call it for Logic Apps (being low code): defensive processing, it is considered good practice to wrap your workflows in a try-catch pattern to handle the unexpected. The pattern makes use of a mixture of Run After conditions and the Scope block. Run After Conditions | used to define the execution order based on the state of the previous action or scope Scope Block | provides the ability to group a series of actions.

Posted by Andrew Wilson on Wednesday, January 8, 2025

Key Vault Reference | Logic and Function Apps using User-Assigned Managed Identity

Overview Prior to the Christmas break I was involved in writing some integrations that used a mixture of Logic Apps Standard and Function Apps. It was agreed as part of the architecture that user-assigned identities would be the best fit. As part of the implementation, I observed that the differences in configuration setup between system-assigned and user-assigned wasn’t widely understood. This article aims to show a brief run through of both.

Posted by Andrew Wilson on Monday, January 6, 2025

Easy Auth | Standard Logic App with Azure API Management

Overview The recent work that I have been doing with Standard Logic Apps and linking them as backends to Azure API Management has relied on the use of the Logic App Workflow SAS key for security. This is a valid authentication approach, but there are risks that you need to be aware of as well as best practices that you need to be abiding by. Such as: Some Potential Risks:

Posted by Andrew Wilson on Tuesday, November 26, 2024

Easy Auth | Function App with Azure API Management

Overview The recent work that I have been doing with Function Apps and linking them as backends to Azure API Management has relied on the use of the Function Apps Function SAS key for security. This is a valid authentication approach, but there are risks that you need to be aware of as well as best practices that you need to be abiding by. Such as: Some Potential Risks:

Posted by Andrew Wilson on Thursday, November 14, 2024

Azure API Management | Function App Backend

Overview Following on from a previous set of posts from earlier this year where I detailed how to securely implement Logic App Standard backends in Azure API Management, there has been questions on how this would be achieved in a similar manner with Azure Function Apps. To read-up on how this was achieved with Standard Logic Apps have a look at the following: Azure API Management | Logic App (Standard) Backend Azure API Management | Logic App (Standard) Backend Using a Swagger Definition Easy Auth | Standard Logic App with Azure API Management At a high level comparison with Azure Logic Apps, Azure Functions are a developer-centric serverless compute offering allowing authors to write code in languages such as C#, Java, Javascript, Python, and PowerShell.

Posted by Andrew Wilson on Tuesday, October 1, 2024