Best example or easy use case to understand Azure Logic Apps

Simple way to understand Azure Logic Apps

Here’s an example:

A logic app gets triggered by a new blob that is written in Azure Blob storage. It takes the Blob input, which is an image file, and resizes the image by calling an Azure function that does just that. Next, it takes the resized image and writes it to another storage account. And finally, it calls the Office 365 API to send an email to the administrator that there is a new, resized image available.

Just like Azure functions, logic apps scale automatically, you just create the process. It will trigger as many times as it is needed and always executes the complete process and has reliability features, like retry policies, built in. And because it only runs when it is triggered, you only pay for when it runs—you don’t pay for owning it. 

https://dotnet.microsoft.com/download/thank-you/azure-quick-start-ebook