I need to fire an Azure Logic App workflow from SharePoint Online library using a custom button in the library. I'm looking for ideas on how to create this but I can't find anything related. My workflow is kind of simple, I was looking for "For selected file" in Logic Apps but it's not available as a trigger. My workflow should be like Click the button in the SharePoint library and the workflow should send email notification for approval. The click/HTTPS POST call is a viable way to create the button? I would like some information or examples if possible.