Calling on-premise API from Azure Logic apps

Question

Hi All,

How we can call on-premise API from Azure Logic Apps ?

Answer 1

Hi @Anonymous

If the services are accessible over the internet then you call service endpoint over HTTP or HTTPS from azure logic apps. This article will help you with details steps to be followed: https://learn.microsoft.com/en-us/azure/connectors/connectors-native-http

If it is not accessible over the internet then this article will help with step by step process: https://learn.microsoft.com/en-us/azure/logic-apps/logic-apps-gateway-connection

Before you can access data sources on premises from your logic apps, you need to create an Azure resource after you install the on-premises data gateway on a local computer. Your logic apps then use this Azure gateway resource in the triggers and actions provided by the on-premises connectors that are available for Azure Logic Apps.

Answer 2

If your on-prem API is already mediated/exposed to web, then you can simply use HTTP connector and call it from LogicApp, you might want to go via Azure API Management Services.

If your API its not exposed to web and only available on your corporate network, then you might want to install an "OnPremise Data Gateway" and have it registered on Azure, then create a custom connector on Azure and use it from LogicApp.