How to connect to on-premise api from Dynamics 365 plugin

Question

What is the most performant and secure method to call an on-premise API (integrated to on-premise systems not related to CRM) from a Dynamics 365 plugin in Azure?

Answer 1

Why do you want to user Dynamics API when you are already in Plugin for Azure.

Why not user native SDK for Dynamics on-prem .net4.6.2 Connect to Dynamics in Plugin using connection tool and use it.

Here is an example to do so, once connected you can perform CURD operation against dynamics.

https://crm365blog.wordpress.com/2018/05/27/connecting-to-crm-2013-2015-2016-and-dynamics-365-in-c/

one more article

https://rawishblog.wordpress.com/2018/07/16/how-to-connect-to-dynamics-crm-onpremises-ad-ifd-from-a-windows-form-application/