Azure Functions and Azure Application Gateway or API Management

Question

I have several Microsoft Azure functions developed. I would like to use a gateway with firewall to make my Azure functions available and protected using one public IP only.

Answer 1

Azure API management allows you to provide a single access point for all your customers.

If you've made a HTTP triggered Azure Function (or any SOAP or REST service for that matter), you can use API management to provide a central access point for this function. This allows you to do load balancing / hot swapping / rate limiting / authentication and authorization / IP whitelisting and more.

See here for some more info on HTTP triggered functions: https://docs.microsoft.com/en-us/azure/azure-functions/functions-create-serverless-api

See here for how to create an Open API for your Azure Function: https://docs.microsoft.com/en-us/azure/azure-functions/functions-openapi-definition