Azure Function used as a claim exchanger

This blog article shows the claim exchanger Azure function.

Read the article from below to get started with creating a function with NodeJs and TypeScript:

https://docs.microsoft.com/en-us/azure/azure-functions/functions-reference-node#typescript

Fig 1 - The function is invoked by creating several headers containing API Management information, headers that are verified on the server-side

Fig 2 - The function is generic and makes calls the appropriate server's API to retrieve the roles claim, based on the application client ID passed into the call

Fig 3 - Make the REST API call

Fig 4 - Create a certificate for the B2C application web site and bind it to the custom domain and Azure function SSL

Fig 5 - Request the certificate's validation when the function is invoked so it will be called just by the policy and the application that is configured to use it

Fig 6 - Upload the function into Azure from Visual Code