https://learn.microsoft.com/en-us/rest/api/appservice/webapps/listfunctions
How can I generate the token highlighted in green dynamically using JavaScript or an Api? I know it can be generated using Azure CLI az account get-access-token but that does not fit my solution to help me monitor my functions programmatically.
You can acquire the access token either using the OAuth2 service endpoints, or MSAL. OAuth2 endpoints are Platform- and language-neutral, but MSAL is not.
The two Azure AD endpoints that you use to authenticate your client and acquire an access token are referred to as the OAuth2 /authorize and /token endpoints. How you use them depends on the type of OAuth2 authorization grant flow you need to support your app.
For instance, a non-interactive client can use client credentials grant, wherein the access token can be acquired by sending a POST request to the /token endpoint.
From Postman:
For more information, refer to the Azure REST API reference.