I'm trying to start with the basics and get any returned results from the Azure API for Bing's web search. I have successfully produced results through their sandbox API Testing Console, but in a live environment am not gettng anywhere. I am familiar with previous SO posts on the Bing API, but these responses are 4 or 5 years old and do not appear to reference the current API.
The Azure docs reference setting the Ocp-Apim-Subscription-Key header to the API key. It's frustrating when in places Microsoft's own documentation appears very dated. I am sure I am the first to complain about this!
Note: while writing up this question, I got a working solution. I am going ahead posting along with an answer with working code. Examples for the Bing API v5.0 seem few and far between.