How to If-Modified-Since with Azure functions?

Question

I am creating azure functions based on my previous .net core api. Basically i was returning 304 not modified if request header has If-Modified-Since tag and my data hasnt changed since.
Using Api simply i can get
var requestHeaders = Request.GetTypedHeaders();
requestHeaders.IfModifiedSince

Can I do this in Azure functions?

Answer 1

There is a HttpRequest.Headers Property that returns a dictionary of the header values which you can use to get the value of a specific header by key.

In your case, something like req.Headers["If-Modified-Since"].ToString() should return the value of header as a string if present, or an empty string if not.