How can I read a header from an http request in golang?

Question

If I receive a request of type http.Request, how can I read the value of a specific header? In this case I want to pull the value of a jwt token out of the request

Answer 1

You can use the r.Header.Get:

func yourHandler(w http.ResponseWriter, r *http.Request) {
    ua := r.Header.Get("User-Agent")
    ...
}