How set cookie with go?

Question

I would like my golang server to send back a cookie in HTTP raiponce that will be placed on the user's computer. Here is my code

func userLogin(w http.ResponseWriter, r *http.Request) {
        cookie := &http.Cookie{
            Name:  "my-cookie",
            Value: "some value",
        }
        http.SetCookie(w, cookie)
        w.WriteHeader(200)
        w.Write([]byte("cookie is set))
        return
}

it is marked in the header

but I see no cookie to create

Answer 1

The browser defaults the cookie path to the request path.

It looks like you are setting the cookie in a request to /<something here>, but are expecting the cookie in a request to /.

Fix by setting the cookie path to /.

func userLogin(w http.ResponseWriter, r *http.Request) {
        cookie := &http.Cookie{
            Name:  "my-cookie",
            Value: "some value",
            Path: "/",
        }
        http.SetCookie(w, cookie)
        w.WriteHeader(200)
        w.Write([]byte("cookie is set))
}