Use existing cookie to authenticate an API request

[sammit20]

Is there any way to authenticate using existing cookie and gets details from the API request? I am very new to golang, Also went through the Chapter 29 but couldn't relate to the case I am working on. If you have reading on that can you please point it out?

My Case:
I want to connect to the REST API of remote server via golang. However the authentication to the api is via cookie only. So need to pass the existing cookie information to get authenticated and pull out the details.

[tonyjafar]

req, err := http.NewRequest("GET", "/signout", nil)
if err != nil {
t.Fatal(err.Error())
}
res := httptest.NewRecorder()

handler := http.HandlerFunc(signout)
c := &http.Cookie{
	Name:   "session",
	Value:  cookieToSet,
	MaxAge: cAge,
}
req.AddCookie(c)
handler.ServeHTTP(res, req)