Get the user profile information

After the user signs in successfully, request basic user information from the authorization server using the tokens that were returned in the previous step.

func getProfileData(r *http.Request) map[string]string {
  m := make(map[string]string)

  session, err := sessionStore.Get(r, "okta-custom-login-session-store")

  if err != nil || session.Values["access_token"] == nil ||
     session.Values["access_token"] == "" {
    return m
  }

  reqUrl := os.Getenv("ISSUER") + "/v1/userinfo"

  req, _ := http.NewRequest("GET", reqUrl, bytes.NewReader([]byte("")))
  h := req.Header
  h.Add("Authorization", "Bearer "+session.Values["access_token"].(string))
  h.Add("Accept", "application/json")

  client := &http.Client{}
  resp, _ := client.Do(req)
  body, _ := ioutil.ReadAll(resp.Body)
  defer resp.Body.Close()
  json.Unmarshal(body, &m)

  return m
}