From 56f5a2edc267e52f9ffc86bc21c359e90fa11b41 Mon Sep 17 00:00:00 2001
From: Alexander Sheiko <alexander.sheiko@mgid.com>
Date: Tue, 5 Jan 2021 14:21:08 +0200
Subject: [PATCH] Refresh guest token every 3 hours

---
 api.go     | 4 +++-
 scraper.go | 1 +
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/api.go b/api.go
index 7b0e1cd..2de6d19 100644
--- a/api.go
+++ b/api.go
@@ -6,6 +6,7 @@ import (
 	"io/ioutil"
 	"net/http"
 	"sync"
+	"time"
 )
 
 const bearerToken string = "AAAAAAAAAAAAAAAAAAAAANRILgAAAAAAnNwIzUejRCOuH5E6I8xnZz4puTs%3D1Zv7ttfk8LF81IUq16cHjhLTvJu4FA33AGWWjCpTnA"
@@ -23,7 +24,7 @@ var cacheIDs sync.Map
 
 // RequestAPI get JSON from frontend API and decodes it
 func (s *Scraper) RequestAPI(req *http.Request, target interface{}) error {
-	if s.guestToken == "" {
+	if s.guestToken == "" || s.guestCreatedAt.Before(time.Now().Add(-time.Hour*3)) {
 		err := s.GetGuestToken()
 		if err != nil {
 			return err
@@ -76,6 +77,7 @@ func (s *Scraper) GetGuestToken() error {
 	if s.guestToken, ok = jsn["guest_token"].(string); !ok {
 		return fmt.Errorf("guest_token not found")
 	}
+	s.guestCreatedAt = time.Now()
 
 	return nil
 }
diff --git a/scraper.go b/scraper.go
index b973c1c..91484a9 100644
--- a/scraper.go
+++ b/scraper.go
@@ -14,6 +14,7 @@ import (
 type Scraper struct {
 	client         *http.Client
 	guestToken     string
+	guestCreatedAt time.Time
 	includeReplies bool
 	searchMode     SearchMode
 }