First version not working, unsafe library

pkg/cache/cache.go

@@ -1,17 +1,20 @@
 package cache
 
 import (
+	"context"
 	"fmt"
 
 	ttl_map "github.com/leprosus/golang-ttl-map"
 
 	logger "github.com/maxlerebourg/crowdsec-bouncer-traefik-plugin/pkg/logger"
 )
+
 const (
-	cacheBannedValue        = "t"
-	cacheNoBannedValue      = "f"
+	cacheBannedValue   = "t"
+	cacheNoBannedValue = "f"
 )
 
+var ctx = context.Background()
 var cache = ttl_map.New()
 
 // Get Decision check in the cache if the IP has the banned / not banned value.
@@ -25,6 +28,33 @@ func GetDecision(clientIP string) (bool, error) {
 	return false, fmt.Errorf("no cache data")
 }
 
+func getDecisionLocalCache(clientIP string) (bool, error) {
+	banned, isCached := cache.Get(clientIP)
+	bannedString, isValid := banned.(string)
+	if isCached && isValid && len(bannedString) > 0 {
+		return bannedString == cacheBannedValue, nil
+	}
+	return false, fmt.Errorf("no cache data")
+}
+
+func getDecisionRedisCache(clientIP string) (bool, error) {
+	rdb := redis.NewClient(&redis.Options{
+		Addr:     "localhost:6379",
+		Password: "", // no password set
+		DB:       0,  // use default DB
+	})
+	banned, err := rdb.Get(ctx, "key").Result()
+	if err != nil {
+		panic(err)
+	}
+	banned, isCached := cache.Get(clientIP)
+	bannedString, isValid := banned.(string)
+	if isCached && isValid && len(bannedString) > 0 {
+		return bannedString == cacheBannedValue, nil
+	}
+	return false, fmt.Errorf("no cache data")
+}
+
 func SetDecision(clientIP string, isBanned bool, duration int64) {
 	if isBanned {
 		logger.Debug(fmt.Sprintf("%v banned", clientIP))