fix: move sessionstore -> memstore

server/memorystore/providers/redis/provider.go

@@ -0,0 +1,75 @@
+package redis
+
+import (
+	"context"
+	"strings"
+	"time"
+
+	"github.com/go-redis/redis/v8"
+	log "github.com/sirupsen/logrus"
+)
+
+// RedisClient is the interface for redis client & redis cluster client
+type RedisClient interface {
+	HMSet(ctx context.Context, key string, values ...interface{}) *redis.BoolCmd
+	Del(ctx context.Context, keys ...string) *redis.IntCmd
+	HDel(ctx context.Context, key string, fields ...string) *redis.IntCmd
+	HMGet(ctx context.Context, key string, fields ...string) *redis.SliceCmd
+	HGetAll(ctx context.Context, key string) *redis.StringStringMapCmd
+	Set(ctx context.Context, key string, value interface{}, expiration time.Duration) *redis.StatusCmd
+	Get(ctx context.Context, key string) *redis.StringCmd
+}
+
+type provider struct {
+	ctx   context.Context
+	store RedisClient
+}
+
+// NewRedisProvider returns a new redis provider
+func NewRedisProvider(redisURL string) (*provider, error) {
+	redisURLHostPortsList := strings.Split(redisURL, ",")
+
+	if len(redisURLHostPortsList) > 1 {
+		opt, err := redis.ParseURL(redisURLHostPortsList[0])
+		if err != nil {
+			log.Debug("error parsing redis url: ", err)
+			return nil, err
+		}
+		urls := []string{opt.Addr}
+		urlList := redisURLHostPortsList[1:]
+		urls = append(urls, urlList...)
+		clusterOpt := &redis.ClusterOptions{Addrs: urls}
+
+		rdb := redis.NewClusterClient(clusterOpt)
+		ctx := context.Background()
+		_, err = rdb.Ping(ctx).Result()
+		if err != nil {
+			log.Debug("error connecting to redis: ", err)
+			return nil, err
+		}
+
+		return &provider{
+			ctx:   ctx,
+			store: rdb,
+		}, nil
+	}
+
+	opt, err := redis.ParseURL(redisURL)
+	if err != nil {
+		log.Debug("error parsing redis url: ", err)
+		return nil, err
+	}
+
+	rdb := redis.NewClient(opt)
+	ctx := context.Background()
+	_, err = rdb.Ping(ctx).Result()
+	if err != nil {
+		log.Debug("error connecting to redis: ", err)
+		return nil, err
+	}
+
+	return &provider{
+		ctx:   ctx,
+		store: rdb,
+	}, nil
+}