Implement metrics collection for API server (#143)

storage_redis.go

@@ -1,70 +0,0 @@
-package main
-
-import (
-	"context"
-	"fmt"
-	"os"
-	"strings"
-	"time"
-
-	"github.com/gofrs/uuid"
-	"github.com/pkg/errors"
-	redis "github.com/redis/go-redis/v9"
-)
-
-const redisDefaultPrefix = "io.luzifer.ots"
-
-type storageRedis struct {
-	conn *redis.Client
-}
-
-func newStorageRedis() (storage, error) {
-	if os.Getenv("REDIS_URL") == "" {
-		return nil, fmt.Errorf("REDIS_URL environment variable not set")
-	}
-
-	// We replace the old URI format
-	//		tcp://auth:password@127.0.0.1:6379/0
-	// with the new one
-	//		redis://<user>:<password>@<host>:<port>/<db_number>
-	// in order to maintain backwards compatibility
-	opt, err := redis.ParseURL(strings.Replace(os.Getenv("REDIS_URL"), "tcp://", "redis://", 1))
-	if err != nil {
-		return nil, errors.Wrap(err, "parsing REDIS_URL")
-	}
-
-	s := &storageRedis{
-		conn: redis.NewClient(opt),
-	}
-
-	return s, nil
-}
-
-func (s storageRedis) Create(secret string, expireIn time.Duration) (string, error) {
-	id := uuid.Must(uuid.NewV4()).String()
-	err := s.conn.Set(context.Background(), s.redisKey(id), secret, expireIn).Err()
-
-	return id, errors.Wrap(err, "writing redis key")
-}
-
-func (s storageRedis) ReadAndDestroy(id string) (string, error) {
-	secret, err := s.conn.Get(context.Background(), s.redisKey(id)).Result()
-	if err != nil {
-		if errors.Is(err, redis.Nil) {
-			return "", errSecretNotFound
-		}
-		return "", errors.Wrap(err, "getting key")
-	}
-
-	err = s.conn.Del(context.Background(), s.redisKey(id)).Err()
-	return secret, errors.Wrap(err, "deleting key")
-}
-
-func (storageRedis) redisKey(id string) string {
-	prefix := redisDefaultPrefix
-	if prfx := os.Getenv("REDIS_KEY"); prfx != "" {
-		prefix = prfx
-	}
-
-	return strings.Join([]string{prefix, id}, ":")
-}