diff --git a/common/constants.go b/common/constants.go
index 9ee791df..654c1d91 100644
--- a/common/constants.go
+++ b/common/constants.go
@@ -91,12 +91,12 @@ var IsMasterNode = os.Getenv("NODE_TYPE") != "slave"
 var requestInterval, _ = strconv.Atoi(os.Getenv("POLLING_INTERVAL"))
 var RequestInterval = time.Duration(requestInterval) * time.Second
 
-var SyncFrequency = GetOrDefault("SYNC_FREQUENCY", 10*60) // unit is second
+var SyncFrequency = GetOrDefaultInt("SYNC_FREQUENCY", 10*60) // unit is second
 
 var BatchUpdateEnabled = false
-var BatchUpdateInterval = GetOrDefault("BATCH_UPDATE_INTERVAL", 5)
+var BatchUpdateInterval = GetOrDefaultInt("BATCH_UPDATE_INTERVAL", 5)
 
-var RelayTimeout = GetOrDefault("RELAY_TIMEOUT", 0) // unit is second
+var RelayTimeout = GetOrDefaultInt("RELAY_TIMEOUT", 0) // unit is second
 
 var GeminiSafetySetting = GetOrDefaultString("GEMINI_SAFETY_SETTING", "BLOCK_NONE")
 
@@ -127,10 +127,10 @@ var (
 // All duration's unit is seconds
 // Shouldn't larger then RateLimitKeyExpirationDuration
 var (
-	GlobalApiRateLimitNum            = GetOrDefault("GLOBAL_API_RATE_LIMIT", 180)
+	GlobalApiRateLimitNum            = GetOrDefaultInt("GLOBAL_API_RATE_LIMIT", 180)
 	GlobalApiRateLimitDuration int64 = 3 * 60
 
-	GlobalWebRateLimitNum            = GetOrDefault("GLOBAL_WEB_RATE_LIMIT", 60)
+	GlobalWebRateLimitNum            = GetOrDefaultInt("GLOBAL_WEB_RATE_LIMIT", 60)
 	GlobalWebRateLimitDuration int64 = 3 * 60
 
 	UploadRateLimitNum            = 10
diff --git a/common/crypto.go b/common/crypto.go
index 45228416..6b5efbd2 100644
--- a/common/crypto.go
+++ b/common/crypto.go
@@ -8,7 +8,7 @@ func Password2Hash(password string) (string, error) {
 	return string(hashedPassword), err
 }
 
-func ValidatePasswordAndHash(password string, hash string) bool {
+func ValidatePasswordAndHash(password, hash string) bool {
 	err := bcrypt.CompareHashAndPassword([]byte(hash), []byte(password))
 	return err == nil
 }
diff --git a/common/database.go b/common/database.go
index 76f2cd55..71b26208 100644
--- a/common/database.go
+++ b/common/database.go
@@ -4,4 +4,4 @@ var UsingSQLite = false
 var UsingPostgreSQL = false
 
 var SQLitePath = "one-api.db"
-var SQLiteBusyTimeout = GetOrDefault("SQLITE_BUSY_TIMEOUT", 3000)
+var SQLiteBusyTimeout = GetOrDefaultInt("SQLITE_BUSY_TIMEOUT", 3000)
diff --git a/common/email.go b/common/email.go
index b915f0f9..e7f44167 100644
--- a/common/email.go
+++ b/common/email.go
@@ -10,7 +10,7 @@ import (
 	"time"
 )
 
-func SendEmail(subject string, receiver string, content string) error {
+func SendEmail(subject, receiver, content string) error {
 	if SMTPFrom == "" { // for compatibility
 		SMTPFrom = SMTPAccount
 	}
diff --git a/common/embed-file-system.go b/common/embed-file-system.go
index 3ea02cf8..9fb88a80 100644
--- a/common/embed-file-system.go
+++ b/common/embed-file-system.go
@@ -13,7 +13,7 @@ type embedFileSystem struct {
 	http.FileSystem
 }
 
-func (e embedFileSystem) Exists(prefix string, path string) bool {
+func (e embedFileSystem) Exists(prefix, path string) bool {
 	_, err := e.Open(path)
 	if err != nil {
 		return false
diff --git a/common/utils.go b/common/utils.go
index 9a7038e2..744fb9e4 100644
--- a/common/utils.go
+++ b/common/utils.go
@@ -121,7 +121,7 @@ func UnescapeHTML(x string) interface{} {
 	return template.HTML(x)
 }
 
-func IntMax(a int, b int) int {
+func IntMax(a, b int) int {
 	if a >= b {
 		return a
 	} else {
@@ -176,7 +176,7 @@ func GetTimeString() string {
 	return fmt.Sprintf("%s%d", now.Format("20060102150405"), now.UnixNano()%1e9)
 }
 
-func Max(a int, b int) int {
+func Max(a, b int) int {
 	if a >= b {
 		return a
 	} else {
@@ -184,7 +184,7 @@ func Max(a int, b int) int {
 	}
 }
 
-func GetOrDefault(env string, defaultValue int) int {
+func GetOrDefaultInt(env string, defaultValue int) int {
 	if env == "" || os.Getenv(env) == "" {
 		return defaultValue
 	}
@@ -196,14 +196,14 @@ func GetOrDefault(env string, defaultValue int) int {
 	return num
 }
 
-func GetOrDefaultString(env string, defaultValue string) string {
+func GetOrDefaultString(env, defaultValue string) string {
 	if env == "" || os.Getenv(env) == "" {
 		return defaultValue
 	}
 	return os.Getenv(env)
 }
 
-func MessageWithRequestId(message string, id string) string {
+func MessageWithRequestId(message, id string) string {
 	return fmt.Sprintf("%s (request id: %s)", message, id)
 }
 
diff --git a/common/verification.go b/common/verification.go
index d8ccd6ea..5c8050c0 100644
--- a/common/verification.go
+++ b/common/verification.go
@@ -31,7 +31,7 @@ func GenerateVerificationCode(length int) string {
 	return code[:length]
 }
 
-func RegisterVerificationCodeWithKey(key string, code string, purpose string) {
+func RegisterVerificationCodeWithKey(key, code, purpose string) {
 	verificationMutex.Lock()
 	defer verificationMutex.Unlock()
 	verificationMap[purpose+key] = verificationValue{
@@ -43,7 +43,7 @@ func RegisterVerificationCodeWithKey(key string, code string, purpose string) {
 	}
 }
 
-func VerifyCodeWithKey(key string, code string, purpose string) bool {
+func VerifyCodeWithKey(key, code, purpose string) bool {
 	verificationMutex.Lock()
 	defer verificationMutex.Unlock()
 	value, okay := verificationMap[purpose+key]
@@ -54,7 +54,7 @@ func VerifyCodeWithKey(key string, code string, purpose string) bool {
 	return code == value.code
 }
 
-func DeleteKey(key string, purpose string) {
+func DeleteKey(key, purpose string) {
 	verificationMutex.Lock()
 	defer verificationMutex.Unlock()
 	delete(verificationMap, purpose+key)
diff --git a/model/main.go b/model/main.go
index bfd6888b..fea1b786 100644
--- a/model/main.go
+++ b/model/main.go
@@ -77,9 +77,9 @@ func InitDB() (err error) {
 		if err != nil {
 			return err
 		}
-		sqlDB.SetMaxIdleConns(common.GetOrDefault("SQL_MAX_IDLE_CONNS", 100))
-		sqlDB.SetMaxOpenConns(common.GetOrDefault("SQL_MAX_OPEN_CONNS", 1000))
-		sqlDB.SetConnMaxLifetime(time.Second * time.Duration(common.GetOrDefault("SQL_MAX_LIFETIME", 60)))
+		sqlDB.SetMaxIdleConns(common.GetOrDefaultInt("SQL_MAX_IDLE_CONNS", 100))
+		sqlDB.SetMaxOpenConns(common.GetOrDefaultInt("SQL_MAX_OPEN_CONNS", 1000))
+		sqlDB.SetConnMaxLifetime(time.Second * time.Duration(common.GetOrDefaultInt("SQL_MAX_LIFETIME", 60)))
 
 		if !common.IsMasterNode {
 			return nil