change config.env to config.servername

config.go

@@ -4,7 +4,7 @@ import "errors"
 
 type Config struct {
 	Dsn        string
-	Env string
+	ServerName string
 }
 
 func (c Config) validate() error {
@@ -12,8 +12,8 @@ func (c Config) validate() error {
 		return errors.New("sentry DNS is required")
 	}
 
-	if c.Env == "" {
-		return errors.New("sentry ENV is required")
+	if c.ServerName == "" {
+		return errors.New("sentry SERVER_NAME is required")
 	}
 
 	return nil

sentry_echo.go

@@ -16,7 +16,7 @@ func WithEcho(e *echo.Echo, cfg Config) error {
 
 	if err := sentry.Init(sentry.ClientOptions{
 		Dsn:        cfg.Dsn,
-		Environment: cfg.Env,
+		ServerName: cfg.ServerName,
 	}); err != nil {
 		fmt.Printf("[sentry] initialization failed: %s \n", err.Error())
 		return err