Code refactoring for streams HandleFunc

internal/bubble/bubble.go

@@ -7,13 +7,7 @@ import (
 )
 
 func Init() {
-	streams.HandleFunc("bubble", handle)
-}
-
-func handle(url string) (core.Producer, error) {
-	conn := bubble.NewClient(url)
-	if err := conn.Dial(); err != nil {
-		return nil, err
-	}
-	return conn, nil
+	streams.HandleFunc("bubble", func(source string) (core.Producer, error) {
+		return bubble.Dial(source)
+	})
 }