init code

internal/utils/stringx/replace.go

@@ -0,0 +1,11 @@
+package stringx
+
+import "strings"
+
+func ReplaceSuffix(s string, suffix string, newSuffix string) (string, bool) {
+	if strings.HasSuffix(s, suffix) {
+		replaced := s[:len(s)-len(suffix)] + newSuffix
+		return replaced, true
+	}
+	return s, false
+}

internal/utils/stringx/validation.go

@@ -0,0 +1,9 @@
+package stringx
+
+import "regexp"
+
+func IsAlphaNumeric(s string) bool {
+	match, _ := regexp.MatchString("^[a-zA-Z0-9]*$", s)
+	return match
+
+}