changes...

internal/utils/password_validator.go

@@ -0,0 +1,25 @@
+package utils
+
+import (
+	"unicode"
+
+	"github.com/go-playground/validator/v10"
+)
+
+func PasswordValidator(fl validator.FieldLevel) bool {
+	password := fl.Field().Interface().(string)
+
+	var hasUpper, hasNumber, hasLower = false, false, false
+
+	for _, c := range password {
+		if unicode.IsUpper(c) {
+			hasUpper = true
+		} else if unicode.IsLower(c) {
+			hasLower = true
+		} else if unicode.IsDigit(c) {
+			hasNumber = true
+		}
+	}
+
+	return hasUpper && hasNumber && hasLower
+}