feat(utils): Add functions to parse nullable UUID and UUID from string

pkg/utils/conv.go

@@ -3,6 +3,7 @@ package utils
 import (
 	"strconv"
 
+	"github.com/google/uuid"
 	"golang.org/x/crypto/bcrypt"
 )
 
@@ -31,3 +32,19 @@ func ParseInt(s string) int {
 	}
 	return i
 }
+
+func ParseNullableUUID(s *string) *uuid.UUID {
+	if s == nil || *s == "" {
+		return nil
+	}
+	id := ParseUUID(*s)
+	return &id
+}
+
+func ParseUUID(s string) uuid.UUID {
+	id, err := uuid.Parse(s)
+	if err != nil {
+		return uuid.Nil
+	}
+	return id
+}