added optional factionId

src/faction/faction.dto.ts

@@ -7,14 +7,18 @@ import {
   IsNumber,
   Min,
   Max,
+  IsOptional,
 } from 'class-validator';
 
 import { GameEntity } from '../game/game.entity';
-import { RoleValidation } from '../shared/custom-validation';
+import { RoleValidation, Uuid } from '../shared/custom-validation';
 import { GameDTO } from '../game/game.dto';
 import { FactionEntity, GameGroupEntity } from './faction.entity';
 
 export class FactionDTO {
+  @IsOptional()
+  @IsUUID('4')
+  factionId?: string;
   @IsString()
   @IsNotEmpty()
   @Length(2, 31)