在node js中使用class-validator验证数组对象

Question

如果empty.here是我的格式，我想验证alcoholeId和alcoholeName：

   {
     "barId": "string",
     "barName": "string",
     "drinksItems": [
      {
      "alcoholId": "string",
      "alcoholName": "string",
      "mixerList": [
         {
           "mixerId": "string"
         }
       ],
      "modifierList": [
         {
           "modifierId": "string"
         }
       ]
    }]
}

Answer 1

为此，你需要有一个实体，并使用@ValidateNested和@Type来正确地转换它(只有在你使用class-transformer的情况下)。

class Alcohol {
    @IsNotEmpty()
    alcoholId: string;
    @IsNotEmpty()
    alcoholName: string;
}

class Bar {
    @IsNotEmpty() // <- requires the array to be present
    @ValidateNested()
    // @Type(() => Alcohol) // <- add only if you use class-transformer
    alcohols: Array<Alcohol>;
}