How use type with QueryParams

[sjarrossay]

Hello,

I try to use type with QueryParams

export type MyType = 'type1' | 'type2';

  @Get('/')
  async tryType(
    @QueryParams('type') type: MyType ,
  ) {
    /.../
  }

But I've got this error:

{
    "name": "AJV_VALIDATION_ERROR",
    "message": "Bad request on parameter \"request.query.type\".\nValue must be object. Given value: \"type1\"",
    "status": 400,
    "code": null,
    "errors": [
        {
            "instancePath": "",
            "schemaPath": "#/type",
            "keyword": "type",
            "params": {
                "type": "object"
            },
            "message": "must be object",
            "data": "type1",
            "dataPath": ""
        }
    ]
}

How can I fix it, to work with type ?

Thanks in advance

[Romakita]

Type as now consistency in js. So typescript convert type to Object (as metadata). Prefer enum usage:

export type MyType = 'type1' | 'type2';

export class MyController {
  @Get('/')
  async tryType(@QueryParams('type') @Enum('type1', 'type2') type: MyType) {
  }
}

Better Alternative:

export enum MyEnum {
  TYPE_1 = "type1",
  TYPE_2 = "type2"
}

export class MyController {
  @Get('/')
  async tryType(@QueryParams('type') @Enum(MyEnum) type: MyEnum) {
  }
}

see you