How to validate an array of Date with class validator?

Question

I have an array of dates in a post request body that I want to validate:

{
    "meals": [...],
    "dates": [
        "2022-03-06T11:00:00.000Z",
        "2022-03-07T11:00:00.000Z"
    ]
}

This is my dto class:

export class CopyMealsPlanDto {
...// Another array

  @IsArray()
  @ValidateNested({ each: true })
  @IsDate()
  @Type(() => Date)
  dates: Date[];
}

But I'm getting this error:

{
    "statusCode": 400,
    "message": [
        "dates must be a Date instance"
    ],
    "error": "Bad Request"
}

rostamiani · Accepted Answer · 2022-10-31 05:06:27Z

7

Try this one:

export class CopyMealsPlanDto {
...// Another array

  @IsDateString({}, { each: true })
  dates: Date[];
}

You can read more about how to validate an array here.

edited Oct 31, 2022 at 5:06

rostamiani

3,36510 gold badges43 silver badges82 bronze badges

answered May 15, 2022 at 18:36

amirreza mousavi

992 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

DSabalsa · Accepted Answer · 2022-04-25 00:45:10Z

1

You can use @IsDateString() decorator

https://github.com/typestack/class-validator#validation-decorators

answered Apr 25, 2022 at 0:45

DSabalsa

1261 gold badge1 silver badge5 bronze badges

2 Comments

webber Over a year ago

hi, if I use that, I'm getting this error: "dates must be a valid ISO 8601 date string"

Baris Senyerli Over a year ago

@webber Because @IsDateString checking date type for ISO8601. Documentation says: "Alias for @IsISO8601().". In your example date type is also ISO8601. Probably your data includes different type.

Collectives™ on Stack Overflow

How to validate an array of Date with class validator?

2 Answers 2

Comments

2 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

2 Comments

Your Answer

Sign up or log in

Post as a guest

Related