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phplaravellaravel-data

spatie/laravel-data transfer object with array of string

Using spatie/laravel-data to create data transfer objects. I need to declare a property that takes an array of strings.

The post payload will be as follows:

{
    "countries": ["en", "de"]
}

How do I declare this in the spatie/laravel-data object? Tried doing this:

class ExampleData extends Data
{
    public function __construct(

        public ?string $someProperty,
 
        #[DataCollectionOf(string::class)]
        public ?DataCollection $countries) 
        {
        
        }
    }
}

However, this throws an error:

Data collection property countries has an annotation that isn't a data object or is missing an annotation.

How can I declare an array of integers or strings in this data object?

Solution

  • The right way should be to declare it with an array keyword

    public ?array $countries

    The above line works