I've got this working, if you still need it?

Basically, I'm including my transformer at the response stage, so my Controller looks something like this:

public function index()
{
    return Response::api()->withCollection($this->repository->all(), new PointsTransformer);
}

So my repository is just returning a Doctrine array collection and then my transformer is exactly like the Dingo documentation.

Good luck!

I'm getting this error:

"Argument 1 passed to Dingo\Api\Http\Response\Factory::collection() must be an instance of Illuminate\Support\Collection, array given"

public function index(UserService $userService)
    {
        return $this->response->withCollection($userService->getAll(), new UserTransformer);

    }

Basically I'm doing a repository->findAll() query, which returns an array of Doctrine entities.

My transformer looks like this:

class UserTransformer extends TransformerAbstract
{

    /**
     * @param UserModel $user
     *
     * @return array
     */

    public function transform(UserModel $user)
    {
        return [
            'id'            => $user->getId(),
            'firstName'     => $user->getName1(),
            'lastName'      => $user->getName3(),
            'email'         => $user->getEmail()
        ];
    }
}

Any idea ?

Finally I found the solution:

The array provided by Doctrine should be converted into a Collection before it is passed to the Dingo Result:

use Illuminate\Support\Collection;
....

$this->response->withCollection(Collection::make($userService->getAll()), new UserTransformer);