upload file blob

Hello, I would like to store documents in a blob field. For that I have the following entity:

/**
 * @ApiResource(
 *     collectionOperations={
 *       "get"={"method"="GET", "normalization_context"={"groups"={ "get_document"}}},
 *       "post"={"method"="POST", "denormalization_context"={"groups"={"post_document"}}},
 *     },
 *     itemOperations={
 *       "get"={"method"="GET", "normalization_context"={"groups"={"get_document"}}},
 *       "put"={"method"="PUT", "denormalization_context"={"groups"={"put_document"}}},
 *       "delete"={"method"="DELETE"},
 *     },
 *     attributes={"order"={"dateDocument": "ASC"}}
 * )
 * @ApiFilter(SearchFilter::class, properties={"logement.id": "exact"})
 * @ORM\Entity(repositoryClass="App\Repository\DocumentRepository")
 */
class Document
{
    /**
     * @ORM\Id()
     * @Groups({"get_document"})
     * @ORM\GeneratedValue(strategy="AUTO")
     * @ORM\Column(type="integer", name="id_document")
     */
    private $id;

    /**
     * @Groups({"get_document"})
     * @ORM\Column(type="blob")
     */
    private $contenuDocument;

...

When I do a get_document, I get the following message:

title :  An error occurred
detail: An unexpected value could not be normalized: NULL

Do you have an idea please?

[teohhanhui]

Anyway, I’m not sure embedding binary data in JSON makes sense…

[jguyenot]

Thanks for your quikly answer.

I think i will create a custom controller to return the filestream directly. I think it’s a best practice that retourn this stream in base64 (front js is not the best for decoding)

Thanks.