APIPlatform (Symfony/REST) - "Error: Bad Request : Invalid IRI\"1\"" - rest

Question

there is the situation :
I would like to send information to my REST API (working on Symfony), but when i tried to send this line, i got some errors that i don't understand, like : This one .
I really tried to resolve it alone, but nothing helped me on forums.
I think about an attribute than can't probably be set to editiion, or the reverse : an attribute which is not in edition and has to be.
This is what i want : be able to modify "dateCommande" (attribute for Purchase Date) , "statut" (used for see the statement of the purchase) and "idUsager" (used for put an id for a user); and finally be able to create automatically an id ("$id").
Thanks beforehand to help me ! ^^
Code of my class "Categorie.php" :
namespace App\Entity;
use Doctrine\ORM\Mapping as ORM;
use ApiPlatform\Core\Annotation\ApiResource;
use ApiPlatform\Core\Annotation\ApiFilter;
use ApiPlatform\Core\Bridge\Doctrine\Orm\Filter\SearchFilter;
use ApiPlatform\Core\Bridge\Doctrine\Orm\Filter\RangeFilter;
use Symfony\Component\Serializer\Annotation\Groups;
use Symfony\Component\Validator\Constraints\NotNull;
use Symfony\Component\Validator\Constraints\NotBlank;
/**
* Commande
*
* #ORM\Table(name="commande", indexes={#ORM\Index(name="IDX_6EEAA67DCF034CDB", columns={"id_usager_id"})})
* #ORM\Entity
* #ApiResource(normalizationContext={"groups"={"commande"},"enable_max_depth"=true},denormalizationContext={"groups"={"commandeecriture"},"enable_max_depth"=true})
*/
class Commande
{
/**
* #var int
*
* #ORM\Column(name="id", type="integer", nullable=false)
* #ORM\Id
* #ORM\GeneratedValue(strategy="IDENTITY")
* #Groups({"commande"})
* #NotNull(message="L'id ne peut être null")
*/
private $id;
/**
* #var \DateTime
*
* #ORM\Column(name="date_commande", type="date", nullable=false)
* #Groups({"commande","commandeecriture"})
* #NotBlank(message="Date non renseignée")
*/
private $dateCommande;
/**
* #var string
*
* #ORM\Column(name="statut", type="string", length=255, nullable=false)
* #Groups({"commande","commandeecriture"})
* #NotBlank(message="Statut non renseigné")
*/
private $statut;
/**
* #var User
*
* #ORM\ManyToOne(targetEntity="User")
* #ORM\JoinColumns({
* #ORM\JoinColumn(name="id_usager_id", referencedColumnName="id")
* })
* #Groups({"commande", "commandeecriture"})
* #NotNull(message="L'id ne peut être null")
*/
private $idUsager;
/**
* Constructor
*/
public function __construct()
{
$this->idArticle = new \Doctrine\Common\Collections\ArrayCollection();
}
/**
* #return int
*/
public function getId(): int
{
return $this->id;
}
/**
* #param int $id
*/
public function setId(int $id): void
{
$this->id = $id;
}
/**
* #return \DateTime
*/
public function getDateCommande(): \DateTime
{
return $this->dateCommande;
}
/**
* #param \DateTime $dateCommande
*/
public function setDateCommande(\DateTime $dateCommande): void
{
$this->dateCommande = $dateCommande;
}
/**
* #return string
*/
public function getStatut(): string
{
return $this->statut;
}
/**
* #param string $statut
*/
public function setStatut(string $statut): void
{
$this->statut = $statut;
}
/**
* #return User
*/
public function getIdUsager(): User
{
return $this->idUsager;
}
/**
* #param User $idUsager
*/
public function setIdUsager(User $idUsager): void
{
$this->idUsager = $idUsager;
}
}

Answer 1

api-platform uses IRI instead of entity ids, try to replace idUsager="1" by idUsager="/usager/1". I'm guessing usager is the name of the related entity but if it's not then you just need to replace the actual name in the snippet in general it must be /related-entity-name/id