I have an entity Professionnal with Jobs in API Plateform project 3.2.

When I call host/api/professionnals I got a result like this :

{
    "data": [
        {
            "id": "/api/professionnals/1",
            "type": "Professionnal",
            "attributes": {
                "email": "[email protected]",
                "firstname": "JOHN",
                "lastname": "DOE"
            },
            "relationships": {
                "jobs": {
                    "data": [
                        {
                            "type": "Job",
                            "id": "/api/jobs/1"
                        },
                        {
                            "type": "Job",
                            "id": "/api/jobs/2"
                        }
                    ]
                }
            }
        },
        ...
    ]
}

I would like the job label property but it seems to be more difficult with relation ManyToMany in API Plateform to get it.

Professionnal.php Entity

<?php

namespace AppEntity;

use ...

#[ApiResource(normalizationContext: ['groups' => ['professionnal:read']])]
#[ORMEntity(repositoryClass: ProfessionnalRepository::class)]
#[ORMUniqueConstraint(name: 'UNIQ_IDENTIFIER_EMAIL', fields: ['email'])]
class Professionnal implements UserInterface, PasswordAuthenticatedUserInterface {
    
    ...

    #[AssertNotBlank]
    #[AssertEmail]
    #[ORMColumn(length: 180, unique: true)]
    #[Groups(['professionnal:read'])]
    private ?string $email = null;

    ...
    
    #[ORMColumn(length: 150)]
    #[Groups(['professionnal:read'])]
    private ?string $firstname = null;

    #[ORMColumn(length: 255)]
    #[Groups(['professionnal:read'])]
    private ?string $lastname = null;

    ...

    /**
     * @var Collection<int, Job>
     */
    #[ORMManyToMany(targetEntity: Job::class, inversedBy: 'professionnals', fetch: "EAGER")]
    #[ORMJoinTable(name: 'professionnal_job')]
    #[ORMJoinColumn(name: 'professionnal_id', referencedColumnName: 'id', nullable: false)]
    #[ORMInverseJoinColumn(name: 'job_id', referencedColumnName: 'id', nullable: false)]
    #[Groups(['professionnal:read'])]
    private Collection $jobs;


    public function __construct() {
    
        $this->jobs = new ArrayCollection();
    }

    ...
    
    /**
     * @return Job[]
     */
    #[Groups(['professionnal:read'])]
    public function getJobs(): array {
        return $this->jobs->getValues();
    }


}

Job.php Entity

<?php

namespace AppEntity;

...

#[ORMEntity(repositoryClass: JobRepository::class)]
#[ApiResource()]
class Job {
    #[ORMId]
    #[ORMGeneratedValue]
    #[ORMColumn]
    private ?int $id = null;

    #[ORMColumn(length: 255)]
    #[Groups(['professionnal:read', 'job:read'])]
    private ?string $label = null;


    /**
     * @var Collection<int, Professionnal>
     */
    #[ORMManyToMany(targetEntity: Professionnal::class, mappedBy: 'jobs')]
    private Collection $professionnals;

    public function __construct() {
        $this->professionnals = new ArrayCollection();
    }

    public function __toString(): string {
        return (is_null($this->getLabel())) ? '' : $this->getLabel();
    }

    public function getId(): ?int {
        return $this->id;
    }

    public function getLabel(): ?string {
        return $this->label;
    }

    public function setLabel(string $label): static {
        $this->label = $label;

        return $this;
    }


    /**
     * @return Collection<int, Professionnal>
     */
    public function getProfessionnals(): Collection {
        return $this->professionnals;
    }

    ...
}

I tried to add this config code without success :/

api_platform:
    eager_loading:
        max_joins: 100

Someone has got an idea ? Should I find a workaround or there is a proper solution to do this ?