src/Jwt/SignatureGenerator/WebTokenJwtSignatureGenerator.php
public function generate(JwtInterface $jwt): string
    {
        $jwk = JWKFactory::createFromKeyFile($jwt->getPath(), '', [
            'kid' => $jwt->getKey(),
        ]);

        $claims = [
            'iss' => $jwt->getTeamId(),
            'iat' => time(),
        ];

        $header = [
            'alg' => 'ES256',
            'kid' => $jwk->get('kid'),
        ];

        $payload = $this->jsonConverter->encode($claims);

        $jws = $this->jwsBuilder
            ->create()
            ->withPayload($payload)
            ->addSignature($jwk, $header)
            ->build();

        return $this->serializer->serialize($jws);
    }
public function generate(JwtInterface $jwt): string
    {
        $jwk = JWKFactory::createFromKeyFile($jwt->getPath(), '', [
            'kid' => $jwt->getKey(),
        ]);

        $claims = [
            'iss' => $jwt->getTeamId(),
            'iat' => time(),
        ];

        $header = [
            'alg' => 'ES256',
            'kid' => $jwk->get('kid'),
        ];

        $payload = $this->jsonConverter->encode($claims);

        $jws = $this->jwsBuilder
            ->create()
            ->withPayload($payload)
            ->addSignature($jwk, $header)
            ->build();

        return $this->serializer->serialize($jws);
    }
{@inheritdoc}