Provider.php

<?php

namespace SocialiteProviders\ThirtySevenSignals;

use GuzzleHttp\RequestOptions;
use SocialiteProviders\Manager\OAuth2\AbstractProvider;
use SocialiteProviders\Manager\OAuth2\User;

class Provider extends AbstractProvider
{
    public const IDENTIFIER = 'THIRTYSEVENSIGNALS';

    protected function getAuthUrl($state): string
    {
        return $this->buildAuthUrlFromBase('https://launchpad.37signals.com/authorization/new', $state);
    }

    protected function getTokenUrl(): string
    {
        return 'https://launchpad.37signals.com/authorization/token';
    }

    /**
     * {@inheritdoc}
     */
    protected function getUserByToken($token)
    {
        $response = $this->getHttpClient()->get(
            'https://launchpad.37signals.com/authorization.json',
            [
                RequestOptions::HEADERS => [
                    'Authorization' => 'Bearer '.$token,
                ],
            ]
        );

        return json_decode((string) $response->getBody(), true);
    }

    /**
     * {@inheritdoc}
     */
    protected function mapUserToObject(array $user)
    {
        return (new User)->setRaw($user)->map([
            'id'    => $user['identity']['id'], 'nickname' => null,
            'name'  => $user['identity']['first_name'].' '.$user['identity']['last_name'],
            'email' => $user['identity']['email_address'], 'avatar' => null,
        ]);
    }

    /**
     * {@inheritdoc}
     */
    protected function getTokenFields($code)
    {
        return array_merge(parent::getTokenFields($code), [
            'type' => 'web_server',
        ]);
    }

    /**
     * {@inheritdoc}
     */
    protected function getCodeFields($state = null)
    {
        return array_merge(parent::getCodeFields($state), [
            'type' => 'web_server',
        ]);
    }
}