Laravel Passport + 微信小程序完成OAuth2.0认证登录

Passport::routes();

// token有效期
Passport::tokensExpireIn(Carbon::now()->addDays(1));
// 可刷新token时间
Passport::refreshTokensExpireIn(Carbon::now()->addDays(2));

php artisan passport:install

use Laravel\Passport\HasApiTokens;
use Illuminate\Notifications\Notifiable;
use Illuminate\Foundation\Auth\User as Authenticatable;

class Wechat extends Authenticatable 
{
    use HasApiTokens, Notifiable;
}

public function findForPassport($username) {
    return $this->where('openId', $username)->first();
}

public function validateForPassportPasswordGrant($password)
{
    $decrypted = Crypt::decryptString($password);
    if ($decrypted == $this->openId) {
        return true;
    }
    return false;
}

'guards' => [
    'api' => [
        'driver' => 'passport',
        'provider' => 'wechat',
    ],
],

Route::group(['middleware' => 'auth:api'] , function () {
    ...
});

$http = new HttpClient(array( 'curl' => array( CURLOPT_SSL_VERIFYPEER => false, ), )); 
        $url = resolve('Illuminate\Http\Request')->getSchemeAndHttpHost().'/oauth/token';

        try {
            $response = $http->request('POST', $url, [
                'form_params' => [
                    'grant_type' => 'password',
                    'client_id' => '客户端ID',// 在oauth_clients表可见
                    'client_secret' => '客户端 密钥',
                    'username' => $username,
                    'password' => $password,
                ],
            ]);
        } catch (RequestException $e) {
            $resp = $e->getResponse();
            $code = $resp->getStatusCode();
            $content = json_decode((string)$resp->getBody(true));
            throw new Exception("Authorization failure ".$content->message.' HttpCode:'.$code, $code);
        }
        $res = json_decode((string) $response->getBody(), true);;
        return $res;

header: {
    Authorization:Bearer eyJ0eXAiOiJKV1QiLCJhbG...
}

\Auth::user();
或者
$request->user();