指导我使用hpleague库实现Oauth2 PHP服务器

我将Slim Framework与Eloquent ORM一起使用。正在尝试实施https://github.com/thephpleague/oauth2-server但我完全不知道该怎么做。在用composer添加了这个之后，我用这个包中提供的sql文件创建了数据库。

现在建议实现存储接口。我不想这么做，所以我只是复制了在示例文件夹中找到的存储类。我想它们应该像我使用相同的数据库一样工作，对吧？

此外，目前还不清楚如何在数据库中进行初始种子设定。这是我正在尝试password方法的路由器。

$server = new 'League'OAuth2'Server'AuthorizationServer;
$server->setSessionStorage(new SessionStorage);
$server->setAccessTokenStorage(new AccessTokenStorage);
$server->setClientStorage(new ClientStorage);
$server->setScopeStorage(new ScopeStorage);
$passwordGrant = new 'League'OAuth2'Server'Grant'PasswordGrant();
$passwordGrant->setVerifyCredentialsCallback(function ($username, $password) {
    // implement logic here to validate a username and password, return an ID if valid, otherwise return false
    return 1;
});
$server->addGrantType($passwordGrant);
$app->post('/token',function() use ($server,$app){
    try{
        $response = $server->issueAccessToken();
        $res = $app->response();
        $res['Content-Type'] = 'application/json';
        $res->body(json_encode($response));
    } catch ('Exception $e) {
       var_dump($e);
    }
});

我对发生的事情感到非常沮丧。这引发以下异常。[我在数据库中添加了作用域ok]

object(League'OAuth2'Server'Exception'InvalidScopeException)[82]
  public 'httpStatusCode' => int 400
  public 'errorType' => string 'invalid_scope' (length=13)
  public 'serverShouldRedirect' => boolean true
  protected 'message' => string 'The requested scope is invalid, unknown, or malformed. Check the "ok" scope.' (length=76)
  private 'string' (Exception) => string '' (length=0)
  protected 'code' => int 0
  protected 'file' => string 'C:'wamp'www'linkshare'vendor'league'oauth2-server'src'Grant'AbstractGrant.php' (length=77)
  protected 'line' => int 163
  private 'trace' (Exception) => 
    array (size=11)
      0 => 
        array (size=6)
          'file' => string 'C:'wamp'www'linkshare'vendor'league'oauth2-server'src'Grant'PasswordGrant.php' (length=77)
          'line' => int 130
          'function' => string 'validateScopes' (length=14)
          'class' => string 'League'OAuth2'Server'Grant'AbstractGrant' (length=40)
          'type' => string '->' (length=2)
          'args' => 
            array (size=2)
              ...
      1 => 
        array (size=6)
          'file' => string 'C:'wamp'www'linkshare'vendor'league'oauth2-server'src'AuthorizationServer.php' (length=77)
          'line' => int 330
          'function' => string 'completeFlow' (length=12)
          'class' => string 'League'OAuth2'Server'Grant'PasswordGrant' (length=40)
          'type' => string '->' (length=2)
          'args' => 
            array (size=0)
              ...
      2 => 
        array (size=6)
          'file' => string 'C:'wamp'www'linkshare'index.php' (length=31)
          'line' => int 67
          'function' => string 'issueAccessToken' (length=16)
          'class' => string 'League'OAuth2'Server'AuthorizationServer' (length=40)
          'type' => string '->' (length=2)
          'args' => 
            array (size=0)
              ...
      3 => 
        array (size=2)
          'function' => string '{closure}' (length=9)
          'args' => 
            array (size=0)
              ...
      4 => 
        array (size=4)
          'file' => string 'C:'wamp'www'linkshare'vendor'slim'slim'Slim'Route.php' (length=53)
          'line' => int 462
          'function' => string 'call_user_func_array' (length=20)
          'args' => 
            array (size=2)
              ...
      5 => 
        array (size=6)
          'file' => string 'C:'wamp'www'linkshare'vendor'slim'slim'Slim'Slim.php' (length=52)
          'line' => int 1326
          'function' => string 'dispatch' (length=8)
          'class' => string 'Slim'Route' (length=10)
          'type' => string '->' (length=2)
          'args' => 
            array (size=0)
              ...
      6 => 
        array (size=6)
          'file' => string 'C:'wamp'www'linkshare'vendor'slim'slim'Slim'Middleware'Flash.php' (length=64)
          'line' => int 85
          'function' => string 'call' (length=4)
          'class' => string 'Slim'Slim' (length=9)
          'type' => string '->' (length=2)
          'args' => 
            array (size=0)
              ...
      7 => 
        array (size=6)
          'file' => string 'C:'wamp'www'linkshare'vendor'slim'slim'Slim'Middleware'MethodOverride.php' (length=73)
          'line' => int 92
          'function' => string 'call' (length=4)
          'class' => string 'Slim'Middleware'Flash' (length=21)
          'type' => string '->' (length=2)
          'args' => 
            array (size=0)
              ...
      8 => 
        array (size=6)
          'file' => string 'C:'wamp'www'linkshare'vendor'slim'slim'Slim'Middleware'PrettyExceptions.php' (length=75)
          'line' => int 67
          'function' => string 'call' (length=4)
          'class' => string 'Slim'Middleware'MethodOverride' (length=30)
          'type' => string '->' (length=2)
          'args' => 
            array (size=0)
              ...
      9 => 
        array (size=6)
          'file' => string 'C:'wamp'www'linkshare'vendor'slim'slim'Slim'Slim.php' (length=52)
          'line' => int 1271
          'function' => string 'call' (length=4)
          'class' => string 'Slim'Middleware'PrettyExceptions' (length=32)
          'type' => string '->' (length=2)
          'args' => 
            array (size=0)
              ...
      10 => 
        array (size=6)
          'file' => string 'C:'wamp'www'linkshare'index.php' (length=31)
          'line' => int 131
          'function' => string 'run' (length=3)
          'class' => string 'Slim'Slim' (length=9)
          'type' => string '->' (length=2)
          'args' => 
            array (size=0)