Obviously, for this model to work each user must be authenticated.
显然，要使这个模型生效，每个用户都必须经过认证。
Frequently, other account specific data that has to be available once the user has been authenticated must also be stored.
在通常情况下，一旦用户通过验证，其他特定于账号的数据都必须是可用的，它们也必须被存储起来。
As Listing 6 illustrates, a POST request must be transmitted to the API endpoint by an authenticated client with the screen name of the user to be followed.
正如 清单 6 所述，必须由已通过验证的客户机使用被关注者的用户名将 POST 请求传递至 API 端点。
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