3.协议端点（3. Protocol Endpoints）

 授权过程采用了两种授权服务器端点（HTTP资源）：

• 授权端点——客户端用其通过用户代理重定向从资源所有者获取授权。
• 令牌端点——客户端用其将授权许可交换为访问令牌，通常伴有客户端身份验证。

以及一种客户端端点：

• 重定向端点——授权服务器用其通过资源所有者用户代理向客户端返回含有授权凭据的响应。

并不是每种授权许可类型都采用两种端点。

扩展许可类型可以按需定义其他端点。

 

3. Protocol Endpoints

   The authorization process utilizes two authorization server endpoints
   (HTTP resources):

   o  Authorization endpoint - used by the client to obtain
      authorization from the resource owner via user-agent redirection.

   o  Token endpoint - used by the client to exchange an authorization
      grant for an access token, typically with client authentication.

   As well as one client endpoint:

   o  Redirection endpoint - used by the authorization server to return
      responses containing authorization credentials to the client via
      the resource owner user-agent.

   Not every authorization grant type utilizes both endpoints.
   Extension grant types MAY define additional endpoints as needed.