By extracting the source ID value from the event header, the code is able to determine if this is a commissioning action.

通过从事件头部提取源id值，该代码能够确定这是不是一个分配操作。

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That ID is exposed as a header value, for your use.

该ID暴露为头信息值供你使用。

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The application client must provide a basic authentication header (which contains an authorized user’s user ID and password) in the HTTP header of the HTTP request.

在 HTTP 请求的头部中，该应用程序客户端必须提供基本验证头部（其包含已授权用户的用户 ID 和密码）。

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