Failed to obtain Taobao order data: Why do you still jump to the login page with cookies and URL parameters?

Taobao order data crawling problem: breaking through the login page restrictions

Many users often encounter a problem when trying to obtain Taobao order data: even if the correct URL and some parameters are provided, or even cookies are carried, they will still be redirected to the login page. This article will use a case analysis to explain why only https://buyertrade.taobao.com/trade/itemlist/asyncBought.htm?action=itemlist/BoughtQueryAction&event_submit_do_query=1&_input_charset=utf8 , as well as parameters such as dateBegin and dateEnd , and with cookies, the order data is still not available, but it is jumped to the login page.

The user intends to obtain order data from the past month through this interface for financial accounting. He found that there was no obvious authentication token in the interface URL, but it was redirected to the login page after requesting, which was invalid even if you log in again. This has raised questions about Taobao's security mechanism.

The core of the problem is that although there is no explicit token in the interface URL, this does not mean there is no authentication mechanism. Taobao’s interface security mechanism is much more complex than simple tokens. There are two key points:

First, the cookie contains critical authentication information, which may be implicit Tokens or other security credentials . Relying on URL parameters alone is far from enough.

Secondly, the interface is likely to use a more complex signature algorithm (sign value) . This signature value is usually calculated based on the current time, cookie information and other fixed parameters, and is used to prevent data tampering or forgery. Taobao’s signature algorithm will be updated regularly, and simple MD5 encryption and other methods will be invalid.

Finally, I remind you to be cautious when operating and do not use the main account for testing, so as not to be banned. Obtaining Taobao order data requires in-depth understanding of its security mechanism and choosing a safer and more reliable method.

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