"Memo": requestheaders is the cause of header loss when HTTP webrequest is submitted in POST.

"Memo": requestheaders is the cause of header loss when HTTP webrequest is submitted in POST.

Recently, when HttpWebRequest-helper class is completed, Headers are always lost in post json data ).

 

 

 

HttpWebRequest post json data, which consists of the following steps:

> Convert JSON to byte [].

> Get the write stream from HttpWebRequest. GetRequestStream.

> Write byte [] to this Stream.

 

Similar operations, including file upload and POST form-all must be converted to byte []

 

 

 

Core considerations:

Do not set the HttpWebRequest. ContentLength field. Manually setting this field will lead to the loss of the Header (especially the loss of custom headers ].

 

 

 

 

I hope that other friends with similar problems will not take detours.

> In the past two days, I have searched more than one hundred webpages for the BUG of header loss, and there is no answer.

> Decompiled the. Net underlying class library to check if Microsoft does not allow custom headers.

> In the end, such a simple line of code is a waste of three days.

 

 

Shu Xiaolong InkFx