# How can I write a module that overwrite user header\_in

**URL:** <https://www.ruby-forum.com/t/how-can-i-write-a-module-that-overwrite-user-header-in/183881>\
**Category:** NGINX\
**Created:** [February 22, 2010, 9:37am UTC](https://www.ruby-forum.com/t/how-can-i-write-a-module-that-overwrite-user-header-in/183881 "2010-02-22T09:37:43Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![wuent](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/w/b4bc9f/32.png) [@wuent](https://www.ruby-forum.com/u/wuent)\
**Post date:** [February 22, 2010, 9:37am UTC](https://www.ruby-forum.com/t/how-can-i-write-a-module-that-overwrite-user-header-in/183881/1 "2010-02-22T09:37:43Z")

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I want to write a write a module that can intercept user requests,and  
then overwrite header\_in.  
The fastcgi can get the modified requests.

And how the config file writing?

Posted at Nginx Forum:

> **[how can I write a module that overwrite user header\_in](https://forum.nginx.org/read.php?2,56046,56046#msg-56046)**
>
> I want to write a write a module that can intercept user requests,and then overwrite header\_in. The fastcgi can get the modified requests. And how the config file writing?