nginx - read custom header from upstream server

Question

I am using nginx as a reverse proxy and trying to read a custom header from the response of an upstream server  Apache  without success  The Apache response is the following   HTTP 1 0 200 OK Date  Fri  14 Sep 2012 20 18 29 GMT  Server  Apache 2 2 17  Ubuntu  X-Powered-By  PHP 5 3 5-1ubuntu7 10 Connection  close Content-Type  application json  charset UTF-8 My-custom-header  1   I want to read the value from My-custom-header and use it in a if clause   location                       get My-custom-header value here                Is this possible  Thanks in advance

User · Answer

I was facing the same issue  I tried both  http my custom header and  sent http my custom header but it did not work for me   Although solved this issue by using  upstream http my custom header

User · Answer

http name of the header key  i e if you have origin   domain com in header  you can use  http origin to get  domain com   In nginx does support arbitrary request header field  In the above example last part of a variable name is the field name converted to lower case with dashes replaced by underscores  Reference doc here  http   nginx org en docs http ngx http core module html var http   For your example the variable would be  http my custom header

User · Answer

Use  http MY CUSTOM HEADER  You can write some-thing like  set my header  http MY CUSTOM HEADER  if  my header     some-value      do some thing

[nginx] nginx - read custom header from upstream server

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