Nginx : Replace GET parameter with rules

Question

Looking for strongly replacement GET parameter with fixed value

something like :

http://domain.com/index.php?alfa=1&beta=2&debug=true

to

http://domain.com/index.php?alfa=1&beta=2&debug=false

may be

if ($args ~ "debug=true") {
set  $args_debug false;
return 301 $uri;
}

but not work

Richard Smith · Accepted Answer · 2016-09-16 10:43:21Z

2

You can analyse the entire query string and capture the elements before and after the token you wish to modify. So that you can construct a new URI with the other elements intact:

if ($args ~ ^(.*)\bdebug=true\b(.*)$) { 
    return 301 $uri?$1debug=false$2;
}

See this caution on the use of the if directive. However, the example given here is safe.

answered Sep 16, 2016 at 10:43

Richard Smith

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1 Comment

user2514964 Over a year ago

condition works , Thanks. Just need construct desintaion right URL . I am lost filename (( $1, $2 , $3 is empty

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