Order of execution of nginx filters

[Raghavan, Gopal]

Hi,

I have the following three directives:

location = /hello {
                 hello_world;
                 hola_mundo on;
                 bonjour_monde on;
}

hello_world is an nginx handler module that provides content “hello world”
hola_mundo and bonjour_monde are filters that add to the chain strings “hola mundo” and “bonjour monde” respectively.


Here is the output:
curl  "http://localhost:8090/hello"
hello worldhola mundobonjour monde


Switching the filter directives in location block has no impact on output string.

For eg:

location = /hello {
                 hello_world;
bonjour_monde on;
                 hola_mundo on;
}

Here is the output:
curl  "http://localhost:8090/hello"
hello worldhola mundobonjour monde


How do I control the order of execution of filters?
I already looked at objs/ngx_modules.c and auto/modules. My custom handlers and filters are not listed there.

One thing that I observed is that the order of listing the load_module modules/*.so in conf/nginx.conf does impact the order of execution of the filters.

Is there any other trick to adjust the execution order within the location block?

Thanks,
--
Gopal






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