Getting started with a Module

[Andrei]

Hi,

You can cover all those stages in Lua. As for response body, check for
ngx.arg[1] https://github.com/openresty/lua-nginx-module#body_filter_by_lua
(it's available in certain stages only, but you can hack around that and
pass it using ngx.ctx) https://stackoverflow.com/a/54432177/2388324

On Wed, Dec 30, 2020 at 3:58 PM Federico Felman <ffjr at hotmail.com> wrote:

> Hello Andrei,
>
> Thanks for writing back.
>
> I wanted to take enough time check all the links.
>
> I’ve read about OpenResty but my concern is how to access the data I need.
>
> So basically I’m diving my process in stages.
>
> Stage 0: research and get the correct approach (this current stage)
>
> Stage 1: get all the request and response to go through a custom functions
> (processReq, processResp).
>
> Stage 2: write those functions to call the appropriate APIs.
>
> Stage 3: stress test and optimization.
>
> I think OpenResty solves the Stage 2 but I still don’t know how to handle
> properly the REQ/RESP, mostly the response since the REQ could be the first
> module called. But I couldn’t find anything clear on catching the response.
>
> Maybe this is pretty straight forward but I’m messing this up.
>
>
>
> Thanks you everyone for reading this.
>
>
>
>
>
> *From: *Andrei <lagged at gmail.com>
> *Sent: *Tuesday, December 29, 2020 4:24 PM
> *To: *nginx at nginx.org
> *Subject: *Re: Getting started with a Module
>
>
>
> Happy Holidays!
>
>
>
> You mean something like this?
>
>
> https://serverfault.com/questions/361556/is-it-possible-to-log-the-response-data-in-nginx-access-log
>
>
>
> Either way, you're probably looking at OpenResty Lua (
> https://github.com/openresty/lua-nginx-module), cosockets (
> https://github.com/openresty/lua-nginx-module#cosockets-not-available-everywhere),
> and maybe mlcache (https://github.com/thibaultcha/lua-resty-mlcache).
> Instead of writing a full blown module, consider using Lua. I know this
> isn't an OpenResty forum, but... https://opm.openresty.org/ also has a
> bunch of goodies that might help :)
>
>
>
> gl!
>
>
>
> On Tue, Dec 29, 2020 at 4:16 PM Federico Felman <ffjr at hotmail.com> wrote:
>
> Hello everyone and happy holidays.
>
> I’ve been asked to do a specific module for NGINX, I need to “log” all the
> requests and responses using some specific web services.
>
> For what I’ve seen I can read the REQ easily but I don’t see any way to
> access the response.
>
> Can you guys help me?
>
>
>
> Thanks in advance!!!
>
>
>
>
>
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