Hi,

> 2. Any good advice on how I should do it? I was thinking on adding the
> validation somewhere in ngx_http_upstream_test_next (ngx_http_upstream.c),
> something like:
> if (r->method == NGX_HTTP_POST) {
> return NGX_DECLINED;
> }

Keep in mind that you should decline sending request to another backend,
only if you already sent it upstream. There is a bunch of errors (bad
gateway, connection timeout, etc) which could lead to the code path in
question, for which you should still send request to another backend.

Best regards,
Piotr Sikora < piotr.sikora@frickle.com >


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