How to get response body when using proxy_intercept_errors

[Desiree Valdez]

Stop emails to me

On Tue, Jul 14, 2020, 6:13 AM Maxim Dounin <mdounin at mdounin.ru> wrote:

> Hello!
>
> On Tue, Jul 14, 2020 at 04:25:46AM -0400, salmanpskply wrote:
>
> > I have a requirement where when proxied response error code is 401
> > (condition #1) and response body has text "SAML Token Expired" (condition
> > #2), I need to intercept it and redirect to refresh token API.
> >
> > I could do it partially where only error code 401 is considered. Not
> able to
> > find a way to read response body text to give condition #2:
>
> There is no way.  Errors are intercepted based on the response
> headers, and the response body is not read from the upstream
> server if the error is intercepted.
>
> If you need to analyze the response body, consider using njs
> instead.  Doing appropriate subrequest and looking into it might
> work for you, see here for details:
>
> http://nginx.org/en/docs/http/ngx_http_js_module.html
> http://nginx.org/en/docs/njs/reference.html#subrequest
>
> --
> Maxim Dounin
> http://mdounin.ru/
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>
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