[undertow-dev] Proxy and chunking.

[Stuart Douglas]

On Thu, 5 Mar 2020 at 20:29, Jocke Eriksson <jockeeriksson at msn.com> wrote:

> Hi devs and followers we have a problem and maybe someone on this list
> have some input.
>
> We use undertow as an API gateway in front of JBoss application servers.
> One API we have is responding with a chunked response, and the receiving
> side is expecting that each chunk is a valid JSon object.
> When we analyze the TCP dumps it looks like some chunks are not the full
> JSon response we are expecting.
>

This is a terrible idea, chunking is an implementation detail of the HTTP
transport layer. Proxies are allowed to change the chunk boundaries.


>
> So the question is could this be a problem in the gateway?
>
> I found a flag called PRE_CHUNKED_RESPONSE could this be the answer.
> If so, how do we apply it in a proxy handler?
>

You can't really, the client the proxy uses will strip the chunk data, so
the proxy will never see it, this would be a feature request.

Stuart


>
> Regards Joakim.
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