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<p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:EN-US">Hi,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;mso-fareast-language:EN-US">Okay ¡V but what happens if you are communicating with a non REST endpoint. Consider a Web services endpoint for example where a request is only interacted with via POST but the operation
for example may frequently be a read based function akin to a HTTP GET? Is Squid just simply not going to help cache those requests? It is only helpful for more strict alignment to REST principles?<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Default Sans Serif"">Kind regards,<br>
<br>
Andy Armstrong </span><span style="font-size:11.0pt"><o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><b><span style="font-size:12.0pt;color:black">From:
</span></b><span style="font-size:12.0pt;color:black">squid-users <squid-users-bounces@lists.squid-cache.org> on behalf of Amos Jeffries <squid3@treenet.co.nz><br>
<b>Date: </b>Tuesday, 27 September 2022 at 19:45<br>
<b>To: </b>squid-users@lists.squid-cache.org <squid-users@lists.squid-cache.org><br>
<b>Subject: </b>[EXTERNAL] Re: [squid-users] TCP_MISS only<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt">On 27/09/22 23:01, Andy Armstrong wrote:<br>
> Hi Alex,<br>
> <br>
> That makes a lot of sense, I don¡¦t know how I overlooked that ¡V thank <br>
> you. I also agree, logically caching a 201 response makes little sense, <br>
> and it was just an example I had that was easy to try so I used that.<br>
> <br>
> I just altered the HTTP Return code so it sent 200 instead of 201, and <br>
> the result is sadly the same, I get many, many lines like this:<br>
> <br>
<br>
Unfortunately that is not enough. POST method is also not cacheable by <br>
default. See <https://www.rfc-editor.org/rfc/rfc9110#section-9.3.3
><br>
<br>
Consider what would happen when two clients POST different sets of data <br>
to the same URL. Which one should the cache handle *instead* of letting <br>
it be delivered to a server?<br>
<br>
<br>
> 1664272638.44310107 10.1.1.70 TCP_MISS/200 275 POST <br>
> <a href="http://192.168.0.2:3001/InternalCommunicationServices/message/email">http://192.168.0.2:3001/InternalCommunicationServices/message/email</a>
- <br>
> HIER_DIRECT/192.168.0.2 application/json<br>
> <br>
> My suspicion is still that my refresh_pattern is wrong:<br>
> <br>
> refresh_pattern -i <a href="http://129.168.0.2:3001%5C/.*">http://129.168.0.2:3001%5C/.*</a>
10080 100% 43200 <br>
> override-lastmod<br>
> <br>
<br>
refresh_pattern directive does not make things cacheable when they are <br>
not. It can only extend or shrink cacheability times.<br>
<br>
<br>
HTH<br>
Amos<br>
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