Yes, the cachekey plugin allows you to add request header values into the cache key -- so, your Green and Black objects would be stored distinctly.
I'd probably go down that route, and use the Vary for compression alternates. On Mon, Feb 11, 2019 at 7:39 AM Divittorio, Vincenzo < [email protected]> wrote: > Yes this is exactly what I need š > > But if the headers are more than one, for example 10 headers, have I use > this? > > > https://docs.trafficserver.apache.org/en/latest/admin-guide/plugins/cachekey.en.html > <https://urldefense.proofpoint.com/v2/url?u=https-3A__docs.trafficserver.apache.org_en_latest_admin-2Dguide_plugins_cachekey.en.html&d=DwMFaQ&c=eIGjsITfXP_y-DLLX0uEHXJvU8nOHrUK8IrwNKOtkVU&r=nsV__I40yD7vHZxsO42FPFt3gWL4Bb_P7rT1RrUHG-kYWyc9mkNvj7z_a9YHfsi9&m=QXdAsgAblWKAKBH5DVuTWutlYPER7sJMY-ZyASvPkfY&s=K-bMLOPfL3Cp4TJDg6Hodq68Y11D3KkJ6ssZnkz4Yhk&e=> > > thanks a lot for your help > > > > *From:* David Carlin <[email protected]> > *Sent:* lunedƬ 11 febbraio 2019 16:27 > *To:* Divittorio, Vincenzo <[email protected]> > *Cc:* [email protected] > *Subject:* Re: [External] Re: how manage headers in cache > > > > I still stand by my recommendation :) Vary header is what you want. If > you add Vary to the origin response, the next request ATS will make sure > Surname from request matches Surname on cached response prior to serving > item from cache. If it doesn't match, it will go to origin. > > > > Maybe this article explains Vary header better - see "How Vary works: a > recap" > > > > https://www.fastly.com/blog/getting-most-out-vary-fastly > <https://urldefense.proofpoint.com/v2/url?u=https-3A__www.fastly.com_blog_getting-2Dmost-2Dout-2Dvary-2Dfastly&d=DwMFaQ&c=eIGjsITfXP_y-DLLX0uEHXJvU8nOHrUK8IrwNKOtkVU&r=nsV__I40yD7vHZxsO42FPFt3gWL4Bb_P7rT1RrUHG-kYWyc9mkNvj7z_a9YHfsi9&m=A-yGM7PTUB26LvK21C_UAb37PIKVe6QQa4726c_HX4U&s=vnYdfyEPgGeeswCF3LnMYDhipeoZFQSa26rPFzL_8r8&e=> > > > > David > > > > On Mon, Feb 11, 2019 at 8:08 AM Divittorio, Vincenzo < > [email protected]> wrote: > > Hello, > > I donāt want to add header in the response but to identiy an unique > request I need to evaluate URI request and only one header in the request. > > You imagine that I have a rqeust that accept name in query param and > surname in the header. > > The response will return āHello Name surnameā. It means that to understand > if the request is unique or not, if the request is already present or not I > need to evaluate also one header in the request. > > > > If I evaluate just the URI it is not sufficient > > > > Example > > Request 1 /get/username?name=Peter > > HEADER > > Surname: Green > > > > Response Hello Peter Green > > > > Request 2 /get/username?name=Peter > > HEADER > > Surname: Black > > > > Response Hello Peter Black > > > > If I will evaluate just the header I will not able if we are talking about > Peter Green or Peter Black. > > So finally how I can evaluate also an header in the request? > > > > Thanks > > > > > > *From:* David Carlin <[email protected]> > *Sent:* lunedƬ 11 febbraio 2019 13:52 > *To:* [email protected]; Divittorio, Vincenzo < > [email protected]> > *Subject:* [External] Re: how manage headers in cache > > > > Vincenzo, > > What if you add "Vary: Surname" header to the origin response? > > https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Vary > <https://urldefense.proofpoint.com/v2/url?u=https-3A__developer.mozilla.org_en-2DUS_docs_Web_HTTP_Headers_Vary&d=DwMFaQ&c=eIGjsITfXP_y-DLLX0uEHXJvU8nOHrUK8IrwNKOtkVU&r=nsV__I40yD7vHZxsO42FPFt3gWL4Bb_P7rT1RrUHG-kYWyc9mkNvj7z_a9YHfsi9&m=QXdAsgAblWKAKBH5DVuTWutlYPER7sJMY-ZyASvPkfY&s=oeZEV71gGZEKIeCNau7I0lfxMDv3MCedSoVBDtsI9MY&e=> > > > > Also be aware of this ATS setting which controls the maximum number of > alternates for an object in cache (for a given URI): > > > > > https://docs.trafficserver.apache.org/en/latest/admin-guide/files/records.config.en.html?highlight=empty#proxy-config-cache-limits-http-max-alts > <https://urldefense.proofpoint.com/v2/url?u=https-3A__docs.trafficserver.apache.org_en_latest_admin-2Dguide_files_records.config.en.html-3Fhighlight-3Dempty-23proxy-2Dconfig-2Dcache-2Dlimits-2Dhttp-2Dmax-2Dalts&d=DwMFaQ&c=eIGjsITfXP_y-DLLX0uEHXJvU8nOHrUK8IrwNKOtkVU&r=nsV__I40yD7vHZxsO42FPFt3gWL4Bb_P7rT1RrUHG-kYWyc9mkNvj7z_a9YHfsi9&m=QXdAsgAblWKAKBH5DVuTWutlYPER7sJMY-ZyASvPkfY&s=trsxp1_pf_DhVrLtthikdhBYuVvVYabPc_CEP-t4dC4&e=> > > > > If you expect lots of alternates, I would consider the cachekey plugin so > that you can make the request header part of the cache key: > > > > > https://docs.trafficserver.apache.org/en/latest/admin-guide/plugins/cachekey.en.html > <https://urldefense.proofpoint.com/v2/url?u=https-3A__docs.trafficserver.apache.org_en_latest_admin-2Dguide_plugins_cachekey.en.html&d=DwMFaQ&c=eIGjsITfXP_y-DLLX0uEHXJvU8nOHrUK8IrwNKOtkVU&r=nsV__I40yD7vHZxsO42FPFt3gWL4Bb_P7rT1RrUHG-kYWyc9mkNvj7z_a9YHfsi9&m=QXdAsgAblWKAKBH5DVuTWutlYPER7sJMY-ZyASvPkfY&s=K-bMLOPfL3Cp4TJDg6Hodq68Y11D3KkJ6ssZnkz4Yhk&e=> > > > > David > > > > > > > > On Mon, Feb 11, 2019 at 7:43 AM Divittorio, Vincenzo < > [email protected]> wrote: > > Hi all, > > Iām using ATS as reverse proxy cache. > > It works for HTTP GET request with parameter in URL. > > My question is: can we add to the request key also some headers? > > > > This is the example: I have following request > > *URI*: http://myhost:myport/cxf/stubs/ats/username?name=Peter > <https://urldefense.proofpoint.com/v2/url?u=http-3A__10.1.65.73-3A18009_cxf_expo20_jaws_stubs_ats_username-3Fname-3DPeter&d=DwMFaQ&c=eIGjsITfXP_y-DLLX0uEHXJvU8nOHrUK8IrwNKOtkVU&r=nsV__I40yD7vHZxsO42FPFt3gWL4Bb_P7rT1RrUHG-kYWyc9mkNvj7z_a9YHfsi9&m=QXdAsgAblWKAKBH5DVuTWutlYPER7sJMY-ZyASvPkfY&s=D1a8k1j6vWitg8dAS0stN9clWe8RQw_y5pip8obMXpc&e=> > > *Headers*: > > - Surname: Green > - Timestamp: 1234567890 > - Content-type: application/json > > > > > > - *Response*: > { > > "output": "hello Peter Green" > > } > > > > Now, ATS works until when the URI is always the same. If I change in the > header Surname=Black, it goes to retrieve data from cache but in this case > is should be forwarded to backend because the surname is different. > > > > What I want to do it to accept as key of request (to verify if it exists > or not) also an header whitelist in order to say ok you have to retrieve > from cache not just if the URI is the same but if *uri* + *surname* > header value are the same. > > How I can include some headers to identify if the request (as a key) is an > entry of my cache? > > Thanks > > Regards > > > > > > > > > > > > > > > > > > > > > > > > > ------------------------------ > > > This message is for the designated recipient only and may contain > privileged, proprietary, or otherwise confidential information. If you have > received it in error, please notify the sender immediately and delete the > original. Any other use of the e-mail by you is prohibited. 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