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Re: [Ace] Embedded Content Types

Jim Schaad <ietf@augustcellars.com> Fri, 22 February 2019 17:14 UTC

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From: Jim Schaad <ietf@augustcellars.com>
To: 'Michael Richardson' <mcr+ietf@sandelman.ca>, 'Carsten Bormann' <cabo@tzi.org>
CC: "'Panos Kampanakis (pkampana)'" <pkampana@cisco.com>, 'ace' <ace@ietf.org>, 'Klaus Hartke' <hartke@projectcool.de>, draft-ietf-ace-coap-est@ietf.org
References: <02a201d4c945$eb10a510$c131ef30$@augustcellars.com> <17e617f1090e451c8b17f6550c2e213a@XCH-ALN-010.cisco.com> <CCD28BCC-16AA-492B-8E14-DAE9F2CF2E3C@tzi.org> <38fa1ec646974a329c286279b3fa9ff0@XCH-ALN-010.cisco.com> <032f01d4ca2f$ff19c6a0$fd4d53e0$@augustcellars.com> <b4bb6e5f3c7c47ffa040389f000f027f@XCH-ALN-010.cisco.com> <033201d4ca35$23f58f40$6be0adc0$@augustcellars.com> <6F0FAFC5-947C-4B8E-B83F-82D68750A80A@tzi.org> <29788.1550853979@localhost>
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Subject: Re: [Ace] Embedded Content Types
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> -----Original Message-----
> From: Michael Richardson <mcr+ietf@sandelman.ca>
> Sent: Friday, February 22, 2019 8:46 AM
> To: Carsten Bormann <cabo@tzi.org>
> Cc: Jim Schaad <ietf@augustcellars.com>; Panos Kampanakis (pkampana)
> <pkampana@cisco.com>; ace <ace@ietf.org>; Klaus Hartke
> <hartke@projectcool.de>; draft-ietf-ace-coap-est@ietf.org
> Subject: Re: [Ace] Embedded Content Types
> 
> 
> Carsten Bormann <cabo@tzi.org> wrote:
>     >> I am thinking of two different URLs, that is not do the difference
by
>     >> a query parameter but by changing the URI.
> 
>     > Note that the query parameters are part of the URI, so fundamentally
>     > there is no difference between putting the info there or in the path
>     > part of the URI.
> 
> Really? Aren't there caching differences?
> (Not that these things should ever be cached)

Not in CoAP, for CoAP options are part of the cache key.  I don't know for
sure about HTTP but normally it says only GETs and use the URI.  That would
say that options are part of the cache key.

Jim

> 
> --
> Michael Richardson <mcr+IETF@sandelman.ca>, Sandelman Software Works
> -= IPv6 IoT consulting =-
> 
>

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