Re: [ietf-types] Registration of media type application/senml+json
Ned Freed <ned.freed@mrochek.com> Wed, 22 September 2010 01:31 UTC
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Date: Tue, 21 Sep 2010 18:15:43 -0700
From: Ned Freed <ned.freed@mrochek.com>
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Cc: ietf-types@ietf.org
Subject: Re: [ietf-types] Registration of media type application/senml+json
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> On 9/21/10 1:12 PM, Cullen Jennings wrote: > > Type name: application > > > > Subtype name: senml+json > I thought that the "+xml" convention was for the special class of media > types that represent XML MIME entities (RFC 3023). Is there a similar > class of "JSON MIME entities" that would justify "+json"? I don't see a > definition for such a class in RFC 4627 (not that I think it's a bad idea). The situation surrounding the use of +suffix constructs is a little unclear. RFC 3023 set up the rules for +xml fairly well (but see my earlier comments about possible coupling of these suffixes to parameters like charset). However, RFC 3023 said nothing about other +suffix constructs. And people definitely want to use the convention for other popular structuring syntaxes. And all RFC 4288 has to say is: More generally, "+suffix" constructs should be used with care, given the possibility of conflicts with future suffix definitions. In my role as IANA media tyypes reviewer, I have interpreted this as meaning that the +suffix construct should only be used when "suffix" actually identifies a well known structuring syntax. I have pushed back on other uses (I believe there was someone who wanted to register something like application/vnd.typename+vendorname, for instance). But beyond that I have allowed such registrations to go through. What I do not do, and wish I could do, is push back on registrations of types based on, say, JSON, saying they should be using +json. I don't believe the current rules allow me to do that. What I think is needed here is a revision/update to RFC 4288 to establish a registry of allowed +suffix constructs as well as expanded guidelines for their use. I also think pretty much any well defined structuring syntax should be allowed in the registry. (It's not like there's a shortage of them either.) Ned
- [ietf-types] Registration of media type applicati… Cullen Jennings
- Re: [ietf-types] Registration of media type appli… Bjoern Hoehrmann
- Re: [ietf-types] Registration of media type appli… Peter Saint-Andre
- Re: [ietf-types] Registration of media type appli… Bjoern Hoehrmann
- Re: [ietf-types] Registration of media type appli… Ned Freed
- Re: [ietf-types] Registration of media type appli… Peter Saint-Andre
- Re: [ietf-types] Registration of media type appli… Paul Libbrecht
- Re: [ietf-types] Registration of media type appli… Ned Freed
- Re: [ietf-types] Registration of media type appli… Keith Moore
- Re: [ietf-types] Registration of media type appli… Mario Salzer
- Re: [ietf-types] Registration of media type appli… Ned Freed
- Re: [ietf-types] Registration of media type appli… Cullen Jennings