Linkset: Media Types and a Link Relation Type for Link Sets
draft-wilde-linkset-05

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Network Working Group                                           E. Wilde
Internet-Draft
Intended status: Informational                          H. Van de Sompel
Expires: July 3, 2020              Data Archiving and Networked Services
                                                       December 31, 2019

      Linkset: Media Types and a Link Relation Type for Link Sets
                         draft-wilde-linkset-05

Abstract

   This specification defines two media types for representing sets of
   links and a link relation type for referring to sets of links.  The
   media types can be used to represents links in a standalone fashion,
   in one case in the native format as used in the HTTP "Link" header
   field, and in the other case in a JSON-based format.  The link
   relation type can be used to point at a resource that provides a set
   of links.

Note to Readers

   Please discuss this draft on the ART mailing list
   (<https://www.ietf.org/mailman/listinfo/art>).

   Online access to all versions and files is available on GitHub
   (<https://github.com/dret/I-D/tree/master/linkset>).

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   This Internet-Draft will expire on July 3, 2020.

Wilde & Van de Sompel     Expires July 3, 2020                  [Page 1]
Internet-Draft                   Linkset                   December 2019

Copyright Notice

   Copyright (c) 2019 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  Scenarios . . . . . . . . . . . . . . . . . . . . . . . . . .   3
     3.1.  Third-Party Links . . . . . . . . . . . . . . . . . . . .   3
     3.2.  Challenges Writing to HTTP Link Header Field  . . . . . .   4
     3.3.  Large Number of Links . . . . . . . . . . . . . . . . . .   4
   4.  Document Formats for Sets of Links  . . . . . . . . . . . . .   5
     4.1.  HTTP Link Document Format: application/linkset  . . . . .   5
     4.2.  JSON Document Format: application/linkset+json  . . . . .   6
       4.2.1.  Set of Links  . . . . . . . . . . . . . . . . . . . .   6
       4.2.2.  Link Context Object . . . . . . . . . . . . . . . . .   7
       4.2.3.  Link Target Object  . . . . . . . . . . . . . . . . .   7
       4.2.4.  Link Target Attributes  . . . . . . . . . . . . . . .   9
   5.  The "linkset" Relation Type for Linking to a Set of Links . .  13
   6.  Examples  . . . . . . . . . . . . . . . . . . . . . . . . . .  14
     6.1.  Set of Links Provided By Value as application/linkset . .  14
     6.2.  Set of Links Provided By Reference as
           application/linkset+json  . . . . . . . . . . . . . . . .  15
   7.  Implementation Status . . . . . . . . . . . . . . . . . . . .  18
     7.1.  Open Journal Systems (OJS)  . . . . . . . . . . . . . . .  18
   8.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  18
     8.1.  Link Relation Type: linkset . . . . . . . . . . . . . . .  18
     8.2.  Media Type: application/linkset . . . . . . . . . . . . .  19
       8.2.1.  IANA Considerations . . . . . . . . . . . . . . . . .  19
     8.3.  Media Type: application/linkset+json  . . . . . . . . . .  20
   9.  Security Considerations . . . . . . . . . . . . . . . . . . .  21
   10. Normative References  . . . . . . . . . . . . . . . . . . . .  21
   Appendix A.  Acknowledgements . . . . . . . . . . . . . . . . . .  22
   Appendix B.  JSON-LD Context  . . . . . . . . . . . . . . . . . .  22
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  23

Wilde & Van de Sompel     Expires July 3, 2020                  [Page 2]
Internet-Draft                   Linkset                   December 2019