RESTCONF Extensions to Support List Pagination
draft-wwlh-netconf-list-pagination-rc-01
Document Type Active Internet-Draft (individual)
Authors Kent Watsen  , Qin Wu  , Olof Hagsand  , Hongwei Li 
Last updated 2020-11-02
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- Yang catalog entry for ietf-restconf-list-pagination@2015-01-30.yang
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NETCONF Working Group                                          K. Watsen
Internet-Draft                                            Watsen Network
Intended status: Standards Track                                   Q. Wu
Expires: May 6, 2021                                              Huawei
                                                              O. Hagsand
                                                                 Netgate
                                                                   H. Li
                                                                     HPE
                                                        November 2, 2020

             RESTCONF Extensions to Support List Pagination
                draft-wwlh-netconf-list-pagination-rc-01

Abstract

   In some circumstance, a server may contain many instances of a
   particular YANG list or leaf-list.  Retrieval of the entire list or
   leaf-list at once can be extremely inefficient.

   Pagination mechanisms are needed to allow a client to iterate through
   a large list, in a manner that is most efficient for the application.

   This document Updates RFC 8040 to declare "list" and "leaf-list" as
   resource targets for the RESTCONF operations such as GET, POST
   operations.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF).  Note that other groups may also distribute
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at https://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on May 6, 2021.

Watsen, et al.             Expires May 6, 2021                  [Page 1]
Internet-Draft         RESTCONF Pagination Support         November 2020

Copyright Notice

   Copyright (c) 2020 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
   Provisions Relating to IETF Documents
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   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
     1.1.  Terminology . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  RESTCONF Extensions . . . . . . . . . . . . . . . . . . . . .   4
     2.1.  RESTCONF Media Type . . . . . . . . . . . . . . . . . . .   4
     2.2.  New Resource Target . . . . . . . . . . . . . . . . . . .   4
   3.  YANG Module for List Pagination . . . . . . . . . . . . . . .   4
   4.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   6
     4.1.  The "IETF XML" Registry . . . . . . . . . . . . . . . . .   6
     4.2.  The "YANG Module Names" Registry  . . . . . . . . . . . .   6
     4.3.  The "Media Types" Registry  . . . . . . . . . . . . . . .   6
       4.3.1.  Media Type "application/yang-collection+xml"  . . . .   6
       4.3.2.  Media Type "application/yang-data+xml-list" . . . . .   8
   5.  Security Considerations . . . . . . . . . . . . . . . . . . .   9
     5.1.  The "ietf-restconf-list-pagination" YANG Module . . . . .   9
   6.  References  . . . . . . . . . . . . . . . . . . . . . . . . .   9
     6.1.  Normative References  . . . . . . . . . . . . . . . . . .   9
     6.2.  Informative References  . . . . . . . . . . . . . . . . .  10
   Appendix A.  Example YANG Module  . . . . . . . . . . . . . . . .  12
   Appendix B.  Example Data . . . . . . . . . . . . . . . . . . . .  12
   Appendix C.  Example Queries  . . . . . . . . . . . . . . . . . .  12
     C.1.  No Query Parameter  . . . . . . . . . . . . . . . . . . .  12
       C.1.1.  XML . . . . . . . . . . . . . . . . . . . . . . . . .  12
       C.1.2.  JSON  . . . . . . . . . . . . . . . . . . . . . . . .  13
     C.2.  Just the "count" Parameter  . . . . . . . . . . . . . . .  13
     C.3.  Just the "skip" Parameter . . . . . . . . . . . . . . . .  14
     C.4.  Just the "direction" Parameter  . . . . . . . . . . . . .  15
     C.5.  Just the "sort" Parameter . . . . . . . . . . . . . . . .  16
     C.6.  Combination of "where" + "count"  . . . . . . . . . . . .  17
     C.7.  Combination of "where" + "skip" + "count" . . . . . . . .  18
     C.8.  Combination of "where" + "sort" + "skip","count"  . . . .  19
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