Registration Data Access Protocol (RDAP) Query Parameters for Result Sorting and Paging
draft-ietf-regext-rdap-sorting-and-paging-20
Registration Protocols Extensions M. Loffredo
Internet-Draft M. Martinelli
Intended status: Standards Track IIT-CNR/Registro.it
Expires: June 3, 2021 S. Hollenbeck
Verisign Labs
November 30, 2020
Registration Data Access Protocol (RDAP) Query Parameters for Result
Sorting and Paging
draft-ietf-regext-rdap-sorting-and-paging-20
Abstract
The Registration Data Access Protocol (RDAP) does not include core
functionality for clients to provide sorting and paging parameters
for control of large result sets. This omission can lead to
unpredictable server processing of queries and client processing of
responses. This unpredictability can be greatly reduced if clients
can provide servers with their preferences for managing large
responses. This document describes RDAP query extensions that allow
clients to specify their preferences for sorting and paging result
sets.
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
1.1. Conventions Used in This Document . . . . . . . . . . . . 4
2. RDAP Query Parameter Specification . . . . . . . . . . . . . 4
2.1. Sorting and Paging Metadata . . . . . . . . . . . . . . . 4
2.1.1. RDAP Conformance . . . . . . . . . . . . . . . . . . 6
2.2. "count" Parameter . . . . . . . . . . . . . . . . . . . . 6
2.3. "sort" Parameter . . . . . . . . . . . . . . . . . . . . 7
2.3.1. Sorting Properties Declaration . . . . . . . . . . . 8
2.3.2. Representing Sorting Links . . . . . . . . . . . . . 14
2.4. "cursor" Parameter . . . . . . . . . . . . . . . . . . . 16
2.4.1. Representing Paging Links . . . . . . . . . . . . . . 16
3. Negative Answers . . . . . . . . . . . . . . . . . . . . . . 17
4. Implementation Considerations . . . . . . . . . . . . . . . . 18
5. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 18
6. Implementation Status . . . . . . . . . . . . . . . . . . . . 19
6.1. IIT-CNR/Registro.it . . . . . . . . . . . . . . . . . . . 19
6.2. APNIC . . . . . . . . . . . . . . . . . . . . . . . . . . 19
7. Security Considerations . . . . . . . . . . . . . . . . . . . 20
8. References . . . . . . . . . . . . . . . . . . . . . . . . . 20
8.1. Normative References . . . . . . . . . . . . . . . . . . 20
8.2. Informative References . . . . . . . . . . . . . . . . . 22
Appendix A. JSONPath operators . . . . . . . . . . . . . . . . . 23
Appendix B. Approaches to Result Pagination . . . . . . . . . . 24
B.1. Specific Issues Raised by RDAP . . . . . . . . . . . . . 26
Appendix C. Additional Implementation Notes . . . . . . . . . . 26
C.1. Sorting . . . . . . . . . . . . . . . . . . . . . . . . . 27
C.2. Counting . . . . . . . . . . . . . . . . . . . . . . . . 27
C.3. Paging . . . . . . . . . . . . . . . . . . . . . . . . . 27
Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . . 28
Change Log . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 31
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