The Constrained RESTful Application Language (CoRAL)
draft-ietf-core-coral-00

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Thing-to-Thing Research Group                                  K. Hartke
Internet-Draft                                                  Ericsson
Intended status: Standards Track                         August 29, 2019
Expires: March 1, 2020

          The Constrained RESTful Application Language (CoRAL)
                        draft-ietf-core-coral-00

Abstract

   The Constrained RESTful Application Language (CoRAL) defines a data
   model and interaction model as well as two specialized serialization
   formats for the description of typed connections between resources on
   the Web ("links"), possible operations on such resources ("forms"),
   as well as simple resource metadata.

Status of This Memo

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   This Internet-Draft will expire on March 1, 2020.

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Hartke                    Expires March 1, 2020                 [Page 1]
Internet-Draft  Constrained RESTful Application Language     August 2019

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
     1.1.  Notational Conventions  . . . . . . . . . . . . . . . . .   4
   2.  Data and Interaction Model  . . . . . . . . . . . . . . . . .   4
     2.1.  Browsing Context  . . . . . . . . . . . . . . . . . . . .   4
     2.2.  Documents . . . . . . . . . . . . . . . . . . . . . . . .   5
     2.3.  Links . . . . . . . . . . . . . . . . . . . . . . . . . .   5
     2.4.  Forms . . . . . . . . . . . . . . . . . . . . . . . . . .   6
       2.4.1.  Form Fields . . . . . . . . . . . . . . . . . . . . .   7
     2.5.  Embedded Representations  . . . . . . . . . . . . . . . .   7
     2.6.  Navigation  . . . . . . . . . . . . . . . . . . . . . . .   7
     2.7.  History Traversal . . . . . . . . . . . . . . . . . . . .   9
   3.  Binary Format . . . . . . . . . . . . . . . . . . . . . . . .   9
     3.1.  Data Structure  . . . . . . . . . . . . . . . . . . . . .  10
       3.1.1.  Documents . . . . . . . . . . . . . . . . . . . . . .  10
       3.1.2.  Links . . . . . . . . . . . . . . . . . . . . . . . .  10
       3.1.3.  Forms . . . . . . . . . . . . . . . . . . . . . . . .  11
       3.1.4.  Embedded Representations  . . . . . . . . . . . . . .  12
       3.1.5.  Directives  . . . . . . . . . . . . . . . . . . . . .  12
     3.2.  Dictionaries  . . . . . . . . . . . . . . . . . . . . . .  13
       3.2.1.  Dictionary References . . . . . . . . . . . . . . . .  13
       3.2.2.  Media Type Parameter  . . . . . . . . . . . . . . . .  14
   4.  Textual Format  . . . . . . . . . . . . . . . . . . . . . . .  14
     4.1.  Lexical Structure . . . . . . . . . . . . . . . . . . . .  15
       4.1.1.  Line Terminators  . . . . . . . . . . . . . . . . . .  15
       4.1.2.  White Space . . . . . . . . . . . . . . . . . . . . .  15
       4.1.3.  Comments  . . . . . . . . . . . . . . . . . . . . . .  15
       4.1.4.  Identifiers . . . . . . . . . . . . . . . . . . . . .  15
       4.1.5.  IRIs and IRI References . . . . . . . . . . . . . . .  16
       4.1.6.  Literals  . . . . . . . . . . . . . . . . . . . . . .  16
       4.1.7.  Punctuators . . . . . . . . . . . . . . . . . . . . .  20
     4.2.  Syntactic Structure . . . . . . . . . . . . . . . . . . .  20
       4.2.1.  Documents . . . . . . . . . . . . . . . . . . . . . .  20
       4.2.2.  Links . . . . . . . . . . . . . . . . . . . . . . . .  20
       4.2.3.  Forms . . . . . . . . . . . . . . . . . . . . . . . .  21
       4.2.4.  Embedded Representations  . . . . . . . . . . . . . .  22
       4.2.5.  Directives  . . . . . . . . . . . . . . . . . . . . .  23
   5.  Usage Considerations  . . . . . . . . . . . . . . . . . . . .  24
     5.1.  Specifying CoRAL-based Applications . . . . . . . . . . .  24