JSON Schema Validation: A Vocabulary for Structural Validation of JSON
draft-wright-json-schema-validation-01
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2017-04-16
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Internet Engineering Task Force A. Wright, Ed.
Internet-Draft
Intended status: Informational G. Luff
Expires: October 17, 2017
H. Andrews, Ed.
Cloudflare, Inc.
April 15, 2017
JSON Schema Validation: A Vocabulary for Structural Validation of JSON
draft-wright-json-schema-validation-01
Abstract
JSON Schema (application/schema+json) has several purposes, one of
which is JSON instance validation. This document specifies a
vocabulary for JSON Schema to describe the meaning of JSON documents,
provide hints for user interfaces working with JSON data, and to make
assertions about what a valid document must look like.
Note to Readers
The issues list for this draft can be found at <https://github.com/
json-schema-org/json-schema-spec/issues>.
For additional information, see <http://json-schema.org/>.
To provide feedback, use this issue tracker, the communication
methods listed on the homepage, or email the document editors.
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 http://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 October 17, 2017.
Wright, et al. Expires October 17, 2017 [Page 1]
Internet-Draft JSON Schema Validation April 2017
Copyright Notice
Copyright (c) 2017 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
(http://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents
carefully, as they describe your rights and restrictions with respect
to this document. Code Components extracted from this document must
include Simplified BSD License text as described in Section 4.e of
the Trust Legal Provisions and are provided without warranty as
described in the Simplified BSD License.
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3
2. Conventions and Terminology . . . . . . . . . . . . . . . . . 4
3. Interoperability considerations . . . . . . . . . . . . . . . 4
3.1. Validation of string instances . . . . . . . . . . . . . 4
3.2. Validation of numeric instances . . . . . . . . . . . . . 4
3.3. Regular expressions . . . . . . . . . . . . . . . . . . . 4
4. General validation considerations . . . . . . . . . . . . . . 5
4.1. Keywords and instance primitive types . . . . . . . . . . 5
4.2. Validation of primitive types and child values . . . . . 5
4.3. Constraints and missing keywords . . . . . . . . . . . . 6
4.4. Keyword independence . . . . . . . . . . . . . . . . . . 6
5. Meta-schema . . . . . . . . . . . . . . . . . . . . . . . . . 6
6. Validation keywords . . . . . . . . . . . . . . . . . . . . . 6
6.1. multipleOf . . . . . . . . . . . . . . . . . . . . . . . 6
6.2. maximum . . . . . . . . . . . . . . . . . . . . . . . . . 6
6.3. exclusiveMaximum . . . . . . . . . . . . . . . . . . . . 7
6.4. minimum . . . . . . . . . . . . . . . . . . . . . . . . . 7
6.5. exclusiveMinimum . . . . . . . . . . . . . . . . . . . . 7
6.6. maxLength . . . . . . . . . . . . . . . . . . . . . . . . 7
6.7. minLength . . . . . . . . . . . . . . . . . . . . . . . . 7
6.8. pattern . . . . . . . . . . . . . . . . . . . . . . . . . 8
6.9. items . . . . . . . . . . . . . . . . . . . . . . . . . . 8
6.10. additionalItems . . . . . . . . . . . . . . . . . . . . . 8
6.11. maxItems . . . . . . . . . . . . . . . . . . . . . . . . 9
6.12. minItems . . . . . . . . . . . . . . . . . . . . . . . . 9
6.13. uniqueItems . . . . . . . . . . . . . . . . . . . . . . . 9
6.14. contains . . . . . . . . . . . . . . . . . . . . . . . . 9
6.15. maxProperties . . . . . . . . . . . . . . . . . . . . . . 9
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