GeoJSON Text Sequences
RFC 8142
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Type |
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RFC - Proposed Standard
(April 2017; No errata)
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Last updated |
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2017-04-27
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Replaces |
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draft-gillies-geojson-text-seq
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Stream |
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IETF
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plain text
pdf
html
bibtex
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Reviews |
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WG state
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Submitted to IESG for Publication
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Document shepherd |
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Martin Thomson
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Shepherd write-up |
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Show
(last changed 2016-09-19)
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| IESG |
IESG state |
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RFC 8142 (Proposed Standard)
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Consensus Boilerplate |
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Yes
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Telechat date |
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Responsible AD |
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Alissa Cooper
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Send notices to |
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"Martin Thomson" <martin.thomson@gmail.com>
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| IANA |
IANA review state |
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Version Changed - Review Needed
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IANA action state |
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RFC-Ed-Ack
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Internet Engineering Task Force (IETF) S. Gillies
Request for Comments: 8142 Mapbox
Category: Standards Track April 2017
ISSN: 2070-1721
GeoJSON Text Sequences
Abstract
This document describes the GeoJSON text sequence format and
"application/geo+json-seq" media type. This format is based on
JavaScript Object Notation (JSON) text sequences and GeoJSON, and it
makes arbitrarily large geographic datasets incrementally parseable
without restricting the form of GeoJSON texts within a sequence.
Status of This Memo
This is an Internet Standards Track document.
This document is a product of the Internet Engineering Task Force
(IETF). It represents the consensus of the IETF community. It has
received public review and has been approved for publication by the
Internet Engineering Steering Group (IESG). Further information on
Internet Standards is available in Section 2 of RFC 7841.
Information about the current status of this document, any errata,
and how to provide feedback on it may be obtained at
http://www.rfc-editor.org/info/rfc8142.
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.
Gillies Standards Track [Page 1]
RFC 8142 GeoJSON Text Sequences April 2017
Table of Contents
1. Introduction ....................................................2
1.1. Requirements Language ......................................2
2. GeoJSON Text Sequence Format ....................................2
3. Security Considerations .........................................3
4. Interoperability Considerations .................................3
5. IANA Considerations .............................................3
6. References ......................................................4
6.1. Normative References .......................................4
6.2. Informative References .....................................5
Author's Address ...................................................5
1. Introduction
Arbitrarily large sequences of values pose a problem for JavaScript
Object Notation (JSON) [RFC7159] that is well explained in the
motivation for JSON text sequences [RFC7464]. The GeoJSON format
[RFC7946] faces the same kind of problem. Geographic datasets often
run to the tens of thousands or millions of features. The problem is
often amplified by the presence of large arrays of coordinates for
each of the features.
This document describes a specialization of JSON text sequences. A
GeoJSON text sequence is a document of arbitrarily large size
containing one or more GeoJSON objects (e.g., multiple GeoJSON texts
that can be produced and parsed incrementally) and not just a single
GeoJSON FeatureCollection, Feature, or Geometry.
1.1. Requirements Language
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and
"OPTIONAL" in this document are to be interpreted as described in
[RFC2119].
2. GeoJSON Text Sequence Format
Defined in prose similar to the description of the JSON text sequence
in [RFC7464], a GeoJSON text sequence is any number of GeoJSON
[RFC7946] texts, each encoded in UTF-8 [RFC3629], preceded by one
ASCII [RFC20] record separator (RS) character, and followed by a line
feed (LF).
The GeoJSON text sequence format conforms to all the rules of
[RFC7464] and adds the following constraint: each JSON text MUST
contain a single GeoJSON object as defined in [RFC7946].
Gillies Standards Track [Page 2]
RFC 8142 GeoJSON Text Sequences April 2017
Heterogeneous sequences containing a mix of GeoJSON Geometry,
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