Open Publication Distribution System: Difference between revisions

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Latest revision as of 02:51, 23 June 2025

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{{Short description|Web syndication format}}

{{Update|date=June 2025}}

{{Infobox file format

| name = Open Publication Distribution System

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| extendedfrom = [[Atom (standard)|Atom]]

| extendedto =

| freeopen = Yes

| url = {{URL|opds.io}} }}

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==History==

OPDS is based on the initial work done by [[Lexcycle]], the company behind [[Lexcycle Stanza|Stanza]],<ref>{{cite mailing list |url=http://groups.google.com/d/topic/openpub/Vr8FI7gIKHg/discussion |title=Project Goals |date=April 9, 2009 |accessdateaccess-date=May 5, 2013 |mailing-list=Open Publication Distribution System |last=Fahlgren |first=Keith |via=[[Google Groups]] }}</ref> an [[E-Book|eBook reader application]] for [[iOS]].{{citation needed|date=December 2017}} All revisions of the specification were produced by an informal group organized around an open mailing list.<ref>{{cite web |url=http://groups.google.com/group/openpub |title=Open Publication Distribution System |website=Google Groups |access-date=May 5, 2013 }}</ref>

{| class="wikitable sortable" align="left"

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| {{Version |co |1.1 |sortKey=1.1}}<ref>{{cite web |url=https://specs.opds.io/opds-1.1.html |title=OPDS Catalog 1.1 |access-date=May 5, 2013 }}</ref> || {{dts|2011|06|27}}

|-

| {{Version |c |1.2 |sortkeysortKey=1.2}}<ref>{{cite web |url=https://specs.opds.io/opds-1.2 |title=OPDS Catalog 1.2 |access-date=November 11, 2018 }}</ref> || {{dts|2018|11|11}}

|-

| {{Version |p |2.0 |sortkeysortKey=2.0}}<ref>{{cite web |url=https://drafts.opds.io/opds-2.0 |title=OPDS Catalog 2.0 |access-date=November 11, 2018 }}</ref> || {{dunno}}

|- class="sortbottom"

| colspan=2 | {{Version |l |show=001101}}

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==Example of OPDS 1.1 content==

An example of an acquisition feed in OPDS:

<sourcesyntaxhighlight lang="xml"><?xml version="1.0" encoding="UTF-8"?>

<feed xmlns="http://www.w3.org/2005/Atom"

xmlns:dc="http://purl.org/dc/terms/"

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</link>

</entry>

</feed></sourcesyntaxhighlight>

{{Clear}}

==OPDS catalogs==

Dozens of OPDS catalogs are available online, and in many different languages.<ref>{{cite web |url=http://wiki.mobileread.com/wiki/OPDS#Online_OPDS_Catalogs |title=Online OPDS Catalogs |publisher=MobileRead Wiki|access-date= |accessdate=2011-05-19}}</ref>

Many users of OPDS also create their own OPDS catalog, as a way to access their ebooks from any device.<ref>{{cite web |url=http://wiki.mobileread.com/wiki/OPDS#OPDS_Catalog_Generation |title=OPDS Catalog Generation |publisher=MobileRead Wiki|access-date= |accessdate=2011-05-19}}</ref>

Developers implementing an OPDS catalog usually use the [[Feedbooks]] catalog<ref>{{cite web |url=http://www.feedbooks.com/catalog.atom |title=Feedbooks OPDS Catalog |publisher=Feedbooks |access-date= |accessdate=2011-05-19}}</ref> as an example of a fully featured catalog. An OPDS validator is also available to test OPDS feeds.<ref>{{cite web |url=https://opds-validator.appspot.com/ |title=OPDS Validator |accessdateaccess-date=2011-05-19}}</ref>

{{Clear}}

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'''Other resources'''

*[http://www.feedbooks.com/api/primer OPDS Primer]

*[http://wiki.mobileread.com/wiki/OPDS MobileRead Wiki - OPDS]

*[http://opdshome.uo1.net/ OPDS Meta-Catalog]

*[https://github.com/search?q=OPDS&type=Repositories&s=stars OPDS projects on GitHub]