Difference between revisions of "JSONp"

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=== YouTube ===
 
=== YouTube ===
  
* '''YouTube video widget (via JSONp): http://bcmoney-mobiletv.com/metaweb/youtube/'''
+
* '''YouTube video widget (via JSONp): http://bcmoney-mobiletv.com/youtube/'''
 
* YouTube AJAX API integration (video/playlist search): http://www.yvoschaap.com/youtube.html
 
* YouTube AJAX API integration (video/playlist search): http://www.yvoschaap.com/youtube.html
 
* Developer's Guide -- JSON-C / JavaScript: http://code.google.com/apis/youtube/2.0/developers_guide_jsonc.html
 
* Developer's Guide -- JSON-C / JavaScript: http://code.google.com/apis/youtube/2.0/developers_guide_jsonc.html
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=== Last.fm ===
 
=== Last.fm ===
  
* '''Last.FM audio widget (via JSONp): http://bcmoney-mobiletv.com/metaweb/lastfm/'''
+
* '''Last.FM audio widget (via JSONp): http://bcmoney-mobiletv.com/widgets/lastfm/'''
 
* Last.fm Web Services: http://www.last.fm/api/show?service=286
 
* Last.fm Web Services: http://www.last.fm/api/show?service=286
 
* Last.fm JSON/JSONp Web Service Extensions: http://lastfm-api-ext.appspot.com/docs/
 
* Last.fm JSON/JSONp Web Service Extensions: http://lastfm-api-ext.appspot.com/docs/

Revision as of 07:58, 21 April 2011

JSON with Padding (commonly abbreviated JSONP) is a JSON extension wherein a prefix is specified as an input argument of the call itself. This padding prefix is typically the name of a callback function, but may also be a variable assignment, an if statement, or any other Javascript statement prefix. The original proposition appears to have been made in the MacPython blog in 2005 [17] and is now used by many Web 2.0 applications such as Dojo Toolkit Applications, Google Toolkit Applications[18] and Web Services. Further extensions of this protocol have been proposed by considering additional input arguments as, for example, is the case of JSONPP[1] supported by S3DB web services.

Because JSONP makes use of script tags, calls are essentially open to the world. For that reason, JSONP may be inappropriate to carry sensitive data.[20]

Including script tags from remote sites allows the remote sites to inject any content into a website. If the remote sites have vulnerabilities that allow JavaScript injection, the original site can also be affected.[2]


Examples

BC$ MobileTV

oEmbed - JSON endpoint:

http://bcmoney-mobiletv.com/1744/oembed/json

oEmbed - special JSONp endpoint (direct):

http://bcmoney-mobiletv.com/api/oembed/oembed_writer.php?v=1744&format=json&callback=displayResults


YouTube


Flickr


Last.fm


Twitter


Facebook


Yahoo

[7][8][9][10]


Google


Wikipedia


Tools

  • JSONPify - a simple way to access feeds and web services from a client based web application: http://jsonpify.com/

Tutorials


External Links


References

  1. Almeida, Jonas (June 11, 2008). "JSON, JSONP, JSONPP?". S3DB: http://sites.google.com/a/s3db.org/s3db/documentation/mis/json-jsonp-jsonpp. Retrieved April 26, 2009.
  2. wikipedia: JSONP#JSONP
  3. Facebook Connect JavaScript SDK: http://github.com/facebook/connect-js
  4. Facebook JavaScript Client Library: http://wiki.developers.facebook.com/index.php/JavaScript_Client_Library
  5. Old JavaScript SDK: http://developers.facebook.com/docs/reference/oldjavascript/
  6. Building a Better Photo Uploader (with JSONp): http://www.facebook.com/note.php?note_id=178492968919
  7. Cross-domain communications with JSONP, Part 1 -- Combine JSONP and jQuery to quickly build powerful mashups: http://www.ibm.com/developerworks/web/library/wa-aj-jsonp1/index.html
  8. Cross-domain communications with JSONP, Part 2 -- Building mashups with JSONP, jQuery, and Yahoo! Query Language: http://www.ibm.com/developerworks/web/library/wa-aj-jsonp2/index.html
  9. YQL and JSONP-X (aka. json-p-x, jsonpx, json-px): http://paul.donnelly.org/2009/07/08/yql-and-jsonp-x/
  10. Mashups with JSONP, jQuery and YQL: http://projects.ischool.washington.edu/tabrooks/343INFOAutumn09/JSONP/jsonpJqueryYQL.htm


See Also

JSON | AJAX | jQuery | JavaScript | XSS