---------- Forwarded message ---------- From: Brion Vibber brion@pobox.com Date: Tue, May 3, 2011 at 8:19 PM Subject: API YAML output change heads-up To: Roan Kattouw roan@wikimedia.org

One of the MediaWiki API's output formats for some time has been YAML http://www.yaml.org -- while it doesn't seem to be widely used, it is there and I assume someone, somewhere is pulling data in this format. :)

The spyc library we've used to generate YAML output has had a number of bugs; recently, MediaWiki development trunk has resolved this by replacing spyc with the existing JSON output module: https://bugzilla.wikimedia.org/show_bug.cgi?id=28591

Since YAML is a superset of JSON, this should be a transparent change -- YAML clients should interpret the new output into the same data structures as before.

Be aware though that there will be differences where previously the formatting was affected by bugs in the YAML outputter, such as this example: http://www.mediawiki.org/wiki/Special:Code/MediaWiki/86302#c16513

If your code relied on particular structures in YAML output, it could fail with the corrected structures; please double-check that your code continues to work if switched over to format=json.

-- brion vibber (brion @ pobox.com / brion @ wikimedia.org)

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