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onthisday api is returning not found for all queries
Closed, ResolvedPublicBUG REPORT

Description

Steps to replicate the issue (include links if applicable):

What happens?:

What should have happened instead?:

  • Get content in response

Software version (on Special:Version page; skip for WMF-hosted wikis like Wikipedia):
WMF production

Other information (browser name/version, screenshots, etc.):
Reported in VRT ticket 2025032910011168

Documentation from: https://api.wikimedia.org/wiki/Feed_API/Reference/On_this_day

Event Timeline

Now this is failing with a new error:

Cannot GET /en.wikipedia.org/v1/aggregated/onthisday/all/3/28

Xaosflux changed the task status from Duplicate to Resolved.Apr 2 2025, 5:50 PM

reclosing, appears to be perhaps a lack of a undocumented feature from prior release

https://api.wikimedia.org/feed/v1/wikipedia/en/onthisday/all/3/28 (doesn't work)
https://api.wikimedia.org/feed/v1/wikipedia/en/onthisday/all/03/28 (DOES work)

documentation does say to use zero-padding