Preserve mpo query parameter in auth flows
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Description

Background

(2) Persisting the mpo query parameter throughout the account creation and sign-in flows
We should do this! It would make developers and QTE's lives easier whilst they're testing their experiments.
I'm going to reach out to Gergo, who led the implementation of SUL3, about persisting parameters in these flows and will write up a ticket once I know more

Gergo pointed to the AuthPreserveQueryParams hook and an example in the Campaigns extension for how to use it.

Per the title, the mpo query parameter is preserved in auth flows using the AuthPreserveQueryParams hook mechanism

Details

Related Changes in Gerrit:

Subject	Repo	Branch	Lines +/-
Implement AuthPreserveQueryParams for Metrics Platform mpo param	mediawiki/extensions/MetricsPlatform	wmf/1.45.0-wmf.21	+29 -0
Implement AuthPreserveQueryParams for Metrics Platform mpo param	mediawiki/extensions/MetricsPlatform	master	+29 -0
Implement AuthPreserveQueryParams for Metrics Platform mpo param	mediawiki/extensions/WikimediaEvents	master	+109 -5

Customize query in gerrit

Related Objects

Mentioned In: rEMPLc58dc07cebaa: Implement AuthPreserveQueryParams for Metrics Platform mpo param
T399096: UserInfoCard: Number of "New articles" incorrect
rEMPLbe30dd850afb: Implement AuthPreserveQueryParams for Metrics Platform mpo param
T401308: Create A/B test experiment for leveling up notifications
Mentioned Here: T399096: UserInfoCard: Number of "New articles" incorrect

Event Timeline

phuedx created this task.Sep 15 2025, 4:30 PM

Restricted Application added a subscriber: Aklapper. · View Herald TranscriptSep 15 2025, 4:30 PM

phuedx updated the task description. (Show Details)Sep 15 2025, 6:18 PM

phuedx moved this task from Incoming to READY TO GROOM on the Test Kitchen board.

Sgs awarded a token.Sep 16 2025, 9:51 AM

Sgs subscribed.

Sgs mentioned this in T401308: Create A/B test experiment for leveling up notifications.Sep 16 2025, 10:26 AM

Michael subscribed.Sep 16 2025, 12:37 PM

dr0ptp4kt set the point value for this task to 2.Sep 30 2025, 3:58 PM

dr0ptp4kt moved this task from READY TO GROOM to Backlog on the Test Kitchen board.Sep 30 2025, 4:06 PM

Change #1193071 had a related patch set uploaded (by Kosta Harlan; author: Kosta Harlan):

[mediawiki/extensions/WikimediaEvents@master] Implement AuthPreserveQueryParams for Metrics Platform mpo param

https://gerrit.wikimedia.org/r/1193071

gerritbot added a project: Patch-For-Review.Oct 2 2025, 11:40 AM

kostajh claimed this task.Oct 2 2025, 1:21 PM

kostajh added a project: Product Safety and Integrity (Sprint Apfel Strudel (Sep 29 - Oct 17)).

Change #1193113 had a related patch set uploaded (by Kosta Harlan; author: Kosta Harlan):

[mediawiki/extensions/MetricsPlatform@master] Implement AuthPreserveQueryParams for Metrics Platform mpo param

https://gerrit.wikimedia.org/r/1193113

Change #1193071 abandoned by Kosta Harlan:

[mediawiki/extensions/WikimediaEvents@master] Implement AuthPreserveQueryParams for Metrics Platform mpo param

Reason:

See I579f168071cf03adac988f3863dcb56a2f40237c instead

https://gerrit.wikimedia.org/r/1193071

kostajh moved this task from Priority backlog to Needs review on the Product Safety and Integrity (Sprint Apfel Strudel (Sep 29 - Oct 17)) board.Oct 2 2025, 1:47 PM

Change #1193113 merged by jenkins-bot:

[mediawiki/extensions/MetricsPlatform@master] Implement AuthPreserveQueryParams for Metrics Platform mpo param

https://gerrit.wikimedia.org/r/1193113

kostajh mentioned this in rEMPLbe30dd850afb: Implement AuthPreserveQueryParams for Metrics Platform mpo param.Oct 2 2025, 4:09 PM

Maintenance_bot removed a project: Patch-For-Review.Oct 2 2025, 4:32 PM

ReleaseTaggerBot added a project: MW-1.45-notes (1.45.0-wmf.22; 2025-10-07).Oct 2 2025, 5:00 PM

Change #1193188 had a related patch set uploaded (by Kosta Harlan; author: Kosta Harlan):

[mediawiki/extensions/MetricsPlatform@wmf/1.45.0-wmf.21] Implement AuthPreserveQueryParams for Metrics Platform mpo param

https://gerrit.wikimedia.org/r/1193188

gerritbot added a project: Patch-For-Review.Oct 2 2025, 7:27 PM

phuedx moved this task from Backlog to Experiment Platform Sprint 13 on the Test Kitchen board.Oct 3 2025, 1:19 PM

phuedx edited projects, added Test Kitchen (Experiment Platform Sprint 13); removed Test Kitchen.

Change #1193188 merged by jenkins-bot:

[mediawiki/extensions/MetricsPlatform@wmf/1.45.0-wmf.21] Implement AuthPreserveQueryParams for Metrics Platform mpo param

https://gerrit.wikimedia.org/r/1193188

Mentioned in SAL (#wikimedia-operations) [2025-10-06T07:20:41Z] <kharlan@deploy2002> Started scap sync-world: Backport for [[gerrit:1193188|Implement AuthPreserveQueryParams for Metrics Platform mpo param (T404622)]], [[gerrit:1193700|UserInfoCard: Hide new articles count when likely to be inaccurate (T399096)]]

kostajh mentioned this in rEMPLc58dc07cebaa: Implement AuthPreserveQueryParams for Metrics Platform mpo param.Oct 6 2025, 7:24 AM

Mentioned in SAL (#wikimedia-operations) [2025-10-06T07:26:53Z] <kharlan@deploy2002> kharlan: Backport for [[gerrit:1193188|Implement AuthPreserveQueryParams for Metrics Platform mpo param (T404622)]], [[gerrit:1193700|UserInfoCard: Hide new articles count when likely to be inaccurate (T399096)]] synced to the testservers (see https://wikitech.wikimedia.org/wiki/Mwdebug). Changes can now be verified there.

Maintenance_bot removed a project: Patch-For-Review.Oct 6 2025, 7:31 AM

Mentioned in SAL (#wikimedia-operations) [2025-10-06T07:34:45Z] <kharlan@deploy2002> Finished scap sync-world: Backport for [[gerrit:1193188|Implement AuthPreserveQueryParams for Metrics Platform mpo param (T404622)]], [[gerrit:1193700|UserInfoCard: Hide new articles count when likely to be inaccurate (T399096)]] (duration: 14m 04s)