Preview Sites: Delete all preview sites using `/delete/all` API endpoint by gavande1 · Pull Request #1950 · Automattic/studio

gavande1 · 2025-10-28T14:40:42Z

Related issues

Fixes STU-851

Proposed Changes

Add a new mutation endpoint for deleting all preview sites for the user
Use the API endpoint to delete preview sites in the preference modal

Testing Instructions

Apply the patch 194679-ghe-Automattic/wpcom on your sandbox.
Run Studio using this branch.
Start the application with:
```
npm start
```
Open Developer Tools and keep the Network tab open.
Navigate to the Preferences tab in Studio and log in (if not already).
Go to the Usage tab and click Delete all preview sites.
Verify that a request to
```
/jurassic-ninja/delete/all/delete/all
```
was sent and returned a successful response
Confirm that the usage numbers are reset.
Close and reopen the Usage tab.
Ensure the updated usage numbers are still reflected.

Open the following file on your system:

~/Library/Application Support/Studio/appdata-v1.json

Verify that the snapshots array is cleared and shows as [].

Pre-merge Checklist

Have you checked for TypeScript, React or other console errors?

github-actions · 2025-10-28T15:05:09Z

📊 Performance Test Results

Comparing 040a48c vs trunk

site-editor

Metric	trunk	`040a48c`	Diff	Change
load	7605.00 ms	9213.00 ms	+1608.00 ms	🔴 21.1%

site-startup

Metric	trunk	`040a48c`	Diff	Change
siteCreation	13030.00 ms	11039.00 ms	-1991.00 ms	🟢 -15.3%
siteStartup	3962.00 ms	3947.00 ms	-15.00 ms	🟢 -0.4%

Results are median values from multiple test runs.

Legend: 🟢 Improvement (faster) | 🔴 Regression (slower) | ⚪ No change

wojtekn · 2025-10-29T08:51:30Z

I was wondering if it will be clear to the user that it removes all preview sites on the account, and not only those created from the given Studio instance, but it seems that the dialog already makes it clear:

All preview sites that exist for your WordPress.com account, along with all posts, pages, comments, and media, will be lost.

katinthehatsite · 2025-10-29T09:02:26Z

 	};
 }
+
+export function withOfflineCheckMutation< TResult, TArg, TBaseQuery extends BaseQueryFn >(


We already disable the button to delete preview sites when the user isOffline, so I am wondering if we need this?

That’s a great point. I agree it’s not needed right now, but I added it just in case we need the offline check elsewhere while using another API. No strong opinion here, though I would slightly prefer keeping it since withOfflineCheckMutation could be useful later.

Okay, we can keep it then 👍 If it is not something that we use often, we can clean this up later.

gavande1 · 2025-10-29T09:32:35Z

I was wondering if it will be clear to the user that it removes all preview sites on the account, and not only those created from the given Studio instance, but it seems that the dialog already makes it clear:

This is what I thought as well. That's why I didn't alter the message.

ivan-ottinger

The changes look good and work correctly. The new endpoint is being used:

and the logic clears up the snapshots in the appdata-v1.json as well:

One thing I noticed is that the Delete all preview sites button does not get disabled when there are no preview sites left:

gavande1 · 2025-10-29T10:55:26Z

One thing I noticed is that the Delete all preview sites button does not get disabled when there are no preview sites left:

@ivan-ottinger, Great question. This is the intended behavior for cases where two separate instances of Studio are out of sync. While disabling the button might seem reasonable, there are several scenarios where keeping it enabled is actually helpful.

ivan-ottinger · 2025-10-29T11:26:18Z

@ivan-ottinger, Great question. This is the intended behavior for cases where two separate instances of Studio are out of sync. While disabling the button might seem reasonable, there are several scenarios where keeping it enabled is actually helpful.

I see. Are you referring to a case where the snapshots are still recorded on some other app instance? Is the intention to clear that leftover snapshosts array with the button?

wojtekn · 2025-10-29T12:50:52Z

I see. Are you referring to a case where the snapshots are still recorded on some other app instance? Is the intention to clear that leftover snapshosts array with the button?

This is the goal, with the new implementation, the button should always be available to let the user clean preview sites from their account.

ivan-ottinger · 2025-10-29T13:16:39Z

This is the goal, with the new implementation, the button should always be available to let the user clean preview sites from their account.

Makes sense. 👍🏼

katinthehatsite · 2025-10-30T09:06:48Z

This is the goal, with the new implementation, the button should always be available to let the user clean preview sites from their account.

I am finding this a bit of a strange UI but I guess there are not many ways around it.

katinthehatsite

👍

ivan-ottinger · 2025-10-30T09:18:50Z

I am finding this a bit of a strange UI but I guess there are not many ways around it.

Yeah. likewise. I thought about it yesterday and maybe I am missing something, but:

Cannot we do the following?

disable the Delete all preview sites button when there are no preview site linked to the user's account
let the Clear button on the Previews tab remove those already-deleted sites from appdata-v1.json on another Studio instance

The Delete all preview sites button would:

trigger the endpoint to clear all preview sites on the server
clear preview sites from appdata-v1.json on the local Studio instance

The Clear button on the Previews tab would only clear the leftover preview sites from the appdata-v1.json .

gavande1 · 2025-10-30T10:25:24Z

Cannot we do the following?

disable the Delete all preview sites button when there are no preview site linked to the user's account

let the Clear button on the Previews tab remove those already-deleted sites from appdata-v1.json on another Studio instance

Since we are already querying usage on the component. I think it makes sense to do a quick check on the user's account. I will update the code to disable the button when there are no preview sites on the user's account. cc @wojtekn

The remaining suggested behaviours have already been implemented in #1950.

gavande1 · 2025-10-30T11:42:38Z

@ivan-ottinger Thanks for the feedback so far. I have addressed your concerns in e45a445. Could you review it again?

ivan-ottinger · 2025-10-30T12:00:35Z

@ivan-ottinger Thanks for the feedback so far. I have addressed your concerns in e45a445. Could you review it again?

Nice! Thank you for the updates. The changes look good and I can see that if there are no remote preview sites, the button gets disabled:

gavande1 force-pushed the update/delete-all-sites-button-behavior branch from 15c97d2 to 02173f7 Compare October 29, 2025 05:46

gavande1 self-assigned this Oct 29, 2025

gavande1 marked this pull request as ready for review October 29, 2025 05:55

gavande1 requested a review from a team October 29, 2025 06:12

gavande1 changed the title ~~Preview Sites: Change the behavior of the “Delete all preview sites” button to delete all existing sites~~ Oct 29, 2025

gavande1 changed the title ~~Preview Sites: delete all preview sites using /delete/all API endpoint~~ Oct 29, 2025

katinthehatsite reviewed Oct 29, 2025

View reviewed changes

gavande1 added 8 commits October 29, 2025 15:04

Add offline check for react mutation

d147a2d

Add new mutation for deleting all preview sites

d4a62a8

Use newly created mutation for deleting user's all previews sites

36cf250

Refactoring error handling

95ed88d

Add snapshots to allowed list

37d06ff

Clear app data on successful request

d412576

Do not clear current state

7e8f06c

Fix linting issues

1c10b07

gavande1 force-pushed the update/delete-all-sites-button-behavior branch from 02173f7 to 1c10b07 Compare October 29, 2025 09:34

ivan-ottinger reviewed Oct 29, 2025

View reviewed changes

gavande1 requested review from ivan-ottinger and katinthehatsite October 30, 2025 08:43

ivan-ottinger approved these changes Oct 30, 2025

View reviewed changes

katinthehatsite approved these changes Oct 30, 2025

View reviewed changes

Disable delete all button when user has no snapshots

e45a445

Fix linting issue

e0ba72b

gavande1 merged commit a0e49fc into trunk Oct 30, 2025
12 checks passed

gavande1 deleted the update/delete-all-sites-button-behavior branch October 30, 2025 12:55

This was referenced Mar 25, 2026

Fix regressions around deleting preview sites #2903

Merged

Refactor and clean up site deletion logic in app #2915

Merged

Provide feedback

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Preview Sites: Delete all preview sites using `/delete/all` API endpoint - #1950

Preview Sites: Delete all preview sites using `/delete/all` API endpoint#1950
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Related issues

Proposed Changes

Testing Instructions

Pre-merge Checklist

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📊 Performance Test Results

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