This PR updates the limit validation for constraint numbers on a single
strategy. In cases where you're already above the limit, it allows you
to still update the strategy as long as you don't add any **new**
constraints (that is: the number of constraints doesn't increase).
A discussion point: I've only tested this with unit tests of the method
directly. I haven't tested that the right parameters are passed in from
calling functions. The main reason being that that would involve
updating the fake strategy and feature stores to sync their flag lists
(or just checking that the thrown error isn't a limit exceeded error),
because right now the fake strategy store throws an error when it
doesn't find the flag I want to update.
https://linear.app/unleash/issue/2-2453/validate-patched-data-against-schema
This adds schema validation to patched data, fixing potential issues of
patching data to an invalid state.
This can be easily reproduced by patching a strategy constraints to be
an object (invalid), instead of an array (valid):
```sh
curl -X 'PATCH' \
'http://localhost:4242/api/admin/projects/default/features/test/environments/development/strategies/8cb3fec6-c40a-45f7-8be0-138c5aaa5263' \
-H 'accept: application/json' \
-H 'Content-Type: application/json' \
-d '[
{
"path": "/constraints",
"op": "replace",
"from": "/constraints",
"value": {}
}
]'
```
Unleash will accept this because there's no validation that the patched
data actually looks like a proper strategy, and we'll start seeing
Unleash errors due to the invalid state.
This PR adapts some of our existing logic in the way we handle
validation errors to support any dynamic object. This way we can perform
schema validation with any object and still get the benefits of our
existing validation error handling.
This PR also takes the liberty to expose the full instancePath as
propertyName, instead of only the path's last section. We believe this
has more upsides than downsides, especially now that we support the
validation of any type of object.

This PR adds prometheus metrics for when users attempt to exceed the
limits for a given resource.
The implementation sets up a second function exported from the
ExceedsLimitError file that records metrics and then throws the error.
This could also be a static method on the class, but I'm not sure that'd
be better.
This PR adds a feature flag limit to Unleash. It's set up to be
overridden in Enterprise, where we turn the limit up.
I've also fixed a couple bugs in the fake feature flag store.
This PR adds metrics tracking for:
- "maxConstraintValues": the highest number of constraint values that
are in use
- "maxConstraintsPerStrategy": the highest number of constraints used on
a strategy
It updates the existing feature strategy read model that returns max
metrics for other strategy-related things.
It also moves one test into a more fitting describe block.
This PR is part of #4380 - Remove legacy `/api/feature` endpoint.
## About the changes
### Frontend
- Removes the useFeatures hook
- Removes the part of StrategyView that displays features using this
strategy (not been working since v4.4)
- Removes 2 unused features entries from routes
### Backend
- Removes the /api/admin/features endpoint
- Moves a couple of non-feature related tests (auth etc) to use
/admin/projects endpoint instead
- Removes a test that was directly related to the removed endpoint
- Moves a couple of tests to the projects/features endpoint
- Reworks some tests to fetch features from projects features endpoint
and strategies from project strategies
I've tried to use/add the audit info to all events I could see/find.
This makes this PR necessarily huge, because we do store quite a few
events.
I realise it might not be complete yet, but tests
run green, and I think we now have a pattern to follow for other events.
## About the changes
- Removes the feature flag for the created_by migrations.
- Adds a configuration option in IServerOption for
`ENABLE_SCHEDULED_CREATED_BY_MIGRATION` that defaults to `false`
- the new configuration option when set on startup enables scheduling of
the two created_by migration services (features+events)
- Removes the dependency on flag provider in EventStore as it's no
longer needed
- Adds a brief description of the new configuration option in
`configuring-unleash.md`
- Sets the events created_by migration interval to 15 minutes, up from
2.
---------
Co-authored-by: Gastón Fournier <gaston@getunleash.io>
Via the API you can currently create gradualRollout strategies without
any parameters set, when visiting the UI afterwards, you can edit this,
because the UI reads the parameter list from the database and sees that
some parameters are required, and refuses to accept the data. This PR
adds defaults for gradualRollout strategies created from the API, making
sure gradual rollout strategies always have `rollout`, `groupId` and
`stickiness` set.
Now frontend API requests will be counted separately under
getAllByfrontend. We are already tracking new FE db calls, so we can
build grafana dashboard.
This column has not been used for 1.5 years and was replace by
**archived_at** column and people still get confused of why this is not
working as name suggests. Removing this column to remove technical debt.
## About the changes
the created_by_user_id data migration from resolving events.created_by
(for both events and features) now emits events on how many rows were
updated.
Adds listeners for these events that records these metrics with
prometheus

We were sending `user.id` to the service, but if an admin token is used,
there is no `user.id.` Instead, there is
`user.internalAdminTokenUserId`. so we need to use the special method
`extractUserIdFromUser`.
This PR adds this implementation, and now the service correctly
retrieves the appropriate ID for admins.
Related to: https://github.com/Unleash/unleash/pull/5924
## About the changes
Change the sorting of features to migrate created_by_user_id for, and
filter out unresolvable feature/users
Query tested manually in enterprise