This PR is the first step in separating the client and admin stores.
Currently our feature toggle services uses the client store to serve
multiple purposes.
Admin API uses the feature toggle service to serve both the feature
toggle list and playground features, while the client API uses the
feature toggle service to serve client features. The admin API can
change often and have very different requirements than the client API,
which changes infrequently and generally keeps the same stable structure
for long periods of time. This architecture is error prone, because when
you need to make changes to the admin API, you can very easily affect
the client API.
I aim to put up a stone wall between the two APIs. Complete separation
between the two APIs, at the cost of some duplication.
In this PR I have created a feature oriented architecture for client
features and disconnected the client API from the feature toggle
service. It now goes through it's own service to it's own store. For
feature toggle service I have duplicated and replaced the functionality
that serves /api/admin/features, I have kept a lot of the ugliness in
the code and haven't removed anything in order to avoid breaking
changes.
Next steps:
* Move playground to admin API
* Remove client-feature-toggle-store from feature-toggle-service
## About the changes
This splits the interfaces for import and export, especially because the
import functionality has to be replaced in enterprise repo.
This is a breaking change because of the service renames, but I'll have
the PR for the other repository ready so we reduce the time to fix. I
intentionally avoided doing it backward compatible because of time.
As part of more telemetry on the usage of Unleash.
This PR adds a new `stat_` prefixed table as well as a trigger on the
events table trigger on each insert to increment a counter per
environment per day.
The trigger will trigger on every insert into the events base, but will
filter and only increment the counter for events that actually have the
environment set. (there are events, like user-created, that does not
relate to a specific environment).
Bit wary on this, but since we truncate down to row per (day,
environment) combo, finding conflict and incrementing shouldn't take too
long here.
@ivarconr was it something like this you were considering?
## About the changes
This transactional implementation decorates a service with a
transactional method that removes the need to start transactions in the
method using the service.
This is a gradual rollout with a feature toggle, just because
transactions are not easy.
This commit changes our linter/formatter to biome (https://biomejs.dev/)
Causing our prehook to run almost instantly, and our "yarn lint" task to
run in sub 100ms.
Some trade-offs:
* Biome isn't quite as well established as ESLint
* Are we ready to install a different vscode plugin (the biome plugin)
instead of the prettier plugin
The configuration set for biome also has a set of recommended rules,
this is turned on by default, in order to get to something that was
mergeable I have turned off a couple the rules we seemed to violate the
most, that we also explicitly told eslint to ignore.
https://linear.app/unleash/issue/2-1403/consider-refactoring-the-way-tags-are-fetched-for-the-events
This adds 2 methods to `EventService`:
- `storeEvent`;
- `storeEvents`;
This allows us to run event-specific logic inside these methods. In the
case of this PR, this means fetching the feature tags in case the event
contains a `featureName` and there are no tags specified in the event.
This prevents us from having to remember to fetch the tags in order to
store feature-related events except for very specific cases, like the
deletion of a feature - You can't fetch tags for a feature that no
longer exists, so in that case we need to pre-fetch the tags before
deleting the feature.
This also allows us to do any event-specific post-processing to the
event before reaching the DB layer.
In general I think it's also nicer that we reference the event service
instead of the event store directly.
There's a lot of changes and a lot of files touched, but most of it is
boilerplate to inject the `eventService` where needed instead of using
the `eventStore` directly.
Hopefully this will be a better approach than
https://github.com/Unleash/unleash/pull/4729
---------
Co-authored-by: Gastón Fournier <gaston@getunleash.io>
