## What
This PR adds an extra layer of OpenAPI validation testing to what we already have. It also fixes any issues that make the new tests fail.
## Why
While the current OpenAPI validation takes care of _some_ things, there's also things it misses, as shown by #2055. By adding the OpenAPI Enforcer package, we should hopefully be able to catch more of these errors in the future. The enforcer _does_ flag the issue in #2055 as an error.
## How
By adding the OpenAPI Enforcer package and making whatever changes it picks up on.
By adding location headers to all our 201 endpoints. I also had to change some signatures on `create` store methods so that they actually return something (a lot of them just returned `void`).
## Discussion points
### Code changes
Some of the code changes may not be necessary or we may want to change more code to align with what changes have been done. It may be worth standardizing on a pattern for `*store.create` methods, so that they always return an identifier or the stored object, for instance.
### On relative URIs
The 201 location headers use relative URIs to point to the created resources. This seemed to be the easiest way to me, as we don't need to worry about figuring out what the absolute URL of the instance is (though we could probably just concat it to the request URI?). The algorithm for determining relative URIs is described in [RFC 3986 section 5](https://www.rfc-editor.org/rfc/rfc3986#section-5).
There's also some places where I'm not sure we _can_ provide accurate location url. I think they're supposed to point _directly at_ whatever the resource is, but for some resources (such as api tokens), you can only get it as part of a collection. From [RFC 9110 on the location field](https://httpwg.org/specs/rfc9110.html#field.location) (emphasis mine):
> the Location header field in a [201 (Created)](https://httpwg.org/specs/rfc9110.html#status.201) response is supposed to provide a URI that is **specific** to the created resource.
A link to a collection is not specific. I'm not sure what best to do about this.
### Inline comments
I've added a number of inline PR comments that I'd love to get some feedback on too. Have a look and let me know what you think!
### Unfinished business
I've added some juicy comments to some of the files here. They contain non-blocking issues that I'm tracking (via github issues). We should resolve them in the future, but right now they can stay as they are.
## Commits
* Feat: add openapi-enforcer + tests; fix _some_ issues
* Test: allow non-standard string formats
* validation: fix _some_ 201 created location header endpoints
* #1391: fix remaining 201 location headers missing
* Refactor: use the ajv options object instead of add* methods
* #1391: flag validation errors and warnings as test failures
* #1391: modify patch schema to specify either object or array
We don't provide many patch endpoints, so we _could_ create separate
patch operation objects for each one. I think that makes sense to do
as part of the larger cleanup. For now, I think it's worth to simply
turn it into one of these. While it's not entirely accurate, it's
better than what we had before.
* Refactor: make tests easier to read
* #1391: use enum for valid token types
This was previously only a description. This may seem like a breaking
change because OpenAPI would previously accept any string. However,
Joi also performs validation on this, so invalid values wouldn't work
previously either.
* #1391: Comment out default parameter values for now
This isn't the _right_ way, but it's the pragmatic solution. It's not
a big deal and this works as a stopgap solution.
* #1391: add todo note for api token schema fixes
* #1391: update snapshot
* Revert "#1391: modify patch schema to specify either object or array"
This reverts commit 0dd5d0faa1.
Turns out we need to allow much more than just objects and arrays.
I'll leave this as is for now.
* Chore(#1391): update comment explaining api token schema TODO
* #1391: modify some test code and add comment
* #1391: update tests and spec to allow 'any' type in schema
* Chore: remove comment
* #1391: add tests for context field stores
* #1391: add location header for public signup links
* #1391: fix query parameter description.
There was indeed a bug in the package, and this has been addressed
now, so we can go back to describing the params properly.
* Feat: return reasons why a feature evaluated to true or false
Note: this is very rough and just straight ripped from the nodejs
client. It will need a lot of work, but is a good place to start
* Feat: add suggested shape for new payload
* Chore: minor cleanup
* Wip: make server compile again
* Remove unused schema ref
* Export new schemas
* Chore: fix some tests to use sub property
* Fix: fix some tests
* Refactor: rename some variables, uncomment some stuff
* Add segments type to bootstrap options
* Add segments capability to offline feature evaluator
* Fix function calls after turning params into an option abject
* Feat: test strategy order, etc
* Feat: add test to check that all strats are returned correctly
* Feat: allow you to include strategy ids in clients
* Wip: hook up segments in the offline client.
Note: compared to regular clients, they still fail
* Feat: add segments validation
* Fix: fix test case invariant.
* Chore: revert to returning only `boolean` from strategies.
This _should_ make it work with custom strategies too 🤞
* Feat: make more properties of the returned feature required
* Wip: add some comments and unfinished tests for edge cases
* Feat: add `isEnabledInCurrentEnvironment` prop
* Feat: consider more strategy failure cases
* Feat: test that isenabledinenvironment matches expectations
* Feat: add unknown strategies
* Fix: fix property access typo
* Feat: add unknown strategy for fallback purposes
* Feat: test edge case: all unknown strategies
* Feat: add custom strategy to arbitrary
* Feat: test that features can be true, even if not enabled in env
* Chore: add some comments
* Wip: fix sdk tests
* Remove comments, improve test logging
* Feat: add descriptions and examples to playground feature schema
* Switch `examples` for `example`
* Update schemas with descriptions and examples
* Fix: update snapshot
* Fix: openapi example
* Fix: merge issues
* Fix: fix issue where feature evaluation state was wrong
* Chore: update openapi spec
* Fix: fix broken offline client tests
* Refactor: move schemas into separate files
* Refactor: remove "reason" for incomplete evaluation.
The only instances where evaluation is incomplete is when we don't
know what the strategy is.
* Refactor: move unleash node client into test and dev dependencies
* Wip: further removal of stuff
* Chore: remove a bunch of code that we don't use
* Chore: remove comment
* Chore: remove unused code
* Fix: fix some prettier errors
* Type parameters in strategies to avoid `any`
* Fix: remove commented out code
* Feat: make `id` required on playground strategies
* Chore: remove redundant type
* Fix: remove redundant if and fix fallback evaluation
* Refactor: reduce nesting and remove duplication
* Fix: remove unused helper function
* Refactor: type `parameters` as `unknown`
* Chore: remove redundant comment
* Refactor: move constraint code into a separate file
* Refactor: rename `unleash` -> `feature-evaluator`
* Rename class `Unleash` -> `FeatureEvaluator`
* Refactor: remove this.ready and sync logic from feature evaluator
* Refactor: remove unused code, rename config type
* Refactor: remove event emission from the Unleash client
* Remove unlistened-for events in feature evaluator
* Refactor: make offline client synchronous; remove code
* Fix: update openapi snapshot after adding required strategy ids
* Feat: change `strategies` format.
This commit changes the format of a playground feature's `strategies`
properties from a list of strategies to an object with properties
`result` and `data`. It looks a bit like this:
```ts
type Strategies = {
result: boolean | "unknown",
data: Strategy[]
}
```
The reason is that this allows us to avoid the breaking change that
was previously suggested in the PR:
`feature.isEnabled` used to be a straight boolean. Then, when we found
out we couldn't necessarily evaluate all strategies (custom strats are
hard!) we changed it to `boolean | 'unevaluated'`. However, this is
confusing on a few levels as the playground results are no longer the
same as the SDK would be, nor are they strictly boolean anymore.
This change reverts the `isEnabled` functionality to what it was
before (so it's always a mirror of what the SDK would show).
The equivalent of `feature.isEnabled === 'unevaluated'` now becomes
`feature.isEnabled && strategy.result === 'unknown'`.
* Fix: Fold long string descriptions over multiple lines.
* Fix: update snapshot after adding line breaks to descriptions
* Wip: fix openapi spec
* Feat: add openapi enforcer for enforcing the generated schema
* Chore: Allow the example keyword in params
* Feat: add validator tests and fix some errors
* Use @apidevtools/swagger-parser for schema validation
* Wip: refactor tests for updated schema name
* Feat: update request params creation method
* Feat: add query params to state
* Refactor: move mapping test into separate function
* Refactor: rename request-parameters -> query-parameters
* Refactor: expose only finished query parameters
* Wip: fixup param types
* Refactor: remove unused types
* Chore: rename and cleanup
* Chore: cleanup
* Fix: Update snapshot
* Fix: use ?? Instead of paramToBool to get defaults
* Wip: generate query param object type from openapi params list
* Wip: use generated types for export query params
* Revert "Fix: use ?? Instead of paramToBool to get defaults"
This reverts commit 842567500b.
Because we accept bools, strings, and numbers, this is the only way to
do it.
* Chore: update and pin json-schema-to-ts
* Fix: use `&` to merge types
* Update snapshot
* Chore: rename export-parameters-schema -> export-query-parameters
When it ends in `schema`, the tests expect it to be included in the
openapi index file.
* Chore: add unleash-client dependency
* Feat: add openapi specs for basic sdk contexts and playground reqs
* Feat: add openapi spec for response
* Feat: add openAPI entry for playground endpoint
* Fix: remove required 'projects' property that doesn't exist
* Refactor: add test placeholders for playground api
* Chore: improve openAPI description for playground request
* Refactor: align example project names
* Fix: update openapi snapshot
* Fix: summary -> description; example -> examples
* Feat: add fast-check and stub out one test.
The test doesn't work yet.
* Feat: add test and generator for sdk context schema
* Feat: add generators and tests for all new schemas
* Feat: test that the same input is returned exactly
* Feat: add more tests and more schemas
* Refactor: clean up tests some
* Refactor: simplify url friendliness check
* Refactor: fix types for playground request schema generator
* Feat: add bad request test
* Fix: make parameters the correct shape in generator
* Feat: scaffold out tests for service and endpoint
Liberal use of @ts-expect-error
* Fix: update snapshot with new model
* Add missing appName
* wip: stub out some extra tests
* Feat: model strategies for testing
* Feat: model variant payloads better
* Refactor: input params for function
* Refactor: use email address for user id generation
* Chore: update comment
* Wip: start stubbing out e2e tests
* Refactor: move tests requiring db to e2e file
* Fix: make e2e tests run as expected
* Fix: make toggle generator test work as expected
* Fix: increase timeout for long-running e2e test
* Wip: map toggles test
* Wip: test movement and cleanup
* Refactor: remove `AllowedStrings` in favor of typeof X[number]
* Wip: add e2e tests for the service
* Wip: tests in progress
* Feat: return fuller variant value
* Wip: delete redundant test.
Both those tests were testing versions of the same thing, so let's
delete one of them
* Feat: update openAPI snapshot
* Feat: hook up the playground service
* Feat: fix test cases for e2e api
* Refactor: get rid of _one_ 'as unknown as x' cast
* Fix: wait for the client to be ready before we pass it back
* Fix: weights go to 1000!
* Fix: fix some test assertions, add one more test to be sure
* Wip: add some test parameters to hopefully avoid timeouts
* Fix: don't init the client if there are no toggles
If you don't provide it with any toggles to bootstrap, then the client
will never be ready. This avoids that.
This adds two ways around it because we'll probably get away with a
bit less computation if we don't even try to initialize it. However,
we also don't want anyone else to make this mistake.
* Chore: modify test params
* Feat: use the type system to avoid empty lists for initialization
* Refactor: make tests simpler
* Feat: test basic context values
* Feat: test dynamic context values
* Fix: make custom context field test more reliable
* Feat: use unique arrays for toggles
* Feat: make `appName` required in context
* Fix: sdk context schema arbitrary: make appName at least 1 char long
* Fix: add a minimum length on appName in the context schema
* Fix: fix tests that fail due to new requirements
* Fix: update a test: remove variant mapping testing
* Fix: fix remaining tests
* Feat: rename response.toggles -> response.features
* Refactor: avoid single-letter predicate variables
* Refactor: extract offlineclient into its own file
* Refactor: move arbitraries into separate file
* Refactor: move playground requests into util function
* Fix: remove duplicate declaration of urlFriendlyString
* Chore: update comment
* Refactor: align on arbitrary generator naming
* Feat: Export single strategy arbitrary
