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feat: compare old and new proxy results (#6497)

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Mateusz Kwasniewski 2024-03-11 14:00:18 +01:00 committed by GitHub
parent a544a8a4ad
commit 160eec18a0
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1 changed files with 33 additions and 6 deletions
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39
src/lib/proxy/proxy-controller.ts
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@ -21,6 +21,7 @@ import NotImplementedError from '../error/not-implemented-error';
import NotFoundError from '../error/notfound-error';
import rateLimit from 'express-rate-limit';
import { minutesToMilliseconds } from 'date-fns';
import isEqual from 'lodash.isequal';
interface ApiUserRequest<
PARAM = any,
@ -174,23 +175,49 @@ export default class FrontendAPIController extends Controller {
if (!this.config.flagResolver.isEnabled('embedProxy')) {
throw new NotFoundError();
}
const toggles: ProxyFeatureSchema[] =
await this.services.proxyService.getProxyFeatures(
let toggles: ProxyFeatureSchema[];
let newToggles: ProxyFeatureSchema[] = [];
if (this.config.flagResolver.isEnabled('globalFrontendApiCache')) {
[toggles, newToggles] = await Promise.all([
this.services.proxyService.getProxyFeatures(
req.user,
FrontendAPIController.createContext(req),
),
this.services.proxyService.getNewProxyFeatures(
req.user,
FrontendAPIController.createContext(req),
),
]);
if (
!isEqual(
toggles.sort((a, b) => a.name.localeCompare(b.name)),
newToggles.sort((a, b) => a.name.localeCompare(b.name)),
)
) {
this.logger.warn(
`old features and new features are different. Old count ${toggles.length}, new count ${newToggles.length}`,
);
}
} else {
toggles = await this.services.proxyService.getProxyFeatures(
req.user,
FrontendAPIController.createContext(req),
);
if (this.config.flagResolver.isEnabled('globalFrontendApiCache')) {
// deliberately run comparison without blocking
void this.services.proxyService.compareToggleDefinitions(req.user);
}
const returnedToggles = this.config.flagResolver.isEnabled(
'returnGlobalFrontendApiCache',
)
? newToggles
: toggles;
res.set('Cache-control', 'no-cache');
this.services.openApiService.respondWithValidation(
200,
res,
proxyFeaturesSchema.$id,
{ toggles },
{ toggles: returnedToggles },
);
}