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perf(backend): cache swSubscriptions

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This commit is contained in:
syuilo 2023-04-11 14:20:16 +09:00
parent 3a90bcc03c
commit c10d591bd0
1 changed files with 16 additions and 5 deletions
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21
packages/backend/src/core/PushNotificationService.ts
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@ -1,12 +1,14 @@
import { Inject, Injectable } from '@nestjs/common';
import push from 'web-push';
import Redis from 'ioredis';
import { DI } from '@/di-symbols.js';
import type { Config } from '@/config.js';
import type { Packed } from '@/misc/json-schema';
import { getNoteSummary } from '@/misc/get-note-summary.js';
import type { SwSubscriptionsRepository } from '@/models/index.js';
import type { SwSubscription, SwSubscriptionsRepository } from '@/models/index.js';
import { MetaService } from '@/core/MetaService.js';
import { bindThis } from '@/decorators.js';
import { RedisKVCache } from '@/misc/cache.js';
// Defined also packages/sw/types.ts#L13
type PushNotificationsTypes = {
@ -41,15 +43,27 @@ function truncateBody<T extends keyof PushNotificationsTypes>(type: T, body: Pus
@Injectable()
export class PushNotificationService {
private subscriptionsCache: RedisKVCache<SwSubscription[]>;
constructor(
@Inject(DI.config)
private config: Config,
@Inject(DI.redis)
private redisClient: Redis.Redis,
@Inject(DI.swSubscriptionsRepository)
private swSubscriptionsRepository: SwSubscriptionsRepository,
private metaService: MetaService,
) {
this.subscriptionsCache = new RedisKVCache<SwSubscription[]>(this.redisClient, 'userSwSubscriptions', {
lifetime: 1000 * 60 * 60 * 1, // 1h
memoryCacheLifetime: 1000 * 60 * 3, // 3m
fetcher: (key) => this.swSubscriptionsRepository.findBy({ userId: key }),
toRedisConverter: (value) => JSON.stringify(value),
fromRedisConverter: (value) => JSON.parse(value),
});
}
@bindThis
@ -63,10 +77,7 @@ export class PushNotificationService {
meta.swPublicKey,
meta.swPrivateKey);
// Fetch
const subscriptions = await this.swSubscriptionsRepository.findBy({
userId: userId,
});
const subscriptions = await this.subscriptionsCache.fetch(userId);
for (const subscription of subscriptions) {
if ([