| 1 | import type { DynamicModule } from '@nestjs/common' |
| 2 | import { Cluster, Redis } from 'ioredis' |
| 3 | import { EventStreamExplorer } from './event-stream.explorer' |
| 4 | import { EventStreamService } from './event-stream.service' |
| 5 | import { RedisPubSubService } from './pub-sub.service' |
| 6 | import { RedisConfig } from './redis.config' |
| 7 | import { RedisService } from './redis.service' |
| 8 | |
| 9 | const REDIS_PUBSUB_SUBSCRIBER = Symbol('REDIS_PUBSUB_SUBSCRIBER') |
| 10 | const REDIS_PUBSUB_PUBLISHER = Symbol('REDIS_PUBSUB_PUBLISHER') |
| 11 | |
| 12 | function createRedisClient(config: RedisConfig, options?: { enableReadyCheck?: boolean }) { |
| 13 | if ('nodes' in config) { |
| 14 | return new Cluster(config.nodes, { |
| 15 | ...config.options, |
| 16 | dnsLookup: (address, callback) => callback(null, address), |
| 17 | }) |
| 18 | } |
| 19 | const tls = config.tls ? {} : undefined |
| 20 | return new Redis({ |
| 21 | ...config, |
| 22 | maxRetriesPerRequest: null, |
| 23 | tls, |
| 24 | enableReadyCheck: options?.enableReadyCheck ?? true, |
| 25 | }) |
| 26 | } |
| 27 | export class RedisModule { |
| 28 | static forRoot(config: RedisConfig): DynamicModule { |
| 29 | return { |
| 30 | module: RedisModule, |
| 31 | providers: [ |
| 32 | { |
| 33 | provide: Redis, |
| 34 | useFactory: () => createRedisClient(config), |
| 35 | }, |
| 36 | { |
| 37 | provide: REDIS_PUBSUB_SUBSCRIBER, |
| 38 | useFactory: () => createRedisClient(config, { enableReadyCheck: false }), |
| 39 | }, |
| 40 | { |
| 41 | provide: REDIS_PUBSUB_PUBLISHER, |
| 42 | useFactory: () => createRedisClient(config, { enableReadyCheck: false }), |
| 43 | }, |
| 44 | { |
| 45 | provide: RedisService, |
| 46 | useFactory: (client: Redis) => new RedisService(client), |
| 47 | inject: [Redis], |
| 48 | }, |
| 49 | { |
| 50 | provide: RedisPubSubService, |
| 51 | useFactory: (subscriber: Redis, publisher: Redis) => new RedisPubSubService(subscriber, publisher), |
| 52 | inject: [REDIS_PUBSUB_SUBSCRIBER, REDIS_PUBSUB_PUBLISHER], |
| 53 | }, |
| 54 | { |
| 55 | provide: EventStreamService, |
| 56 | useFactory: (client: Redis) => new EventStreamService(client), |
| 57 | inject: [Redis], |
| 58 | }, |
| 59 | EventStreamExplorer, |
| 60 | ], |
| 61 | exports: [RedisService, RedisPubSubService, EventStreamService, Redis], |
| 62 | global: true, |
| 63 | } |
| 64 | } |
| 65 | } |
| 66 |