65 lines
1.7 KiB
TypeScript
65 lines
1.7 KiB
TypeScript
import { Injectable, OnModuleDestroy, Logger } from '@nestjs/common';
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import { ConfigService } from '@nestjs/config';
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import Redis from 'ioredis';
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@Injectable()
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export class RedisService implements OnModuleDestroy {
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private readonly logger = new Logger(RedisService.name);
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private readonly client: Redis;
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constructor(private readonly configService: ConfigService) {
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const password = this.configService.get<string>('REDIS_PASSWORD');
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this.client = new Redis({
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host: this.configService.get<string>('REDIS_HOST') || 'localhost',
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port: this.configService.get<number>('REDIS_PORT') || 6379,
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password: password || undefined,
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});
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this.client.on('connect', () => {
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this.logger.log('Connected to Redis');
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});
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this.client.on('error', (err) => {
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this.logger.error('Redis error:', err);
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});
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}
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async onModuleDestroy() {
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await this.client.quit();
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}
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getClient(): Redis {
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return this.client;
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}
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async get(key: string): Promise<string | null> {
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return this.client.get(key);
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}
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async set(key: string, value: string, ttlSeconds?: number): Promise<void> {
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if (ttlSeconds) {
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await this.client.setex(key, ttlSeconds, value);
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} else {
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await this.client.set(key, value);
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}
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}
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async del(key: string): Promise<void> {
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await this.client.del(key);
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}
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async exists(key: string): Promise<boolean> {
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const result = await this.client.exists(key);
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return result === 1;
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}
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async setJson(key: string, value: any, ttlSeconds?: number): Promise<void> {
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await this.set(key, JSON.stringify(value), ttlSeconds);
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}
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async getJson<T>(key: string): Promise<T | null> {
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const value = await this.get(key);
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return value ? JSON.parse(value) : null;
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}
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}
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