Class RedisCache

src/cache/rediscache.ts:9–118

import { redisClient } from './rediscache.client';

export class RedisCache implements ICache {
  private readonly logger = new Logger('RedisCache');
  private client: RedisClientType;
  private conf: CacheConfRedis;

  constructor(
    private readonly configService: ConfigService,
    private readonly module: string,
  ) {
    this.conf = this.configService.get<CacheConf>('CACHE')?.REDIS;
    this.client = redisClient.getConnection();
  }
  async get(key: string): Promise<any> {
    try {
      return JSON.parse(await this.client.get(this.buildKey(key)));
    } catch (error) {
      this.logger.error(error);
    }
  }

  async hGet(key: string, field: string) {
    try {
      const data = await this.client.hGet(this.buildKey(key), field);

      if (data) {
        return JSON.parse(data, BufferJSON.reviver);
      }

      return null;
    } catch (error) {
      this.logger.error(error);
    }
  }

  async set(key: string, value: any, ttl?: number) {
    try {
      await this.client.setEx(this.buildKey(key), ttl || this.conf?.TTL, JSON.stringify(value));
    } catch (error) {
      this.logger.error(error);
    }
  }

  async hSet(key: string, field: string, value: any) {
    try {
      const json = JSON.stringify(value, BufferJSON.replacer);

      await this.client.hSet(this.buildKey(key), field, json);
    } catch (error) {
      this.logger.error(error);
    }
  }

  async has(key: string) {
    try {
      return (await this.client.exists(this.buildKey(key))) > 0;
    } catch (error) {
      this.logger.error(error);
    }