@atmus/nestjs-cache/dist/cache/cache.service.js

NestJS - Redis Cache integration

"use strict";
var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
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};
var __metadata = (this && this.__metadata) || function (k, v) {
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};
var __param = (this && this.__param) || function (paramIndex, decorator) {
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var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
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        step((generator = generator.apply(thisArg, _arguments || [])).next());
    });
};
var CacheService_1;
Object.defineProperty(exports, "__esModule", { value: true });
exports.CacheService = void 0;
const common_1 = require("@nestjs/common");
const crypto = require("crypto");
const ioredis_1 = require("ioredis");
const util = require("util");
const constants_1 = require("./constants");
let CacheService = CacheService_1 = class CacheService {
    constructor(config) {
        this.logger = new common_1.Logger(CacheService_1.name);
        this.redis = new ioredis_1.Redis(config);
        this.redis.on('connect', () => this.logger.debug('Redis is connected'));
        this.redis.on('error', this.logger.error);
    }
    set(key, value, option, optionValue) {
        const setPromisefy = util.promisify(this.redis.set).bind(this.redis);
        if (option !== undefined && optionValue !== undefined) {
            return setPromisefy(key, value, option, optionValue);
        }
        return setPromisefy(key, value);
    }
    setFromParams(key, params, value, option, optionValue) {
        const finalKey = `${key}:${this.encryptParams(params)}`;
        if (option !== undefined && optionValue !== undefined) {
            return this.set(finalKey, value, option, optionValue);
        }
        return this.set(finalKey, value);
    }
    get(key) {
        const getPromisefy = util.promisify(this.redis.get).bind(this.redis);
        return getPromisefy(key);
    }
    getFromParams(key, params) {
        const finalKey = `${key}:${this.encryptParams(params)}`;
        return this.get(finalKey);
    }
    getKeys(pattern) {
        const getKeysPromisefy = util.promisify(this.redis.keys).bind(this.redis);
        return getKeysPromisefy(pattern);
    }
    del(key) {
        const delPromisefy = util.promisify(this.redis.del).bind(this.redis);
        return delPromisefy(key);
    }
    delFromPattern(pattern) {
        return __awaiter(this, void 0, void 0, function* () {
            const all = yield this.getKeys(pattern);
            for (const item of all)
                this.del(item);
        });
    }
    delFromParams(key, params) {
        const finalKey = `${key}:${this.encryptParams(params)}`;
        return this.del(finalKey);
    }
    encryptParams(params) {
        const str = JSON.stringify(params);
        return crypto.createHash('sha256').update(str).digest('base64');
    }
};
exports.CacheService = CacheService;
exports.CacheService = CacheService = CacheService_1 = __decorate([
    (0, common_1.Injectable)(),
    __param(0, (0, common_1.Inject)(constants_1.CACHE_CONFIG_OPTIONS)),
    __metadata("design:paramtypes", [Object])
], CacheService);