cache-panda/dist/services/cache-panda.service.js

🐼 A flexible, decorator-based smart cache module for NestJS with TTL, key prefixing, and conditional caching based on method execution time.

"use strict";
var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
    var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
    if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
    else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
    return c > 3 && r && Object.defineProperty(target, key, r), r;
};
var __metadata = (this && this.__metadata) || function (k, v) {
    if (typeof Reflect === "object" && typeof Reflect.metadata === "function") return Reflect.metadata(k, v);
};
var __param = (this && this.__param) || function (paramIndex, decorator) {
    return function (target, key) { decorator(target, key, paramIndex); }
};
var CachePandaService_1;
Object.defineProperty(exports, "__esModule", { value: true });
exports.CachePandaService = void 0;
const common_1 = require("@nestjs/common");
const cache_manager_1 = require("@nestjs/cache-manager");
let CachePandaService = CachePandaService_1 = class CachePandaService {
    constructor(cacheManager) {
        this.cacheManager = cacheManager;
        this.logger = new common_1.Logger(CachePandaService_1.name);
        CachePandaService_1.instance = this;
    }
    static getInstance() {
        if (!CachePandaService_1.instance) {
            throw new Error("[cache-panda] CachePandaService not initialized. Ensure CachePanda.register() is added to your module.");
        }
        return CachePandaService_1.instance;
    }
    async getCache(key) {
        return this.cacheManager.get(key);
    }
    async setCache(key, value, ttl) {
        if (!ttl)
            return await this.cacheManager.set(key, value);
        return await this.cacheManager.set(key, value, ttl);
    }
    async deleteCache(key) {
        await this.cacheManager.del(key);
    }
    async clearCache() {
        await this.cacheManager.reset();
    }
    async deleteCacheByKeys(keys) {
        for (const key of keys) {
            await this.cacheManager.del(key);
            this.logger.log(`Deleted cache key: ${key}`);
        }
    }
    async getKeysByKeyPattern(pattern) {
        const store = this.cacheManager.store;
        if (typeof store.keys !== "function") {
            throw new Error("[cache-panda] Cache store does not support key scanning");
        }
        const keys = await store.keys();
        return keys.filter((key) => key.includes(pattern));
    }
    async deleteCacheByKeyPattern(pattern) {
        const keys = await this.getKeysByKeyPattern(pattern);
        await Promise.all(keys.map((key) => this.deleteCache(key)));
    }
};
CachePandaService = CachePandaService_1 = __decorate([
    (0, common_1.Injectable)(),
    __param(0, (0, common_1.Inject)(cache_manager_1.CACHE_MANAGER)),
    __metadata("design:paramtypes", [Object])
], CachePandaService);
exports.CachePandaService = CachePandaService;
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