121 lines
4.4 KiB
JavaScript
121 lines
4.4 KiB
JavaScript
"use strict";
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var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
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var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
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if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
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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;
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return c > 3 && r && Object.defineProperty(target, key, r), r;
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};
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var __importDefault = (this && this.__importDefault) || function (mod) {
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return (mod && mod.__esModule) ? mod : { "default": mod };
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};
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var RedisService_1;
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.RedisService = void 0;
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const common_1 = require("@nestjs/common");
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const ioredis_1 = __importDefault(require("ioredis"));
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let RedisService = RedisService_1 = class RedisService {
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// Keep client typed as any to avoid tight coupling to ioredis types in tests
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client = null;
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logger = new common_1.Logger(RedisService_1.name);
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lastLogAt = 0;
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LOG_THROTTLE_MS = 5000; // throttle repeated error logs
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onModuleInit() {
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const enabled = (process.env.REDIS_ENABLED || 'true').toLowerCase() === 'true';
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if (!enabled) {
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this.logger.log('Redis disabled via REDIS_ENABLED=false');
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return;
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}
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const url = process.env.REDIS_URL || 'redis://localhost:6379';
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// Use lazyConnect so application can start even if Redis is unavailable temporarily
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this.client = new ioredis_1.default(url, {
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lazyConnect: true,
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// limit retries to avoid infinite reconnect storms
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maxRetriesPerRequest: 5,
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// automatic reconnection strategy
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reconnectOnError: (err) => {
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return true;
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},
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enableOfflineQueue: true,
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// optional reconnect strategy
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retryStrategy: (times) => {
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// exponential backoff capped at 5s
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const delay = Math.min(50 * Math.pow(2, times), 5000);
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return delay;
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},
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});
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this.client.on('connect', () => this.logger.log('Connected to Redis'));
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this.client.on('ready', () => this.logger.log('Redis ready'));
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this.client.on('error', (err) => this.handleError(err));
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this.client.on('close', () => this.logger.warn('Redis connection closed'));
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this.client.on('reconnecting', () => this.logger.log('Redis reconnecting'));
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// attempt to connect but do not throw if it fails
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this.client.connect().catch((err) => {
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this.handleError(err);
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});
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}
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handleError(err) {
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const now = Date.now();
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if (now - this.lastLogAt > this.LOG_THROTTLE_MS) {
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this.logger.error('Redis error', err instanceof Error ? err.message : err);
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this.lastLogAt = now;
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}
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}
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onModuleDestroy() {
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if (this.client) {
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try {
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this.client.disconnect();
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}
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catch (e) {
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// ignore
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}
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}
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}
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getClient() {
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return this.client;
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}
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ensureClient() {
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// returns true if client is connected/usable
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return this.client && this.client.status && this.client.status !== 'end' && this.client.status !== 'close';
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}
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async get(key) {
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if (!this.ensureClient())
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return null;
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try {
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return await this.client.get(key);
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}
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catch (e) {
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this.handleError(e);
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return null;
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}
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}
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async set(key, value, ttlSeconds) {
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if (!this.ensureClient())
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return;
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try {
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if (ttlSeconds) {
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await this.client.set(key, value, 'EX', ttlSeconds);
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}
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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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catch (e) {
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this.handleError(e);
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}
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}
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async del(key) {
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if (!this.ensureClient())
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return;
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try {
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await this.client.del(key);
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}
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catch (e) {
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this.handleError(e);
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}
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}
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};
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exports.RedisService = RedisService;
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exports.RedisService = RedisService = RedisService_1 = __decorate([
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(0, common_1.Injectable)()
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], RedisService);
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//# sourceMappingURL=redis.service.js.map
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