45 lines
1.1 KiB
TypeScript
45 lines
1.1 KiB
TypeScript
import { createClient } from 'redis';
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import { customAlphabet } from 'nanoid';
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const nanoid = customAlphabet('abcdefghijklmnopqrstuvwxyz1234567890', 10);
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export const connectRedis = async () => {
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// 断开了，重连
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if (global.redisClient && !global.redisClient.isOpen) {
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await global.redisClient.disconnect();
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} else if (global.redisClient) {
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// 没断开，不再连接
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return global.redisClient;
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}
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try {
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global.redisClient = createClient({
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url: process.env.REDIS_URL
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});
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global.redisClient.on('error', (err) => {
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console.log('Redis Client Error', err);
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global.redisClient = null;
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});
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global.redisClient.on('end', () => {
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global.redisClient = null;
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});
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global.redisClient.on('ready', () => {
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console.log('redis connected');
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});
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await global.redisClient.connect();
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await global.redisClient.SELECT(0);
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return global.redisClient;
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} catch (error) {
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console.log(error, '==');
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global.redisClient = null;
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return Promise.reject('redis 连接失败');
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}
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};
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export const getKey = (prefix = '') => {
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return `${prefix}:${nanoid()}`;
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};
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