trying to connect to Redis using typescript and nodejs

Question

I am trying to connect to Redis using typescript and nodejs but I keep getting ** error TS2693: 'RedisStore' only refers to a type, but is being used as a value here.**

    let redisCLient = createClient({legacyMode: true});
redisCLient.connect().catch(console.error);

declare module "express-session" {
  interface SessionData {
    isLoggedIn: boolean;
  }
}


// middleware
app.use(express.json());
app.use(express.urlencoded({extended: true}));
app.use(cors());
app.use(
  session({
    secret: "reddit_apples_should_be_next",
    resave: false,
    saveUninitialized: false,
    store: new RedisStore({client: redisCLient}),
  })
);

The error states that you can't use RedisStore to instantiate a new RedisStore, since it's only a type, not a class or interface. If you're using connect-redis, you have to declare a variable in this fashion: let RedisStore = require("connect-redis")(session) — saguirrews
– saguirrews, Commented Jan 27, 2023 at 1:39

Ali Iqbal · Accepted Answer · 2023-01-27 05:33:04Z

1

You can do stuff like this

Basic Redis setup

Import statements

const express = require('express');
const session = required('express-session');
const redis = require('redis');
const connectRedis = require('connect-redis');
const app = express();
app.use(express.json());

connection

const RedisStore = connectRedis(session);

const redisClient = redis.createClient(
port: 6379,
host: 'localhost'
});

configure session middleware

app.use(session({
store: new RedisStore({client: redisClient}),
secret: 'mySecret',
saveUninitialized: false,
resave: false,
name:'sessionId',
cookie: {

//secure false for non https request , keep false in production

secure: false,

// if true, prevents client side JS from reading the cookie

httpOnly: true,

//session age in millisec // 30 mins

maxAge: 1000 * 60 * 30
}
}));

answered Jan 27, 2023 at 5:33

Ali Iqbal

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