Redis, wrong number of arguments for 'set' command node.js

Question

I the simplest nodejs application that uses Redis to store sessions. I have downloaded and started reds-server on windows, but it bringsup the following error message

ReplyError: ERR wrong number of arguments for 'set' command
    at parseError (D:\Org\Projects\Up\Image metadata\Lab\Login with store\node_modules\redis-parser\lib\parser.js:179:12)
    at parseType (D:\Org\Projects\Up\Image metadata\Lab\Login with store\node_modules\redis-parser\lib\parser.js:302:14)

My simple node.js express app is the following

const express = require("express");
const session = require("express-session");
const redis = require("redis");
const connectRedis = require("connect-redis");
const bodyParser = require("body-parser");

const app = express();

app.use(bodyParser.json());
app.use(bodyParser.urlencoded({extended:true}));

const RedisStore = connectRedis(session);

const redisClient = redis.createClient({
    host:"localhost",
    port:6379
})


app.use(session({
    store: new RedisStore({client: redisClient}),
    secret:"shhhhh4",
    resave: false,
    saveUninitialized: false,
    cookie:{
        secure: false,
        httpOnly: false,
        maxAge: 5 * 30 * (24 * (1000 * 60 * 60))
    }
}));


app.get("/", (req,res)=>{
    const sess = req.session;
    if (sess.username && sess.password) {
        if (sess.username) {
            res.write(`<h1>Welcome ${sess.username} </h1><br>`)
            res.write(
                `<h3>This is the Home page</h3>`
            );
            res.end('<a href=' + '/logout' + '>Click here to log out</a >')
        }
    } else {
        res.sendFile(__dirname + "/login.html")
    }
});


app.post("/login", (req, res) => {
    const sess = req.session;
    const { username, password } = req.body
    sess.username = username
    sess.password = password
    console.log(req.body);
    // add username and password validation logic here if you want.If user is authenticated send the response as success
    res.end("success")
});

what is the problem? I have installed the latest of those imported modules, but still get the error

I am using Redis server version 2.4.5
and redis and redis-connect 6.14.6

@eol I am using Redis server version 2.4.5 and redis and redis-connect 6.14.6 — Abraham
– Abraham, Commented Feb 23, 2021 at 17:05

eol · Accepted Answer · 2021-02-23 17:15:38Z

1

You need to update to a newer version of redis as your version is rather outdated and does not support the given options of the set command, see this github issue for further details.

answered Feb 23, 2021 at 17:15

eol

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3 Comments

Abraham Over a year ago

Thanks, I updated, and npm connect-redis --version and npm redis --version now give me 6.14.6 But the problem still persists. I get the same error

Abraham Over a year ago

It worked when I updated the server application itself to 3.0.5

eol Over a year ago

Yes, that's what I meant - glad, you got it working :)

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