Redis giving error even after redis connected in nodejs - node.js

Question

I have redis installed on my system and its running as well.
from node application, im using below code to work with redis.
redis.js
const redis = require("redis");
let client = redis.createClient(6379, '127.0.0.1', {});
let isRedis = false;
client.on("connect", function () {
console.log(`connected to redis`);
isRedis = true;
});
client.on("error", function (err) {
console.log("redis connection error " + err);
throw err;
});
client.on("end", function (err) {
console.log("redis connection end " + err);
});
module.exports = {
SetRedis,
GetKeys,
GetRedis,
GetKeyRedis,
delRedis
};
im using node index.js command to run the application which should also give me "connected to redis" when the connection is established, but i'm not getting this message on my console .
the npm package is also present in package.json

Answer 1

Node Redis 4.x doesn't allow you to pass in discrete arguments for the host and port. The canonical example of connecting to Redis with Node Redis is this:
import { createClient } from 'redis';
(async () => {
const client = createClient();
client.on('error', (err) => console.log('Redis Client Error', err));
await client.connect();
await client.set('key', 'value');
const value = await client.get('key');
})();
If you want to connect to somewhere other than localhost on port 6379, I recommend using a URL. Like this:
createClient({ url: 'redis://awesome.redis.server:6380' });
But if you want finer control, you can find all the gritty configuration options in the documentation on GitHub.

Answer 2

I guess you are making mistake while making connection.
It should have been
let client = redis.createClient('127.0.0.1', 6379, {});
rather than
let client = redis.createClient(6379, '127.0.0.1', {});

Answer 3

Working redis.js,
const redis = require("redis");
let isRedis = false;
(async () => {
let client = redis.createClient(6379, '127.0.0.1', {});// create config
client.on("connect", function () {
console.log(`connected to redis`);
isRedis = true;
});
client.on("error", function (err) {
console.log("redis connection error " + err);
throw err;
});
client.on("end", function (err) {
console.log("redis connection end " + err);
});
function GetKeyRedis(key) {
return new Promise(function (resolve, reject) {
console.log("dd----",key,isRedis);
if (isRedis) {
client.get(key).then((data,err) => {
if(err){
reject(err);
}
if(data){
resolve(data)
} else {
resolve(false);
}
});
} else {
resolve(false);
}
});
}
module.exports = {
GetKeyRedis
};
await client.connect();
})();