Question 121628 in Redis Question posted in
The official documentation can be found here.

Redis giving error even after redis connected in nodejs

I have redis installed on my system and its running as well.
redis installed and running

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

enter image description here

Tags:

3

Answers


  1. Chosen as BEST ANSWER
    0

    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();
})();

  2. 0

    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', {});
    Login or Signup to reply.
  3. 0

    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.

    Login or Signup to reply.
Please signup or login to give your own answer.

Back To Top
Search