use redis as a database using nodeJS

Question

I use 'redis' module in my app. But it's throw error. My code is following -

//app.js

var express = require('express');
var path = require('path');
var favicon = require('serve-favicon');
var logger = require('morgan');
var cookieParser = require('cookie-parser');
var bodyParser = require('body-parser');
var redis = require('redis');

var client = redis.createClient('localhost', 3000); 
client.on('connect', function() {
    console.log("connected");
});

Here is the error:

Adityas-MacBook-Air:node_elastic_redis adityagupta$ npm start 

> [email protected] start /Users/adityagupta/Desktop/node_elastic_redis 
> node ./bin/www events.js:154 throw er; // Unhandled 'error' event ^ 

Error: Redis connection to 127.0.0.1:6379 failed - connect ECONNREFUSED 127.0.0.1:6379 
    at Object.exports._errnoException (util.js:856:11) 
    at exports._exceptionWithHostPort (util.js:879:20) 
    at TCPConnectWrap.afterConnect [as oncomplete] (net.js:1057:14)

Redis usually installs itself on port 6379, why are you using 3000? — Vsevolod Goloviznin
– Vsevolod Goloviznin, Commented Mar 8, 2016 at 19:22
Adityas-MacBook-Air:node_elastic_redis adityagupta$ npm start > [email protected] start /Users/adityagupta/Desktop/node_elastic_redis > node ./bin/www events.js:154 throw er; // Unhandled 'error' event ^ Error: Redis connection to 127.0.0.1:6379 failed - connect ECONNREFUSED 127.0.0.1:6379 at Object.exports._errnoException (util.js:856:11) at exports._exceptionWithHostPort (util.js:879:20) at TCPConnectWrap.afterConnect [as oncomplete] (net.js:1057:14) — Aditya Gupta
– Aditya Gupta, Commented Mar 8, 2016 at 19:27

Scadoodles · Accepted Answer · 2016-05-12 15:36:16Z

2

The port should be the first argument according to documentation like so:

redis.createClient(port[, host][, options])

Or in your case:

var client = redis.createClient(6379, 'localhost');

answered May 12, 2016 at 15:36

Scadoodles

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Comments

mikefrey · Accepted Answer · 2016-03-08 19:47:59Z

1

Based on the error message, either redis is not running, or not running on the port specified.

Try using the default redis port of 6379. If you are running redis on the same machine the node app is running on, you may not have to specify the host and port:

var client = redis.createClient('localhost', 6379);

or

var client = redis.createClient();

answered Mar 8, 2016 at 19:47

mikefrey

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1 Comment

Aditya Gupta Over a year ago

By using redis.createClient('localhost', 6379); It's generate - /Users/adityagupta/Desktop/node_elastic_redis/node_modules/redis/index.js:1303 options.path = port_arg;

Community · Accepted Answer · 2017-05-23 12:32:20Z

0

You only installed a driver without the actual server , For redis to work ... you have to install redis server on your local machine.

Head to Redis Official Site to get the latest version of redis , if you are using windows by any chance , Have a look at these

edited May 23, 2017 at 12:32

CommunityBot

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answered Mar 14, 2017 at 9:18

Fahad

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