How to subscribe to multiple channels on Redis NodeJS

redis multiple subscribers
redis - npm
node js redis pubsub tutorial
promisify redis
nodejs redis subscribe
ioredis subscribe
redis broadcaster
redis psubscribe

I have a function which I will call from time to time.

function blah() {
   sub.unsubscribe();
   sub.subscribe("a");
   sub.subscribe("b");
}

Above results in error message "Error: node_redis command queue state error."

Same as https://github.com/mranney/node_redis/issues/137

subscriptions of multiple channels returns latest channel only · Issue , Version: 2.6.3 Platform: Node.js@7.3.0 macOS Description: data from channel only debug trace Net read sm.sp.dev:6379 id 1 Redis server  The syntax of redis SUBSCRIBE command is as follows :-Syntax :- redis host:post> SUBSCRIBE <channel> [ <channel> ] Output :- - (array) reply of 3 elements. Format of Pushed Message :-A message is a array reply with three elements. The first element of the array reply is of following kind :-subscribe : It means that we have successfully subscribed to the channel given as the second element in the reply. The third argument represents the number of channels we are currently subscribed to.

I am currently using redis.I was also facing the same issue in which i was trying to subscribe a set of channels.

var redis = require('redis')

const subscribe = redis.createClient({
    host: 'localhost',
    port: 6379
}) 
subscribe.psubscribe(`user:chat:*`)

subscribe.on('pmessage', function(pattern, channel, message) {
    console.log(channel, message, pattern)
    // Write Your Awesome Code here.
})

Psubscribe used for subscribing for multiple channels using redis. You can subscribe multiple channel on the basis of pattern.

Subscribing & unsubscribing to multiple channels crashes client , Using redis@0.10.1, this code: var redis = require('redis'); var client = redis.​createClient(); client.subscribe('one', 'two', 'three', function(err) {})  Using redis@0.10.1, this code: var redis = require(&#39;redis&#39;); var client = redis.createClient(); client.subscribe(&#39;one&#39;, &#39;two&#39;, &#39;three&#39

Once a connection is subscribed, it can only issue subscription related commands (subscribe, psubscribe, etc) Might another part of your code be using the same connection? You could also try and subscribe to multiple channels with one call sub.subscribe("a", "b") or subscribe to a pattern that matches your need?

Subscribe to multiple channels with ioredis - node.js - html, I have a broadcast server with socket.io and ioredis via node. However, with my current form I can only subscribe to one channel a time. var Redis  The SUBSCRIBE command is used to subscribe to channels. This command puts the client in a special “subscribed” state where it no longer sends commands other than additional SUBSCRIBE or UNSUBSCRIBE commands. SUBSCRIBE channel [channel]

How to subscribe to multiple channels on Redis NodeJS, I'm using Redis with Node.js. client = redis.createClient(); client.subscribe("​__keyspace#0__:url_set"); client.on("message",function(channel, message)  SUBSCRIBE. channel [channel ] Available since 2.0.0. Time complexity: O (N) where N is the number of channels to subscribe to. Subscribes the client to the specified channels. Once the client enters the subscribed state it is not supposed to issue any other commands, except for additional SUBSCRIBE, PSUBSCRIBE, UNSUBSCRIBE , PUNSUBSCRIBE, PING and QUIT commands.

Pub/Sub – Redis, For instance in order to subscribe to channels foo and bar the client issues a a single message multiple times if it's subscribed to multiple patterns matching a  This tutorial explains various ways of interacting with Redis from a Node.js app using the node_redis library. Installing node_redis. node_redis, as you may have guessed, is the Redis client for

I'm really struggling to get node to subscribe to multiple redis channels., I'm trying to figure out how to use multiple redis channels with node. For some reason I can't List of tools you can use for checking vulnerabilities in Node.js. Get Multiple Redis Hashes in Node.js Redis is an open source, scalable, in-memory, key/value store. It can store various types of values (Strings, Lists, Sorted Lists, Hashes, Etc) with built-in commands for each data type.