Security News
tea.xyz Spam Plagues npm and RubyGems Package Registries
Tea.xyz, a crypto project aimed at rewarding open source contributions, is once again facing backlash due to an influx of spam packages flooding public package registries.
@socket.io/redis-adapter
Advanced tools
Changelog
Readme
The @socket.io/redis-adapter
package allows broadcasting packets between multiple Socket.IO servers.
Table of contents
Feature | socket.io version | Support |
---|---|---|
Socket management | 4.0.0 | :white_check_mark: YES (since version 6.1.0 ) |
Inter-server communication | 4.1.0 | :white_check_mark: YES (since version 7.0.0 ) |
Broadcast with acknowledgements | 4.5.0 | :white_check_mark: YES (since version 7.2.0 ) |
Connection state recovery | 4.6.0 | :x: NO |
npm install @socket.io/redis-adapter
Redis Adapter version | Socket.IO server version |
---|---|
4.x | 1.x |
5.x | 2.x |
6.0.x | 3.x |
6.1.x | 4.x |
7.x and above | 4.3.1 and above |
redis
packageimport { createClient } from "redis";
import { Server } from "socket.io";
import { createAdapter } from "@socket.io/redis-adapter";
const pubClient = createClient({ url: "redis://localhost:6379" });
const subClient = pubClient.duplicate();
await Promise.all([
pubClient.connect(),
subClient.connect()
]);
const io = new Server({
adapter: createAdapter(pubClient, subClient)
});
io.listen(3000);
redis
package and a Redis clusterimport { createCluster } from "redis";
import { Server } from "socket.io";
import { createAdapter } from "@socket.io/redis-adapter";
const pubClient = createCluster({
rootNodes: [
{
url: "redis://localhost:7000",
},
{
url: "redis://localhost:7001",
},
{
url: "redis://localhost:7002",
},
],
});
const subClient = pubClient.duplicate();
await Promise.all([
pubClient.connect(),
subClient.connect()
]);
const io = new Server({
adapter: createAdapter(pubClient, subClient)
});
io.listen(3000);
ioredis
packageimport { Redis } from "ioredis";
import { Server } from "socket.io";
import { createAdapter } from "@socket.io/redis-adapter";
const pubClient = new Redis();
const subClient = pubClient.duplicate();
const io = new Server({
adapter: createAdapter(pubClient, subClient)
});
io.listen(3000);
ioredis
package and a Redis clusterimport { Cluster } from "ioredis";
import { Server } from "socket.io";
import { createAdapter } from "@socket.io/redis-adapter";
const pubClient = new Cluster([
{
host: "localhost",
port: 7000,
},
{
host: "localhost",
port: 7001,
},
{
host: "localhost",
port: 7002,
},
]);
const subClient = pubClient.duplicate();
const io = new Server({
adapter: createAdapter(pubClient, subClient)
});
io.listen(3000);
Sharded Pub/Sub was introduced in Redis 7.0 in order to help scaling the usage of Pub/Sub in cluster mode.
Reference: https://redis.io/docs/interact/pubsub/#sharded-pubsub
A dedicated adapter can be created with the createShardedAdapter()
method:
import { Server } from "socket.io";
import { createClient } from "redis";
import { createShardedAdapter } from "@socket.io/redis-adapter";
const pubClient = createClient({ host: "localhost", port: 6379 });
const subClient = pubClient.duplicate();
await Promise.all([
pubClient.connect(),
subClient.connect()
]);
const io = new Server({
adapter: createShardedAdapter(pubClient, subClient)
});
io.listen(3000);
Minimum requirements:
redis@4.6.0
Note: it is not currently possible to use the sharded adapter with the ioredis
package and a Redis cluster (reference).
Name | Description | Default value |
---|---|---|
key | The prefix for the Redis Pub/Sub channels. | socket.io |
requestsTimeout | After this timeout the adapter will stop waiting from responses to request. | 5_000 |
publishOnSpecificResponseChannel | Whether to publish a response to the channel specific to the requesting node. | false |
parser | The parser to use for encoding and decoding messages sent to Redis. | - |
Name | Description | Default value |
---|---|---|
channelPrefix | The prefix for the Redis Pub/Sub channels. | socket.io |
subscriptionMode | The subscription mode impacts the number of Redis Pub/Sub channels used by the adapter. | dynamic |
FAQs
The Socket.IO Redis adapter, allowing to broadcast events between several Socket.IO servers
The npm package @socket.io/redis-adapter receives a total of 149,453 weekly downloads. As such, @socket.io/redis-adapter popularity was classified as popular.
We found that @socket.io/redis-adapter demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
Did you know?
Socket for GitHub automatically highlights issues in each pull request and monitors the health of all your open source dependencies. Discover the contents of your packages and block harmful activity before you install or update your dependencies.
Security News
Tea.xyz, a crypto project aimed at rewarding open source contributions, is once again facing backlash due to an influx of spam packages flooding public package registries.
Security News
As cyber threats become more autonomous, AI-powered defenses are crucial for businesses to stay ahead of attackers who can exploit software vulnerabilities at scale.
Security News
UnitedHealth Group disclosed that the ransomware attack on Change Healthcare compromised protected health information for millions in the U.S., with estimated costs to the company expected to reach $1 billion.