📄 README.md

Socket.IO Azure Service Bus adapter

The @socket.io/azure-service-bus-adapter package allows broadcasting packets between multiple Socket.IO servers.

Table of contents

Supported features
Installation
Usage
Options
License

Supported features

Feature	`socket.io` version	Support
Socket management	`4.0.0`	:whitecheckmark: YES (since version `0.1.0`)
Inter-server communication	`4.1.0`	:whitecheckmark: YES (since version `0.1.0`)
Broadcast with acknowledgements	`4.5.0`	:whitecheckmark: YES (since version `0.1.0`)
Connection state recovery	`4.6.0`	:x: NO

Installation

npm install @socket.io/azure-service-bus-adapter

Usage

import { ServiceBusClient, ServiceBusAdministrationClient } from "@azure/service-bus";
import { Server } from "socket.io";
import { createAdapter } from "@socket.io/azure-service-bus-adapter";

const connectionString = "Endpoint=...";

const serviceBusClient = new ServiceBusClient(connectionString);
const serviceBusAdminClient = new ServiceBusAdministrationClient(connectionString);

const io = new Server({
  adapter: createAdapter(serviceBusClient, serviceBusAdminClient)
});

// wait for the creation of the pub/sub subscription
await io.of("/").adapter.init();

io.listen(3000);

Options

Name	Description	Default value
`topicName`	The name of the topic.	`socket.io`
`topicOptions`	The options used to create the topic.	`-`
`subscriptionPrefix`	The prefix of the subscription (one subscription will be created per Socket.IO server in the cluster).	`socket.io`
`receiverOptions`	The options used to create the subscription.	`-`
`topicOptions`	The options used to create the receiver.	`-`
`heartbeatInterval`	The number of ms between two heartbeats.	`5_000`
`heartbeatTimeout`	The number of ms without heartbeat before we consider a node down.	`10_000`

License

MIT