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@h3channels/sdk

v0.1.0

Published

H3Channels client SDK for browser and Node.js

Vulnerabilities

Powered byPowered by Snyk
  • 0High
  • 0Medium
  • 0Low

Links

Git

Maintainers

h3channelsh3channels

Keywords

h3channelssdkclientpubsubrealtimewebsocketwebtransporthttp3typescript

Readme

@h3channels/sdk

H3Channels client SDK for browser and Node.js.

Installation

pnpm add @h3channels/sdk
# or
npm install @h3channels/sdk

Usage

See the main README for usage examples.

API

connect(options)

Creates and connects a new H3Channels client.

H3ChannelsClient

  • subscribe(channel, options) - Subscribe to a channel
  • publish(channel, data, options) - Publish a message
  • disconnect() - Disconnect from the server
  • on(event, callback) - Listen to connection state changes
  • off(event, callback) - Remove event listener

Subscription

  • onMessage(callback) - Register message handler
  • unsubscribe() - Unsubscribe from channel

Transport Modes

  • WebTransport: Used in browsers when available (Chrome 97+, Edge 97+)
  • WebSocket: Fallback transport, used in Node.js and when WebTransport is unavailable

Message Delivery Modes

  • DATAGRAM: Fast, unreliable delivery. Client automatically drops stale messages based on sequence numbers.
  • RELIABLE_STREAM: Guaranteed ordered delivery for critical messages.