angular-websocket-service is a WebSocket service for AngularJS. Use it to send and receive messages consisting of a topic string (without spaces) followed by a space and a JSON payload. For example:

/state/put {"name": "Alice", "friends": ["Bob", "Charlie"]}

The user-facing API is:

• $websocket.connect(endpoint) to return a new wrapped WebSocket object connected to the WebSocket server at endpoint.

Wrapped WebSocket instances have the following user-facing API:

• emit(topic, body) to send outgoing messages. Messages send before the WebSocket connects are queued until the connection completes.
• register(topic, callback[, options]) to add a callback for incoming messages. The callback fingerprint should be callback(topic, body). The callback is triggered for messages who's topic starts with the registered topic. For example, callbacks registered for /state and /state/get will both be invoked for a /state/get message. You can optionally pass in an options object to configure the registration. For example, if you do want an exact topic match (instead of a prefix match), use {exact: true} (a callback registered for /state will exact set to true will not be invoked for a /state/get message).

• angular-websocket sends and receives opaque messages using a send method and events with a configurable prefix (MIT). The event-generating code is not clear to me, so I'm not actually sure how the prefix bit works.
• angular-websocket-provider sends and receives JSON messages using a request method and websocket.<METHOD> and websocket.message events. <METHOD> is set using the payload's method value (GPLv2).
• angular-reconnecting-websocket wraps websockets to automatically reconnect after accidental disconnections (MIT).