Introduction

WebSocket is protocol, which enables two-way communication between a client and server:

The goal WebSocket is to provide a mechanism for browser-based applications that need two-way communication with servers that does not rely on opening multiple HTTP connections. (RFC 6455)

WebSocket works over HTTP protocol.

Syntax

• new WebSocket(url)
• ws.binaryType /* delivery type of received message: “arraybuffer” or “blob” */
• ws.close()
• ws.send(data)
• ws.onmessage = function(message) { /* … */ }
• ws.onopen = function() { /* … */ }
• ws.onerror = function() { /* … */ }
• ws.onclose = function() { /* … */ }

Parameters

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