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Last active February 27, 2016 04:36
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WebSocket Notes
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ws.md

Notes

WebSocket Protocol is an Application Layer protocol that enables a client and server to send and receive messages simultaneously through a full duplex stream over one TCP/IP connection on port 80 or 443.

Default WebSocket protocol client request, and server response:

  • send HTTP/1.1 GET 
    GET /chat HTTP/1.1

Host: server.example.com

Upgrade: websocket

Connection: Upgrade

Sec-WebSocket-Key: x3JJHMbDL1EzLkh9GBhXDw==

Sec-WebSocket-Protocol: chat, superchat

Sec-WebSocket-Version: 13

Origin: http://example.com
  • Server responds with HTTP/1.1 code 101 Switching Protocols 
    HTTP/1.1 101 Switching Protocols

Upgrade: websocket

Connection: Upgrade

Sec-WebSocket-Accept: HSmrc0sMlYUkAGmm5OPpG2HaGWk=

Sec-WebSocket-Protocol: chat
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