websocket-stats

Get stats on your Node HTTP(S) Websocket server messages.

Emit events for each upgraded HTTP/HTTPs socket message in a convenient manner.

Installation

npm install websocket-stats --save

Examples usage

Get stats for each websocket message:

const websocketStats = require('websocket-stats');
let server = http.createServer(...);
 
websocketStats(server, null, (stats) => {
  console.log(stats);
})

Get stats only for normal data (not error/init/states/end) messages:

const websocketStats = require('websocket-stats');
let server = http.createServer(...);
 
websocketStats(server, ["data"],  (stats) => {
  console.log(stats);
})

API

Constructor

websocketStats(server, eventTypes, callback)

Attach websocket-stats to a HTTP or HTTPS server. eventTypes is a list (or null object) of string types to monitor. When eventTypes is set to null, all types will be monitored. When a message occurs, the callback method is called.

Response stats object

{
  remoteAddr: "...",    // socket IP remote address
  host: "...",          // HTTP(S) host from the header
  type: "...",          // type of message/event
  bytesRead: "...",     // bytes read during the message/event
  bytesWritten: "...",  // bytes written during the message/event
  error: error          // error object if an error has occured, null otherwise
}

The type can have one the following values: init, data, error, end, connect, lookup, timeout, drain, close.

License

ISC