aedes-server-factory v0.2.1

aedes-server-factory

Aedes server factory. Supports TCP, HTTP, HTTP2, WS, and PROXY decoders.

Work In Progress: TLS, HTTPS, HTTP2, WSS.

Install

To install aedes-server-factory :

npm install aedes-server-factory

Usage

1 - Per default, if no options are set, createServer will return a TCP server instance, from which the stream will be bound to aedes (via aedes.handle).

2 - To bind a Websocket stream to Aedes, set ws to true, and eventually configure the HTTP server instance by using one of http or http2 options.

Additionaly, you can add https option to create a secure HTTP | HTTP2 server.

createServer will then return an HTTP | HTTP2 server instance.

Options

tcp

Object used to create and configure a TCP server.

tls

Object used to create and configure a TCP over TLS server.

Default to null, if defined, will be used to create TCP secure server.

ws

boolean used to wrap a http | http2 | https server in a websocket server.

http

Object used to create and configure HTTP server.

createServer will return the HTTP server if no HTTP options is defined.

customWSErrorHandler

function used to handle errors thrown by WS server.

customWSErrorHandler will be called with Error.

http2

Object used to create and configure HTTP2 server.

Default to null, if defined, will be used to create HTTP2 server instance.

https

https://nodejs.org/api/http2.html#http2_http2_createsecureserver_options_onrequesthandler

Object used to create and configure HTTPS server, can be used in combination of HTTP | HTTP2 option.

Default to null, if defined, will be used to create HTTP | HTTP2 secure server.

trustProxy

boolean to indicates that aedes-server-factory should retrieve information from the Proxy server ( HTTP headers and/or Proxy protocol header ).

Default to false.

extractSocketDetails (socket)

• socket: <Duplex | Socket>

Invoked when options.trustProxy is false | undefined.

aedes-protocol-decoder extractSocketDetails function is used as default value.

const aedes = require('aedes')();
const { createServer } = require('aedes-server-factory');
const yourDecoder = require('./path-to-your-decoder');

const options = { trustProxy: false };
options.extractSocketDetails = function (socket) {
  return yourDecoder(socket);
};

const server = createServer(aedes, options);

protocolDecoder (conn, buffer, req)

• conn: <Duplex | Socket>
• buffer: <Buffer>
• req?: <IncomingMessage>

Invoked when options.trustProxy is true.

aedes-protocol-decoder protocolDecoder function is used as default value.

const aedes = require('aedes')();
const { createServer } = require('aedes-server-factory');
const yourDecoder = require('./path-to-your-decoder');

const options = { trustProxy: true };
options.protocolDecoder = function (conn, buffer) {
  return yourDecoder(conn, buffer);
};

const server = createServer(aedes, options);

serverFactory (aedes, options)

• aedes: <Aedes>
• options: <object>

Use to override createServer behavior and create your own server instance.

const aedes = require('aedes')();
const { createServer } = require('aedes-server-factory');

const options = { trustProxy: false };
options.serverFactory = function (aedes, options) {
  return net.createServer((conn) => {
    aedes.handle(conn);
  });
};

const server = createServer(aedes, options);

Examples

TCP server

const aedes = require('aedes')();
const server = require('aedes-server-factory').createServer(aedes);

const port = 1883;

server.listen(port, function () {
  console.log('server started and listening on port ', port);
});

TCP server behind proxy

const aedes = require('aedes')();
const server = require('aedes-server-factory').createServer(aedes, {
  trustProxy: true,
});

const port = 1883;

server.listen(port, function () {
  console.log('server started and listening on port ', port);
});

HTTP server for WS

const aedes = require('aedes')();
const server = require('aedes-server-factory').createServer(aedes, {
  ws: true,
});
const port = 1883;

server.listen(port, function () {
  console.log('server started and listening on port ', port);
});