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strong-pubsub-bridge

Create a bridge between a Client and a broker.

Installation

$ npm install strong-pubsub-bridge

Use

Use Bridge for the following:

  • Bridge connections to brokers
  • Inject logic inbetween client actions (publish / subscribe / etc) and brokers
  • Adapt a connection that speaks one protocol to a broker that requires another

TCP

Below is an example accepting a tcp connection, upgrading it to a strong-pubsub Connection, and creating a bridge to an MQTT broker.

// tcp server
tcpServer.on('connection', function(socket) {
  var bridge = new Bridge(
    // upgrade the tcp socket into a strong-pubsub-connection
    new Connection(socket),
    new Client({port: MOSQUITTO_PORT}, Adapter)
  );

  bridge.connect();
});

Primus

Here is an example that upgrades a primus Spark into a strong-pubsub Connection and creating a bridge to an MQTT broker.

// primus server
primus.on('connection', function(spark) {
  var bridge = new Bridge(
    new Connection(spark),
    new Client({port: MOSQUITTO_PORT}, Adapter)
  );

  bridge.connect();
});

Hooks

Below is an example using a hook to inject a function to be invoked before an action is performed by the bridge on behalf of a Connection.

bridge.before(action, function(ctx, next) {
  console.log('about to publish to');
  console.log(ctx.topic); // => "my topic"
  next();
});

API

See the API docs.

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  • JavaScript 100.0%