Can the Photon listen to SparkJS events published from a web app?

Troubleshooting
1

Hi folks,

I have a question in regards to the photon and sparkJS events.

Should the Photon respond to an event fired from a web app?

Currently I have a button on my breadboard that publishes an event like so:

// photon

button.on(“press”, function() {
  spark.publishEvent('Foo', 'bah');
});

In my expressJS app I have a listener like so:

// web app

spark.onEvent('Foo', function(data) {
  console.log("Event: " + data.data);
});

This is great and works as expected - but is it possible to publish an event from the web app back to the photon ?

I had assumed something like the following would work:

// photon

button.on(“press”, function() {
  spark.publishEvent('Foo', 'bah');
});

spark.onEvent(‘Baz’, function(data) {
  console.log("Event: " + data.data);
});

and …

// web app

spark.onEvent('Foo', function(data) {
  console.log("Event: " + data.data);
});

spark.publishEvent(‘Baz’, ‘qux’);

I can see all the events being logged in Dashboard - however I don’t seem to have any reaction from the Photon when Baz is published - I’ve tried all getEventStream options and onEvent.

I have also raised an issue in the SparkJS repo.

2

Yes you can - by simply using the above examples. The issues I was having was just that events were first before the device was ready. derp.

You can see a working example here.