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About

StreamDeckWS is a WebSocket proxy for Corsair Stream Deck.

Now you can send and receive messages for your Stream Deck from remote servers like Node-RED websocket plugin.

Not only you will receive key and other events in Node-RED, but you will also be able to build messages to change button title, image, etc.

Configuration

Simply put the address of the remote server as ws://remote_server (or wss://remote_server if you are using HTTPS/SSL). For Node-RED, it will likely be something like ws://192.168.10.100:1880/sd-demo or whatever websocket path you defined.

screen1

id can be used to identify each button. It can be found in the settings object of the payload to the remote server.

Do not set anything in Title if you want to be able to change title through the remote server

Node-RED

Let's build a sample Node-RED flow that returns a random image every time you push a button.

nodered1

Websocket node

First of all, drag a websocket in node and define a websocket endpoint, for example /sd-demo. Type should be set to Listen on and Send / Receive to payload.

JSON Parser

Then drag a JSON Parser so the input is converted into a JSON object.

Save context

context is a critical element from the request because it will be needed in any message we are sending back to the Stream Deck, so it's a good idea to put it aside for later.

Drag a Change node and configure it like so :

nodered2

That way when the payload is overwritten by subsequent nodes, you can always retrieve the context from the message.

Act on Key up only

The Stream Deck sends two messages for each press : Key down and Key up, in our case, let's say we're only interested in Key up.

Drag a Switch node and configure it like so :

nodered3

Get some image from The Internet

Next we will use a node that is not standard with node red, you will have to install it from the Manage palette. The node you need is node-red-contrib-image-tools.

Then drag an Image node and set the following properties :

nodered4

Format the message back to Stream Deck

Drag a Change node and set msg.payload to the following expression

{
   "event":"setImage",
   "context":context,
   "payload":{
       "image":image
   }
}

Send the message back

Lastly, drag a websocket out node and make sure it is configured for the same endpoint as the websocket in node.

Testing

If you're lucky enough, when you push the button you assigned for the StreamDeckWS plugin with the correct URL to Node-RED, you should see an image replace the default icon, and be replaced every time you push it.

You can even go crazy if you'd like...

nodered5

Going further

Now, wouldn't it be cool if the image appeared initially when the key is displayed ?

Just add a Switch node parallel to the existing Key up node like this :

nodered6

This one must match the willAppear event :

nodered7

Anytime the key becomes visible it will fetch a new image

GIF

Eventually it is all going to be clean and tidy !

Wrapping up

With this module, you can extend Stream Deck with infinite possibillities, imagination is the limit !

Eventually your flows are gonna be clean and tidy like mine !

nodered8

Please share all the great things you are doing with Stream Deck WS !