Implementation for Node-RED of the popular Socket.IO.
from original project node-red-contrib-socketio, forked from node-red-contrib-socketio-javis86 to include CORS support.
Note: This node-red library is not functionally compatable with the above mentioned packages. The socketio - in and socketio - out node pass an array object for socketio arguments (the previous libraries only supported a single argument). Additionally, the socket - in node will return an optional msg.callback function if the client requested an acknowledge. It is the responsibility of your node-red flows to respond to this acknowledgement by calling the msg.callback function.
To install node-red-contrib-socketio use this command
npm i node-red-contrib-socketio-ack
The Socket.IO implementation is made with
- 1 configuration Node that holds the server definitions and the user can decide to bind the SocketIO server on the Node-RED port or bind it to another port
- 1 input node where the user adds all the
topics in which they are interested - 1 output node that sends the data received into
msg.payload - 1 node to join a Socket IO room
- 1 node to leave a Socket IO room
To see an example usage go to Example Chat App
MIT
Thank to:
- @nexflo for translating the comments in English and for pre-sending control data
- @bimalyn-IBM for implementig rooms
- @essuraj for implementig rooms listing node
- @cazellap for pushong adding compatibility to socketIO 3.0
- @javis86 individual contributor for fixing node-red hangs when deploy flows
- @javis86 for adding CORS support