On-Q

MHub hold-and-release tool. Listens to messages on a queue, lists them and sends them on another node on your cue.

See it working at http://firstlegoleague.github.io/on-q. It listens to your localhost.

Usage

For detailed, walk-through instructions, see below

• Adjust the settings in the settings dialog by pressing the gear icon.
• Point to the correct mhub server and nodes
• Configure your mhub server to route messages you want to cue to the input node for On-Q.
• Configure your mhub server to route messages from the output node for On-Q to the destinations you desire.

As an alternative for setting up the configuration from the user interface, you can also modify the config.js file before launching the application for the first time.

Example mhub configuration (server.conf.json)

Example for use in FIRST LEGO League National Finals

{
	"port": 13900,
	"nodes": ["default", "test", "onq-in", "onq-out", "overlay", "scoring"],
	"bindings": [
		{ "from": "scoring", "to": "onq-in", "pattern": "*" },
		{ "from": "onq-out", "to": "overlay", "pattern": "*" }
	]
}

For more information see the MHub documentation

Example setup walk-through

• change server.conf.json in your mserver as per the above
• start mserver by typing mserver
• go to http://firstlegoleague.github.io/on-q the top bar should be blue, indicating it is connected
• if the top bar is grey, there is a connection error. Check the settings (gear icon). It should be like:
  • host: ws://localhost:13900 (this should match the port in your mserver configuration)
  • input node: onq-in (this should match the nodes in your mserver configuration)
  • output node: onq-out (this should match the nodes in your mserver configuration)

capturing messages

• send any message to the onq-in node. For example by typing in the command line: mclient -n onq-in -t test -d '["hello","there"]'
• note the message appear in the interface. Note that topics are grouped in tabs. In this case test.
• press forward to forward the message to the onq-out node. Note that it appears in the mserver log

ad hoc publishing

• create a new message by pressing the (+) button

• enter a topic, like test

• enter some data, like

    - hello
    - world
  

• press ok

The message is added. Note that topics are grouped in tabs. You can now forward the message by pressing forward. It should be displayed in the mserver log

Local installation

• install nodejs from https://nodejs.org/
• open a command window (from the start menu, type cmd and press enter)
• open the folder where you downloaded on-q (in the command window)
• type npm install
• type npm start
• you can now open the application by navigating to http://localhost:1393