probe file with a "gauge"

[pierrots]

in the "gauge" settings to sync with the probe file
"monitor": {
"probeClass": "File",
"hostName": "alpine320",
"appName": "MonitorDashboard",
"appInstance": "1",
"probeId": "e96de244-d8d9-984f-db65-4ebc36688b5c",
"initParams": {
"path": "fileprobe.txt",
},

in the log viewer i can see that the value of text change
11:54:34.878 [info] Connection.2.emit
2015-07-10T09:54:34.878Z
{
"0": "probe:change:29674ed6-44a1-bdfc-f39e-55d624039212",
"1": {
"text": "75\n",
"error": {}
}
}
12:08:06.909 [info] Connection.2.emit
2015-07-10T10:08:06.909Z
{
"0": "probe:change:55ed4e02-34b7-d017-4869-c8ce4c3e4d7b",
"1": {
"text": "85\n",
"error": {}
}
}

how i configure "Data series" in the "gauge" component to get the value of var "text"
thanks

---

edit 👍
i try a another approach ,
in the 'onInit' of the component Gauge
i put this lines

var monitorProbe = new Monitor({
hostName: 'alpine320',
appName: 'MonitorDashboard',
probeClass: 'File',
initParams: {
pollInterval: 10000 ,
path: 'fileprobe.txt' ,
tail : false
},
});

monitorProbe.on('change', function() {
var data = monitorProbe.get('text') ;
alert (parseInt(data));
}) ;

monitorProbe.connect(function(error) {
console.log("Connected") ;
}) ;

the variable data display the content of my file fileprobe.text
I don't find how declare my component Gauge for place data into the Gauge data series when the OnChange is triggered.
a little help please will be the welcome (i am not a devellopper confirmed) it is for my home server .

[angchoo]

why I got this message?

{"msg":"Error instantiating probe File","error":"File probe has not been enabled on this server."}