how to add data from mongodb database to highchart-ng - angularjs

Question

This is the highchart code in angular controller
I am using charts for the first time in angularjs.I want to show data from my mongodb database like on x-axis all the names of tasks and on y-axis the total time required by that particular task to complete i.e- Total Duration.
I have added static data for the html to look like the attached image.
I am developing a project using MEAN Stack.I want to how know how do i add the data i get from database to highcharts.
This is how the output should look without statically giving data:
var tasks = ['Task1','Task2','Task3' ]
var res = [26,61,1]
$scope.chartConfig = {
chart: {
type: 'column'
},
title: {
text: 'Task Duration'
},
xAxis: {
categories: tasks,
crosshair: true
},
yAxis: {
min: 0,
title: {
text: 'Task Duration (Hrs)'
}
},
tooltip: {
headerFormat: '<span style="font-size:10px">{point.key}</span>
<table>',
pointFormat: '<tr><td style="color:{series.color};padding:0">
{series.name}: </td>' +
'<td style="padding:0"><b>{point.y:.1f} mm</b></td></tr>',
footerFormat: '</table>',
shared: true,
useHTML: true
},
plotOptions: {
column: {
pointPadding: 0.2,
borderWidth: 0
}
},
series: [{
name: 'Tasks',
data: res
}]
}