Return data from action to component

@Rashe wrote:

I use highcharts and I wanted to load data on legend change. so I use on click event in component, than I send action to controller where I get data. And now I need to send it back, to user this.setData(BACKDATA); function in component. I do not want to refresh the chart, only redraw it. Or maybe it's better to get data from component?

Component:

 events: {
            legendItemClick: function () {
              let chart = this;
              self.triggerAction({
                action:'changeMetric',
                actionContext: chart.name
              });
              this.setData(BACKDATA);
            }

Controller:

changeMetric(val){
let params = {Metric: "active_time"};
let promise = getStoreData(this.get('store'), 'comparetimeframe', params);
}

Thanks

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