Replace native map() and forEach() methods by lodash.

src/datasource-zabbix/dataProcessor.js

@@ -265,14 +265,14 @@ function findNearestLeft(series, point) {
 
 function timeShift(interval, range) {
   let shift = utils.parseTimeShiftInterval(interval) / 1000;
-  return range.map(time => {
+  return _.map(range, time => {
     return time - shift;
   });
 }
 
 function unShiftTimeSeries(interval, datapoints) {
   let unshift = utils.parseTimeShiftInterval(interval);
-  return datapoints.map(dp => {
+  return _.map(datapoints, dp => {
     return [
       dp[0],
       dp[1] + unshift

src/datasource-zabbix/datasource.js

@@ -137,6 +137,10 @@ class ZabbixAPIDatasource {
       return getHistoryPromise.then(timeseries_data => {
         return this.applyDataProcessingFunctions(timeseries_data, target);
       });
+    })
+    .catch(error => {
+      console.log(error);
+      return [];
     });
   }
 
@@ -393,7 +397,7 @@ class ZabbixAPIDatasource {
   // Replace template variables
   replaceTargetVariables(target, options) {
     let parts = ['group', 'host', 'application', 'item'];
-    parts.forEach(p => {
+    _.forEach(parts, p => {
       if (target[p] && target[p].filter) {
         target[p].filter = this.replaceTemplateVars(target[p].filter, options.scopedVars);
       }
@@ -401,7 +405,7 @@ class ZabbixAPIDatasource {
     target.textFilter = this.replaceTemplateVars(target.textFilter, options.scopedVars);
 
     _.forEach(target.functions, func => {
-      func.params = func.params.map(param => {
+      func.params = _.map(func.params, param => {
         if (typeof param === 'number') {
           return +this.templateSrv.replace(param.toString(), options.scopedVars);
         } else {

src/datasource-zabbix/zabbixAPI.service.js

@@ -189,7 +189,7 @@ function ZabbixAPIServiceFactory(alertSrv, zabbixAPICoreService) {
       .then(expandItems);
 
       function expandItems(items) {
-        items.forEach(item => {
+        _.forEach(items, item => {
           item.item = item.name;
           item.name = utils.expandItemName(item.item, item.key_);
           return item;

src/datasource-zabbix/zabbixAPICore.service.js

@@ -64,6 +64,9 @@ class ZabbixAPICoreService {
 
       // Success
       return response.data.result;
+    })
+    .catch(() => {
+      return Promise.reject(new ZabbixAPIError({data: "Connection Error"}));
     });
   }