better handling leaderboard api failure

src/components/leaderboard/view/leaderboardView.js

@@ -9,6 +9,7 @@ import { FilterBar } from '../../filterBar';
 import FILTER_OPTIONS, { VALUE } from '../../../constants/options/leaderboard';
 // Styles
 import styles from './leaderboardStyles';
+import EmptyScreenView from '../../basicUIElements/view/emptyScreen/emptyScreenView';
 
 class LeaderboardView extends PureComponent {
   /* Props
@@ -40,6 +41,11 @@ class LeaderboardView extends PureComponent {
     );
   };
 
+  _renderEmptyView = () => {
+    const { refreshing } = this.props;
+    return <>{refreshing ? <ListPlaceHolder /> : <EmptyScreenView />}</>;
+  };
+
   render() {
     const { users, intl, fetchLeaderBoard, refreshing, selectedIndex } = this.props;
     return (
@@ -70,7 +76,7 @@ class LeaderboardView extends PureComponent {
             refreshing={refreshing}
             keyExtractor={(item) => get(item, '_id', Math.random()).toString()}
             removeClippedSubviews={false}
-            ListEmptyComponent={<ListPlaceHolder />}
+            ListEmptyComponent={this._renderEmptyView}
             onRefresh={() => fetchLeaderBoard()}
             renderItem={this._renderItem}
             contentContainerStyle={styles.listContentContainer}

src/providers/ecency/ecency.ts

@@ -8,6 +8,7 @@ import { parsePost } from '../../utils/postParser';
 import { extractMetadata, makeJsonMetadata } from '../../utils/editor';
 import { CommentHistoryItem, LatestMarketPrices, ReceivedVestingShare, Referral, ReferralStat } from './ecency.types';
 import { convertCommentHistory, convertLatestQuotes, convertReferral, convertReferralStat } from './converters';
+import { isArray } from 'lodash';
 
 
 
@@ -394,7 +395,12 @@ export const getFragments = async () => {
 export const getLeaderboard = async (duration:'day'|'week'|'month') => {
   try{
     const response = await ecencyApi.get(`private-api/leaderboard/${duration}`)
-    return response.data;
+
+    const rawData = response.data;
+    if(!rawData || !isArray(rawData)){
+      throw new Error('Invalid response returned');
+    }
+    return rawData;
   } catch(error) {
     bugsnagInstance.notify(error)
   }