Created a common proptype Playlist

src/components/List/index.js

@@ -8,6 +8,7 @@ import MaterialList, {
     ListSubheader
 } from 'material-ui/List';
 import { PlaylistPlay } from 'material-ui-icons';
+import { PLAYLIST_PROPTYPE } from '../../utils/constants';
 
 const styles = theme => ({
     root: {
@@ -45,7 +46,7 @@ const List = props => {
 };
 
 List.propTypes = {
-    items: PropTypes.array.isRequired,
+    items: PropTypes.arrayOf(PLAYLIST_PROPTYPE).isRequired,
     subheader: PropTypes.string,
     classes: PropTypes.object
 };

src/components/MyPlaylists/index.js

@@ -22,6 +22,8 @@ class MyPlaylists extends PureComponent {
         const { myPlaylists: { playlists } } = this.props;
         const ListOfMyPlaylists = <List items={playlists} />;
 
+        console.log('playlists', playlists);
+
         return <div id="myPlaylists">{ListOfMyPlaylists}</div>;
     }
 }

src/utils/constants.js

@@ -0,0 +1,18 @@
+import PropTypes from 'prop-types';
+
+export const PLAYLIST_PROPTYPE = PropTypes.shape({
+    id: PropTypes.string.isRequired,
+    href: PropTypes.string.isRequired,
+    images: PropTypes.array.isRequired,
+    name: PropTypes.string.isRequired,
+    tracks: PropTypes.object.isRequired,
+    type: PropTypes.string.isRequired,
+    owner: PropTypes.shape({
+        id: PropTypes.string.isRequired,
+        type: PropTypes.string.isRequired
+    }).isRequired,
+    external_urls: PropTypes.shape({
+        spotify: PropTypes.string
+    }).isRequired,
+    public: PropTypes.bool
+});