Reverts PR #921 to fix #931 (#933)

* Revert "Fix heatmapLibrary"

This reverts commit 8e67c08c275ea611e1a8d193c6888a312b47cafb.

* Revert "Update API.md"

This reverts commit 2d55cedfdd67b5410261f677f17c2d0969485757.

* Revert "Added all google maps api libraries to api loader (#921)"

This reverts commit 1718a4a9415e1422752f3ae68c8b7119af6ca8db.

API.md

@@ -16,7 +16,6 @@ Example:
     key: API_KEY,
     language: 'ru',
     region: 'ru',
-    libraries:['places'],
     ...otherUrlParams,
   }}
 >
@@ -351,7 +350,7 @@ For more details see the [google documentation](https://developers.google.com/ma
 
 ### Heatmap Layer
 
-To use the heatmap layer, add `visualization` to the libraries property array on `bootstrapURLKeys` and provide the data & configuration for the heatmap in `heatmap` as props.
+To use the heatmap layer, add `heatmapLibrary={true}` to add the visualizations library, and provide the data&configuration for the heatmap in `heatmap` as props.
 
 The typescript interface for the heatmap prop is as follows:
 ```typescript
@@ -373,38 +372,20 @@ interface heatmapProp {
 
 ```javascript
 <GoogleMapReact
-  bootstrapURLKeys={{
-    key: [YOUR_KEY],
-    libraries:['visualization']
-  }}
-  zoom={zoom}
-  center={center}
-  heatmap={{data}}
->
-  {markers}
-</GoogleMapReact>
+    bootstrapURLKeys={{ key: [YOUR_KEY] }}
+    zoom={zoom}
+    center={center}
+    heatmapLibrary={true}
+    heatmap={{data}}
+  >
+    {markers}
+  </GoogleMapReact>
 ```
 
 #### Important Note
 
-If you have multiple `GoogleMapReact` components in project and you want to use heatmap layer provide `libraries:['visualization']` to `bootstrapURLKeys` so that the visualization library will be loaded with the google map api.
+If you have multiple `GoogleMapReact` components in project and you want to use heatmap layer so provide `heatmapLibrary={true}` for all `GoogleMapReact` components so component will load heatmap library at the beginning with google map api.
 
 ### Localizing the Map
 
 This is done by setting bootstrapURLKeys.[language](https://developers.google.com/maps/documentation/javascript/localization#Language) and bootstrapURLKeys.[region](https://developers.google.com/maps/documentation/javascript/localization#Region). Also notice that setting region to 'cn' is required when using the map from within China, see [google documentation](https://developers.google.com/maps/documentation/javascript/localization#GoogleMapsChina) for more info. Setting 'cn' will result in use of the specific API URL for China.
-
-
-### Libraries
-
-If you want to include additional libraries to load with the maps api, indicate them in the libraries property of the `bootstrapURLKeys` object.
-
-Example:
-```JSX
-<GoogleMapReact
-    bootstrapURLKeys={{
-      key: [YOUR_KEY],
-      libraries:['places', 'geometry', 'drawing', 'visualization']
-    }}
-    {markers}
-  </GoogleMapReact>
-```

CHANGELOG.md

@@ -1,7 +1,7 @@
 ## [2.1.0] - 2020-08-31
 
 - #921 Add support to libraries: places, visualization, places, and geomerty.
-And keeps support for previous heatmapLibrary prop to avoid breaking older usage.
+And keeps support for previous heatMapLibrary prop to avoid breaking older usage.
 
 ## [2.0.4] - 2020-07-30
 

src/loaders/google_map_loader.js

@@ -58,32 +58,12 @@ export default (bootstrapURLKeys, heatmapLibrary) => {
       }
     }
 
-    // Support for older version using heatmapLibrary option
-    if (heatmapLibrary) {
-      bootstrapURLKeys.libraries
-        ? bootstrapURLKeys.libraries.append('visualization')
-        : (bootstrapURLKeys.libraries = ['visualization']);
-      console.warn(
-        "heatmapLibrary will be deprecated in the future. Please use bootstrapURLKeys.libraries property instead (libraries=['visualization'])."
-      );
-    }
-
-    // clean unknown and remove duplicates
-    const googleMapsLibs = ['places', 'drawing', 'geometry', 'visualization'];
-    if (bootstrapURLKeys.libraries) {
-      bootstrapURLKeys.libraries = bootstrapURLKeys.libraries.filter(
-        (lib, i) =>
-          bootstrapURLKeys.libraries.indexOf(lib) === i &&
-          googleMapsLibs.includes(lib)
-      );
-    }
-
     const params = Object.keys(bootstrapURLKeys).reduce(
       (r, key) => `${r}&${key}=${bootstrapURLKeys[key]}`,
       ''
     );
 
-    const { libraries } = bootstrapURLKeys;
+    const libraries = heatmapLibrary ? '&libraries=visualization' : '';
 
     $script_(
       `${DEFAULT_URL}${API_PATH}${params}${libraries}`,