[MNT-24575] Added documentation

docs/core/services/nodes-api.service.md

@@ -89,6 +89,15 @@ Accesses and manipulates ACS document nodes using their node IDs.
     -   _nodeId:_ `string` - ID of the target node
     -   _options:_ `{ includeSource?: boolean; } & NodesIncludeQuery & ContentPagingQuery` - Optional parameters supported by JS-API
     -   **Returns** [`Observable`](http://reactivex.io/documentation/observable.html)`<`[`Hold[]`](../../../lib/js-api/src/api/gs-core-rest-api/docs/Hold.md)`>` - List of assigned holds
+-   **initiateFolderSizeCalculation**(nodeId: `string`): [`Observable`](http://reactivex.io/documentation/observable.html)`<`[`JobIdBodyEntry`](../../../lib/js-api/src/api/content-rest-api/docs/JobIdBodyEntry.md)`>`<br/>
+    Initiate a new request to calculate folder size.
+    -   _nodeId:_ `string` - ID of the target node
+    -   **Returns** [`Observable`](http://reactivex.io/documentation/observable.html)`<`[`JobIdBodyEntry`](../../../lib/js-api/src/api/content-rest-api/docs/JobIdBodyEntry.md)`>` - Job id which can be used to track request status
+-   **getFolderSizeInfo**(nodeId: `string`, jobId: `string`): [`Observable`](http://reactivex.io/documentation/observable.html)`<`[`SizeDetailsEntry`](../../../lib/js-api/src/api/content-rest-api/docs/SizeDetailsEntry.md)`>`<br/>
+    Gets the size of a folder.
+    -   _nodeId:_ `string` - ID of the target node
+    -   _jobId:_ `string` - ID of the job started by the `initiateFolderSizeCalculation` request
+    -   **Returns** [`Observable`](http://reactivex.io/documentation/observable.html)`<`[`SizeDetailsEntry`](../../../lib/js-api/src/api/content-rest-api/docs/SizeDetailsEntry.md)`>` - Details of the folder
 
 ## Details
 

lib/js-api/src/api/content-rest-api/docs/JobIdBody.md

@@ -0,0 +1,7 @@
+# JobIdBody
+
+## Properties
+
+ Name      | Type   | Description                                                                           | Notes             
+-----------|--------|---------------------------------------------------------------------------------------|-------------------
+ **jobId** | string | Id of the job that can be used to track the status of folder size calculation request | [default to null] 

lib/js-api/src/api/content-rest-api/docs/JobIdBodyEntry.md

@@ -0,0 +1,7 @@
+# JobIdBodyEntry
+
+**Properties**
+
+| Name      | Type                      |
+|-----------|---------------------------|
+| **entry** | [JobIdBody](JobIdBody.md) |

lib/js-api/src/api/content-rest-api/docs/SizeDetails.md

@@ -0,0 +1,12 @@
+# Size Details
+
+## Properties
+
+ Name              | Type   | Description                                                                 | Notes             
+-------------------|--------|-----------------------------------------------------------------------------|-------------------
+ **id**            | string |                                                                             | [default to null] 
+ **sizeInBytes**   | string | Size of the folder in bytes                                                 | [default to null] 
+ **calculatedAt**  | string | Timestamp of when the folder size was calculated                            | [default to null] 
+ **numberOfFiles** | number | Number of files present within the folder                                   | [default to null] 
+ **status**        | string | Status of the request. Can be 'NOT-INITIATED', 'IN-PROGRESS' or 'COMPLETED' | [default to null] 
+ **jobId**         | string | The job ID which was used to track down the folder details                  | [default to null] 

lib/js-api/src/api/content-rest-api/docs/SizeDetailsEntry.md

@@ -0,0 +1,7 @@
+# SizeDetailsEntry
+
+**Properties**
+
+| Name      | Type                          |
+|-----------|-------------------------------|
+| **entry** | [SizeDetails](SizeDetails.md) |