Added support for ALM APIs

src/sharepoint/webs.ts

@@ -19,6 +19,33 @@ import { Features } from "./features";
 import { SharePointQueryableShareableWeb } from "./sharepointqueryableshareable";
 import { RelatedItemManger, RelatedItemManagerImpl } from "./relateditems";
 
+export enum AppOperation {
+    /**
+   * Install addin
+   */
+  Install = "Install",
+  /**
+   * Deploy the add-in
+   */
+  Deploy = "Deploy",
+  /**
+   * Upgrade addin
+   */
+  Upgrade = "Upgrade",
+  /**
+   * Retract addin
+   */
+  Retract = "Retract",
+  /**
+   * UnInstall addin
+   */
+  Uninstall = "Uninstall",
+  /**
+   * Remove addin
+   */
+  Remove = "Remove",
+}
+
 /**
  * Describes a collection of webs
  *
@@ -467,6 +494,54 @@ export class Web extends SharePointQueryableShareableWeb {
     public getStorageEntity(key: string): Promise<string> {
        return this.clone(Web, `getStorageEntity('${key}')`).get();
     }
+
+    /**
+     * Get all available apps from app catalog
+     */
+
+    public getAvailableApps(): Promise<string> {
+        return this.clone(Web, `tenantappcatalog/AvailableApps`).get();
+    }
+
+    /**
+     * Get details of specific app from the app catalog
+     * @param id - Specify the guid of the app
+     */
+
+    public getAppById(id: string): Promise<string> {
+        return this.clone(Web, `tenantappcatalog/AvailableApps/GetById('${id}')`).get();
+    }
+
+    /**
+     * Perform app operation on the app from app catalog
+     * @param id - Specify the guid of the app
+     * @param operation - Specify the type of operation you want to perform. 
+     * The Deploy, Retract and Remove operations will work in the context of tenant app catalog site only
+     */
+
+    public appOperation(id: string, operation: AppOperation): Promise<string> {
+        return this.clone(Web, `tenantappcatalog/AvailableApps/GetById('${id}')/${operation}`).postCore();
+    }
+
+    /**
+     * Uploads an app package. Not supported for batching
+     *
+     * @param url The name of the app.
+     * @param content The app package (eg: the .app or .sppkg file).
+     * @param shouldOverWrite Should an app with the same name in the same location be overwritten? (default: true)
+     * @returns The response.
+     */
+
+    public addApp(url: string, content: ArrayBuffer | Blob, shouldOverWrite = true): Promise<any> {
+        return this.clone(Web, `tenantappcatalog/add(overwrite=${shouldOverWrite},url='${url}')`)
+            .postCore({
+                body: content,
+            }).then((response) => {
+                return {
+                    data: response,
+                };
+            });
+    }
 }
 
 /**