Hook up add instance group functionality.

src/api.js

@@ -4,6 +4,7 @@ const API_LOGOUT = `${API_ROOT}logout/`;
 const API_V2 = `${API_ROOT}v2/`;
 const API_CONFIG = `${API_V2}config/`;
 const API_ORGANIZATIONS = `${API_V2}organizations/`;
+const API_INSTANCE_GROUPS = `${API_V2}instance_groups/`;
 
 const LOGIN_CONTENT_TYPE = 'application/x-www-form-urlencoded';
 
@@ -68,6 +69,20 @@ class APIClient {
 
     return this.http.get(endpoint);
   }
+
+  getInstanceGroups (){
+    return this.http.get(API_INSTANCE_GROUPS);
+  }
+
+  createInstanceGroups (url, selected) {
+    if (selected.length > 0) {
+      selected.forEach(select => {
+        this.http.post(url, { id: select.id });
+      });
+    }
+    return false;
+  }
+
 }
 
 export default APIClient;