D365: Enable Rule for button with asynchronous API request using promise

Many times, we get requirement to show/hide a button based on certain condition for which we define Enable Rule in Ribbon Workbench.

If we need javaScript code for evaluation then we use Custom Enable Rule mentioning library, method to execute, passing PrimaryControl CRM parameter and additional parameters if necessary.

Sometimes, the evaluation is done real time(based on the logic written) and we return true/false based on which the button remains visible/hidden. At times, we need to make additional API request which is asynchronous in nature e.g. show/hide button based on security role and in this case the result of the method/operation doesn’t affect the visibility of the button.

In this post, we’ll see how we can use promise to fix this issue and the scenario that we’ll take is hide Delete button on Document subgrid if the logged in user doesn’t have “System Administrator” security role.

Since…