Access Web Apps–the end?

We no longer recommend Access Services for new apps. This feature will be retired from Office 365. We will stop creation of new Access-based apps in SharePoint Online starting June 2017 and shut down any remaining apps by April 2018.

Add-ins for Access web apps

A friend of mine has recently tried to create add-in for Access web app (AWA). Here some links and tips, can be useful once you decide to do the same.
Create add-ins for Access web apps – step through the process
Latest Microsoft Office Developer Tools for Visual Studio 2015 - link to the latest Microsoft Office Developer Tools for Visual Studio 2015
JavaScript API for Office
Office UI Fabric
Office 365: Bind and manipulate data in a SharePoint Access app
Create JavaScript web apps using CORS to access Office 365 APIs

Have more links? Write me in comments