ews-javascript-api

EWS API for TypeScript/JavaScript - ported from OfficeDev/ews-managed-api - node, cordova, meteor, Ionic, Electron, Outlook Add-Ins. Maintained by gautamsi on GitHub, where it has earned 291 stars from the community.

It's actively developed around ews, ews-api, exchange-web-services, and is a solid reference for anyone building with these tools.