I am working on a Windows Phone development project (wp8/wp8.1) and need to grab the user's Exchange/Office 365 calendar information. My quick research found the EWS API and Office 365 API preview cannot be used in Windows Phone projects.
Does anyone know any approach/API that I can use to make the oAuth authentication and data retrieving code easier?
Thank you.
Depending on what you're trying to do, you can either use the calendar object directly which can read info from the phone calendars : http://msdn.microsoft.com/en-us/library/windowsphone/develop/hh286421(v=vs.105).aspx this works, but you don't have any access to attachments for example and there's few others limitations.
Or if you target 8.1 : http://www.cloudidentity.com/blog/2014/04/16/calling-office365-api-from-a-windows-phone-8-1-app/
Or you can use the Exchange Web Services in SOAP or POX like you would do if developing for another platform. I can't post the link, but the reference is on the msdn.
Good luck with exchange development, it's quite a nightmare :)
