My organization currently uses Office365, and I am creating a Universal Windows Platform app that essentially needs to access the calendars of multiple accounts within the organization. I am currently using the Office365 Rest API, and already can successfully query a single account's calendar data, after getting an OAuth2.0 access token for a particular user.
After searching through multiple resources and existing Stackoverflow questions, I have tried the following with no luck to get multiple user account calendars without having to sign in to each account individually:
- Performing a GET request with the graph API from Microsoft Graph API
- Performing a GET request using navigation paths to users calendars using this method and other variations. (Returns 403 access denied error)
I also found a possible solution by using EWS Managed API, but I was unsure of its compatibility with UWP and our current Office 365 setup.
Lastly, I looked into building daemon or service apps, but this method seemed really unnecessary and possibly impossible with the current configuration of Azure. It requires asymmetric key crypt. set up within the system, and re-configuring the app as a whole within Azure.
Any help is appreciated.
[EDIT]: FYI all of the calendars have been made public, and can be viewed in the web client of Outlook.