MS Office Outlook web add-in example script

Hello, We are doing a MS Office Outlook web add-in, but having some issues fetching the information we need. So we are looking for someone that have worked with this before, and preferly have an example script that we can take a look at. What we are trying to do, is within outlook on new appointments, we need to fetch details on the meeting "Title, location, startdate, enddate, organizer and attendees" So in short we need a super simple script, that does the following 1. show outlook add-in on new meetings and editing meetings 2. grab a few of the meetings details and display on the app 3. show a button that links to an external website, perferly using POST with a hidden form value of one of the meeting values.. Hope this makes sense. Thank you Kind regards, Anders