What is the differences between Office 365 APIs and EWS

Question

What are the differences between Office 365 APIs and EWS (Exchange Web Services) ?

When do I use one or another?

score 14 · Accepted Answer · edited Aug 14 '15 at 13:45

14

Office365 API only works for Office365, while EWS works for any Exchange server from Exchange2007 up (including Office365). Other than that:

EWS is SOAP, Office365 API REST
EWS has a very nice/easy to use managed wrapper for .NET/Java
EWS has way more features - similar to using an Exchange client for Office365 compared to the webinterface. Things like Tasks are not in the Office365 API afaik.

edited Aug 14 '15 at 13:45

Jan Doggen

answered Aug 14 '15 at 09:51

kat0r

1

And EWS allows you to impersonate another user which is not possible with the Offfice REST API. – Jakob Christensen Aug 16 '15 at 00:15

1 Answers1