WOPI implementation requirements for Office Online integration¶
A WOPI host does not need to implement every WOPI operation. WOPI hosts express their capabilities using properties in CheckFileInfo, such as SupportsLocks. In addition, WOPI actions specify the WOPI operations that must be supported in order to use that action, in the form of Action requirements.
However, practically speaking, there is a minimum set of operations required in order to support the two major Office Online WOPI scenarios - viewing and editing.
In order to support viewing documents using Office Online, WOPI hosts must implement: