Contains filter on Microsoft Graph query not working
I'm trying to user the contains filter on a /users query, like this for example: https://graph.microsoft.com/v1.0/users?$filter=contains(displayName, 'Garth')
However, this results in a BadRequest response saying "An unknown function with name 'contains' was found. This may also be a key lookup on a navigation property, which is not allowed."
According to the OData 4.0 specs, the contains filter should be available though. Is there a way to use a contains filter on a list of users?
Answer
The contains function is not available for users. startsWith is available though.
e.g. https://graph.microsoft.com/v1.0/users?$filter=startswith(displayName,'Garth').