Our client is running CRM and SharePoint and they would like to upload attachments from CRM into SharePoint 2013 Online. I started searching the web for some help and I came to this Microsoft page. It gives an example how to upload files via REST Api and jQuery. However, I would like to know if that is possible to do it using c#? Our client insists that it should be c# code. Can anyone guide me to some examples?
If I have to use the REST Api, can someone show me how to use it with C#