Creating a third party Sharepoint Client

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OData

authentication

tokens

, +

Our company recently acquired Office 365 Sharepoint Online and the employees have been tasked with managing their projects through the system.

Capturing tasks and time is terrible through the current interface which has led me to investigating creating a web interface which interacts with the API.

I am however having a problem with the authentication, there does not seem to be any simple API method that I can post to with a username and password, and receive an authentication token that I can then use for all further requests.

I might be missing the point of oData, could someone point me in the right direction?