Make Minor Modifications to SageOne API Class

We have had a developer build a class for the Sage One API. Currently it requires a user sign in for each and every API request. We need a developer to modify the class to include a method to request a 'refresh token' continuously, to avoid needing a user to login each and every time a user makes a request. I envisage that a solution would be something like: - Store the Token in DB, before expiry run a refresh token request and store in DB. - If token has expired for any reason and a login is required, email a link to the admin to login and save a token. You can fin details of the API here. [login to view URL] In your proposal please state that you have looked at the above URL and what your plan is to implement the toke refresh. I can supply the current class on request.