Add If-Modified-Since optional parameter to Xero Projects APIs
We are trying to sync customer's Tasks across Xero Projects, currently we have to poll for all Tasks on each Project. Some customers are using 200+ 'active' (state= INPROGRESS) projects, however they are only adding 5-10 Tasks a day spread across these projects.
If we were able to query the /projects endpoint with a 'If-Modified-Since' parameter (or header) and the result only contained projects either updated direct or those that had associated Tasks added/edited, then we would only need to call /projects/:id/tasks for those ProjectId's, likewise if this endpoint also could be queried with
If-Modified-Since then only those new Tasks will be returned.
This would greatly reduce the number of API calls made each polling event (and keep within our current rate limits)
Alternatively, could support /tasks to be returned across all Projects (with projectId as a field) still with the 'If-Modified-Since' support