User & Permissions improvement plan - July 25 2017

We met to address the current state of loading a user, getting the user's permissions, all the users programs, facilities, etc.

We found that overall we have a lot of overlap in the current endpoints.

Current plan:

Order	Work	Ticket

Order	Work	Ticket
1	User's permission strings is under development in sprint 31, we want to schedule work in sprint 32 to use these in the UI	https://openlmis.atlassian.net/browse/OLMIS-2811
2	make a new users/{id}/facilities resource - it will include home and supervised facilities, current endpoint users/id/supervisedFacilties is to be phased out	https://openlmis.atlassian.net/browse/OLMIS-2885
3	change /user/{id}/programs to be home and supervised programs (we'll keep the exisiting forHomeFacility query param, and not change representation)	https://openlmis.atlassian.net/browse/OLMIS-2885
4	start using permissions strings in UI (see #1) phase out using the roleAssignments api call and the role assignments returned currently as apart of a user phase in using the result of this list, which has program and facility ids for each named right, and using the result of the #2 and #3 when we need a program or facility name (link based on ID)

After the above occurs we'd like to try to improve the /api/users resources performance by removing:

break /users/{id} to only include home facility id
remove role assignments from /users. Move managing the role assignments for a user to a new resource or sub-resource.
- might be difficult to do with JPA
- will require clients to have migrated to the aforemention strategy
- will require changes in the administrator screen to edit a user and his or her role assignments

call	size	ms
1 call to get the users role assignments (full objects)	2.67KB	1016
1 call to get the user (with home facility object and role assignment objects)	1.28KB	1013
2 calls to get the users programs	0.44KB	2050
4 calls to get user's supervised facilities	4.8KB	5400

call	size	ms
1 call to get permission strings	1.11KB	500ms (exp)
1 call to get user	TBD (0.25KB)	TBD (100ms?)
1 call to get users programs	0.220KB	250ms (exp)
1 call to get users facilities	1KB (exp)	500ms (exp)

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