IL.Get Employee Request by ID

This method searches and returns request to registration employees by id with status != New

According to requirements: 

• Legal entity can see only employee_requests that were made by this legal entity.
• NHS Admin can see all employee_requests

Specification

• id

Validate status

1. In case status='NEW' skip validation. Use Get new employee request by ID. 

Validate request

1. Verify the validity of access token
   1. in case error return 401
2. Check user scopes in order to perform this action (scope = 'employee_request:read')
   1. in case error return 403

WS logic for `client_type` = MSP, Pharmacy

1. Get legal_entity.id from '$.context'. Filter employee requests by legal_entity.id
   1. in case error return 404

WS logic for `client_type` = NHS_Admin

1. Search employee_request by id='$.id'