task

Create a tiny server app based on Node.js. The app should implement simple organization user structure management operations. The following user roles should be supported: a. Administrator (top-most user) b. Boss (any user with at least 1 subordinate) c. Regular user (user without subordinates) Each user except the Administrator must have a boss (strictly one). The following REST API endpoints should be exposed:

1. Register user
2. Authenticate as a user
3. Return list of users, taking into account the following:

• administrator should see everyone
• boss should see herself and all subordinates (recursively)
• regular user can see only herself

4. Change user's boss (only boss can do that and only for her subordinates)

API

https://documenter.getpostman.com/view/10799551/2s8Z75UWBh#intro