Store backend

API

/
- POST:
  - Register a new user with the provided token.
  - body
    - token: uuid
/me
- POST:
  - Log the login of the user.
  - Authorization header
    - _ token: uuid
/me/root
- PUT:
  - Set the root of user data.
  - body
    - root_id: uuid
  - Authorization header
    - _ token: uuid
- GET:
  - Get the root of user data.
  - Authorization header
    - _ token: uuid
  - response
    - uuid
/me/{id: string}
- POST:
  - Upload a new object with id.
  - body
    - data: string
  - Authorization header
    - _ token: uuid
- GET:
  - Retrieve an object with id.
  - Authorization header
    - _ token: uuid
  - response
    - string