my CRUD test with nodejs and express, built on docker here you can create a user with different abilities: admin: can list all users and edit/delete their information and accounts, admin user can't be created while signing-up but an admin can change role of another admin operator: an operator can only change its own information users sign up with their first name, last name, email and password (their information validatoin will be checked with Yup package and will be stored in data base, their password also will be hashed to protect their security) to do every action you need to be signed-in (user validation is checked with JWT) after signing-up an email will be sent to user's email including a confirmation code to make sure that user entered its true mail (created with node mailer)