symfony 4 rest api nelmio 3.2 code example

Example: symfony 4.4 rest api

fos_user.yml 
    fos_user:
      db_driver: orm # other valid values are 'mongodb' and 'couchdb'
      firewall_name: main
      user_class: App\Entity\User
      from_email:
        address: '[email protected]' # for example your email
        sender_name: '[email protected]' # for example your email