How to reference mailer component of symfony 4.3 with FOSUserBundle

Question

I would like to send my FOSUserBundle emails via the Symfony's new mailer component.

Given these instructions, I need to create a service that implements the FOSUserBundle MailerInterface. Thus I created a service and implemented the methods.

<?php


namespace App\Service;

// some use statements 

class FOSUserSendgridMailer implements MailerInterface
{...

Now I want to reference this new service in the fos_user_yaml by:

fos_user:
  db_driver: orm # other valid values are 'mongodb' and 'couchdb'
  firewall_name: main
  service:
    mailer: App\Service\FOSUserSendgridMailer

I then get an error The service "fos_user.listener.email_confirmation" has a dependency on a non-existent service "App\Service\FOSUserSendgridMailer".

Autowire and autoconfigure are both set to true in services.yaml.

How do I reference my new service correctly?

Answer 1

You need to define it as a service in services.yaml like this:

App\Service\FOSUserSendgridMailer:
    class: App\Service\FOSUserSendgridMailer