Symfony 4. Parameters for custom service

Question

I've created a service MailService. Where is the right place for the service configuration? Is it the file services.yml? If I write

App\Service\MailService:
      someparam: somevalue

I get the error message The configuration key someparam is unsupported for definition App\Service\MailService. How to configure the service properly? How to read the params within my service?

class MailService
{
    public function __construct()
    {
    }

}

Please insert MailService source code to your question

Krzysztof Raciniewski
– Krzysztof Raciniewski

2019-01-29 10:03:39 +00:00
Commented Jan 29, 2019 at 10:03 — Krzysztof Raciniewski
– Krzysztof Raciniewski, Commented Jan 29, 2019 at 10:03
I have inserted

olek07
– olek07

2019-01-29 10:25:18 +00:00
Commented Jan 29, 2019 at 10:25 — olek07
– olek07, Commented Jan 29, 2019 at 10:25

Krzysztof Raciniewski · Accepted Answer · 2020-04-22 08:34:07Z

2

You can pass some data by constructor parameters and correct service configuration:

Service class:

class MailService
{
    private $adminEmail;

    private $adminName;

    public function __construct($adminEmail, $adminName)
    {
        $this->adminEmail = $adminEmail;
        $this->adminName = $adminName;
    }

}

Services configuration:

App\Service\MailService:
    arguments:
        $adminEmail: '[email protected]'
        $adminName: 'Admin Name'

Read more about Dependency Injection and autowiring in Symfony 4 projects

edited Apr 22, 2020 at 8:34

answered Jan 29, 2019 at 10:37

Krzysztof Raciniewski

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2 Comments

olek07 Over a year ago

Thank you! I've read, I can do so: parameters: adminEmail: someValue App\Service\MailService: arguments: ['%adminEmail%'] For what do I need the section in parameters? What is the advantage?

Krzysztof Raciniewski Over a year ago

All about parameters in Symfony you can read in documentation: symfony.com/doc/current/best_practices/… You can use parameters to define configuration options which can change. For example: default language or path to your private JWT key... Look above at the picture I added

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