services.yaml

parameters:
  app.api_osm_base_url: 'https://nominatim.openstreetmap.org'

services:
    #...

    # add more service definitions when explicit configuration is needed
    # please note that last definitions always *replace* previous ones
    App\Geocoding\OsmGeocoding:
      arguments:
        $baseUrl: '%app.api_osm_base_url%'