muser-8.x-1.x-dev/modules/custom/muser_project/muser_project.routing.yml

muser_project.action_activate_project:
  path: '/round/activate/{entity_id}'
  defaults:
    _controller: '\Drupal\muser_project\Controller\ActionLinkController::activate'
  requirements:
    _muser_project_activate_access: 'TRUE'
    _format: 'html'
    _csrf_token: 'TRUE'

muser_project.action_inactivate_project:
  path: '/round/inactivate/{entity_id}'
  defaults:
    _controller: '\Drupal\muser_project\Controller\ActionLinkController::inactivate'
  requirements:
    _muser_project_activate_access: 'TRUE'
    _format: 'html'
    _csrf_token: 'TRUE'

muser_project.update_flagging_status:
  path: '/muser/application/update-status/{flagging}'
  defaults:
    _form: '\Drupal\muser_project\Form\UpdateFlaggingStatus'
    _title: 'Change status'
  requirements:
    _update_flagging_status_access_check: 'TRUE'
  options:
    parameters:
      flagging:
        type: entity:flagging
muser_project.accept_contract:
  path: '/muser/application/accept-contract/{flagging}'
  defaults:
    _title: 'Accept contract'
    _form: 'Drupal\muser_project\Form\AcceptContractForm'
  requirements:
    _accept_contract_access_check: 'TRUE'
  options:
    parameters:
      flagging:
        type: entity:flagging