php - Custom RestT API DELETE Method Drupal8 -

have been digging drupal 8 have not found documentation. trying create custom rest api in routes. done post , delete method bothering. want send email address drupal , delete in database first approach using similar use in post

routing.yml

iom_ppsync.userdelete:   path: '/delete/user'   defaults: { _controller: '\drupal\iom_ppsync\controller\ppsynccontroller::syncuserdelete' }   methods:  [delete]   requirements:   _access: 'true'   options:     no_cache: true 

contoller.php

use drupal\core\controller\controllerbase; use symfony\component\httpfoundation\request; use symfony\component\httpfoundation\jsonresponse;  class ppsynccontroller extends controllerbase {    public function syncuserdelete(request $request) {    $response = json_decode($request->getcontent(), true);    return new jsonresponse($response);   }  } 

but request object doesnt returns thing in post request has similar code. m hitting url using poster , sending content-type = application/json , data = {"email":"test@gmail.com"}

or should use dynamic routes in case $request object not of use using dynamic parameter argument in method

routing.yml

iom_ppsync.userdelete:   path: '/delete/{admin_user}'   defaults: { _controller: '\drupal\iom_ppsync\controller\ppsynccontroller::syncuserdelete' }   methods:  [delete]   requirements:     _access: 'true'   options:     no_cache: true     parameters:       admin_user:         type: user:mail 

controller.php

 public function syncuserdelete(request $request, $admin = null) {  } 

but not rest api call then. suggestons approach should use. or there workaround