In Drupal 7, if I wanted to get the node id of the currently displayed node (e.g. node/145) I could get it with the arg() function. In this case, arg(1) would return 145.

How can I achieve the same in Drupal 8?

6 Answers 6


The parameter will have been upcasted from nid to full node object by the time you get access to it, so:

$node = \Drupal::routeMatch()->getParameter('node');
if ($node instanceof \Drupal\node\NodeInterface) {
  // You can get nid and anything else you need from the node object.
  $nid = $node->id();

See the change record for more information.

  • 12
    I just want to add you have to careful with this - I just got stung where \Drupal::routeMatch()->getParameter('node'); will return an array of 1 item (the node id) on node revision delete pages, so if you calling a method on what you assume to be an object you will get a fatal error like "Fatal error: Call to a member function getType() on string".
    – Jeff Burnz
    Aug 10, 2016 at 1:13
  • How can I get parameter, if I visited /taxonomy/term/{tid}?
    – AshwinP
    Mar 27, 2017 at 12:40
  • 1
    Is this a functional replacement for menu_get_object? May 2, 2018 at 17:09
  • 1
    @AshwinP The parameter is whatever you write inside {} in your route. For taxonomy terms the route paramater is called taxonomy_term, route definition /taxonomy/term/{taxonomy_term}. Here you can get it like this, \Drupal::routeMatch()->getParameter('taxonomy_term').
    – user72672
    Aug 22, 2019 at 8:40
  • 1
    This code isn't working for unpublished node when the user doesn't have the permission to see it. This code $node = \Drupal::requestStack()->getCurrentRequest()->get('node'); will correctly load the node.
    – tostinni
    Oct 30, 2019 at 10:08

It is correct to use \Drupal::routeMatch()->getParameter('node'). If you just need the node ID, you can use \Drupal::routeMatch()->getRawParameter('node').


Note on the node preview page, the following doesn't work:

$node = \Drupal::routeMatch()->getParameter('node');
$nid = $node->id();

For the node preview page, you have to load the node this way:

$node = \Drupal::routeMatch()->getParameter('node_preview');
$nid = $node->id();

How to load node object in node preview page?


if you are using or creating custom block then you have to follow this code to get current url node id.

// add libraries
use Drupal\Core\Cache\Cache;  

// code to get nid

$node = \Drupal::routeMatch()->getParameter('node');
  $node->id()  // get current node id (current url node id)

// for cache

public function getCacheTags() {
  //With this when your node change your block will rebuild
  if ($node = \Drupal::routeMatch()->getParameter('node')) {
  //if there is node add its cachetag
    return Cache::mergeTags(parent::getCacheTags(), array('node:' . $node->id()));
  } else {
    //Return default tags instead.
    return parent::getCacheTags();

public function getCacheContexts() {
  //if you depends on \Drupal::routeMatch()
  //you must set context of this block with 'route' context tag.
  //Every new route this block will rebuild
  return Cache::mergeContexts(parent::getCacheContexts(), array('route'));
  • This answer is 100% incorrect. Do not do this. Dec 25, 2022 at 5:26

By using Service,

    use Drupal\Core\Routing\RouteMatchInterface;

 * Provides a 'UtilitiesDataService' service.
class MyClass {

   * The route match.
   * @var \Drupal\Core\Routing\RouteMatchInterface
  protected $routeMatch;

   * Constructs a new service.
   * @param \Drupal\Core\Routing\RouteMatchInterface $route_match
   *   The route match.
  public function __construct(RouteMatchInterface $route_match) {

    $this->routeMatch = $route_match;

  public function getNodeId(){
    $nid = $this->routeMatch->getParameter('node')->id();

In services.yml file,

    class: Drupal\my_module\MyClass
    arguments: ['@current_route_match']
  • This is not "by dependency injection" - this is the creation of a new service. You're going to write a new service just to wrap one method of the existing current_route_match service? This is just wrong. Use @Clive's answer, which accesses the current_route_match service directly.
    – anonymous
    Oct 1, 2021 at 20:35
  • 1
    I think it is correct. A similar example is also in change record link Clive has provided. The example Sneha has provided is better than a static call others have provided. Jul 5, 2022 at 10:01
  • 1
    Procedural code would still need to make a static call to \Drupal. In this case, using the service defined in this answer or the current_route_match service doesn't make any difference, which means the static call isn't removed.
    – apaderno
    Dec 25, 2022 at 9:44
  • 1
    Agree with @apade. This isn't providing any benefit over making the call to the CurrentRouteMatch class.
    – welly
    Jun 14, 2023 at 13:21

Blocks are context aware and you should be using them. This will allow using the blocks in places where the route itself doesn't have a node but some subsystem provides the context anyways.

Example from core:

 * Provides a 'Node Context Test' block.
 * @Block(
 *   id = "node_block_test_context",
 *   label = @Translation("Node Context Test"),
 *   context_definitions = {
 *     "node" = @ContextDefinition("entity:node", label = @Translation("Node"))
 *   }
 * )
class NodeContextTestBlock extends BlockBase {

  public function build() {
    /** @var \Drupal\node\NodeInterface $node */
    $node = $this->getContextValue('node');

You can also see how easy it is to get the node. The test this block is used for is instructional: it tests whether the block appears on the preview page. This is not doable with the route match approach as the /node/preview/{node_preview}/{view_mode_id} route doesn't contain a node at all.

This will also make the node context required so there's no need to check whether there is a node at all. It's possible to make the node optional, of course:

 *     "node" = @ContextDefinition("entity:node", label = @Translation("Node"), required = FALSE)

the order of options after the first argument does not matter.

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