Magento 2 How to get category by url_key - php

Question

I try to get a category in Magento 2.0 by it url_key.
Now I've got :
$objectManager = \Magento\Framework\App\ObjectManager::getInstance();
$categoryFactory = $objectManager->create('Magento\Catalog\Model\CategoryFactory');
$category = $categoryFactory->create()
->addAttributeToFilter('url_key','my_category_url_key');
It returns me this error :
Error filtering template: Invalid method
Magento\Catalog\Model\Category\Interceptor::addAttributeToFilter(Array
( [0] => url_key [1] => my_category_url_key ) )
Thanks.

Answer 1

/**
* #var \Magento\Catalog\Model\CategoryFactory
****** inject in constructor ******
*/
protected $categoryFactory;
---------
---------
---------
$categories = $this->categoryFactory->create()
->getCollection()
->addAttributeToFilter('url_key','devops')
->addAttributeToSelect(['entity_id']);
echo "<pre>";
print_r($categories->getFirstItem()->getEntityId());

Answer 2

I know this is an old question, but in case anybody wonders...
All answers here use the ObjectManager. That's bad practice. The correct way to implement this, is as follows:
namespace Vendor\Module\Model;
use Magento\Catalog\Model\CategoryFactory;
class MyClass {
private $categoryFactory;
public function __construct(
CategoryFactory $categoryFactory
} {
$this->categoryFactory = $categoryFactory;
}
public function MyFunction() {
$categoryFactory = $this->categoryFactory->create();
$category = $categoryFactory->loadByAttribute('url_key', 'my_category_key');
$categoryId = $category->getId(); // E.g. if you want the ID.
}
In this example, category will contain the object of the category with URL-key 'my_category_key'.

Answer 3

addAttributeToFilter is a method of collections.
You should execute in on a category collection, not on a category instance.

Answer 4

Try this below code, i hope you will get your result.
<?php
$objectManagerr = \Magento\Framework\App\ObjectManager::getInstance();
$categoryFactory = $objectManagerr->create('Magento\Catalog\Model\ResourceModel\Category\CollectionFactory');
$categoryy = $categoryFactory->create()
->addAttributeToFilter('url_key','your_category_url_key')
->addAttributeToSelect('*');
foreach ($categoryy as $productt){
echo $productt->getName().'<br>';
echo $productt->getId();
}
?>

Answer 5

Based on your code, you missed the correct method in order to get a category via url_key.
Right now we can use method loadByAttribute, so you code should be something like this:
$objectManager = \Magento\Framework\App\ObjectManager::getInstance();
$categoryFactory = $objectManager->create('Magento\Catalog\Model\CategoryFactory');
$category = $categoryFactory->create()->loadByAttribute('url_key','my_category_url_key');