Magento2 How can get the Attributes based on the Attribute Set Id or Attribute Set Name

Question

In Magento2, How can get the all (product) Attributes based on the Attribute Set Id or Attribute Set Name in the Custom Product List Page.

Answer 1

Here is the Code:

    $attributeSetId = 20;//your_attributeSetId
    $attributeSet = $this->objectManager->create('Magento\Eav\Api\AttributeSetRepositoryInterface');
    $attributeSetRepository = $attributeSet->get($attributeSetId);
    $attribute_set_name = $attributeSetRepository->getAttributeSetName(); 
    $attributeGroupCollection = $this->objectManager->get ( 'Magento\Eav\Model\Entity\Attribute\Group' )->getCollection ();
    $attributeGroupCollection->addFieldToFilter ( 'attribute_group_name', $attribute_set_name ); 
    $attributeGroupCollection->addFieldToFilter ( 'attribute_set_id', $attributeSetId );
    $attributeGroupId = '';
    foreach ( $attributeGroupCollection as $attributeGroup ) {
        $attributeGroupId = $attributeGroup->getId ();
        break;
    }
    $attributeCollection = $this->objectManager->get ( 'Magento\Eav\Model\Entity\Attribute' )->getCollection ();
    $attributeCollection->setAttributeSetFilter ( $attributeSetId );
    $attributeCollection->setAttributeGroupFilter ( $attributeGroupId );

    echo "<pre>";
    print_r($attributeCollection->getData());

Answer 2

you can make use of the Magento\Catalog\Api\ProductAttributeManagementInterface

$attributeSetId = 20;//your_attributeSetId
$productAttributesManagement = $this->objectManager->create('Magento\Catalog\Api\ProductAttributeManagementInterface');
$productAttributes = $productAttributesManagement->getAttributes($attributeSetId);

Please note that you should not be using the object manager directly. This is just for demonstration