As we know drupal 8 use symphony, so module structure of drupal 8 is change and workflow functionality of doing thing also change. we can make Drupal 7 module procedure oriented but in drupal 8 module needs to follow object oriented MVC architecture.

In this tutorail we learn how can we create the node programmatically in drupal 8 with image upload using custom module.

Let say module name is "nodecreator"

1) To Create a module we need a file

name: Node Creater
type: module
description: Node created programmatically
package: Custom
core: 8.x

2) Now you can enable the module at "/admin/modules" path on your website.

3) Create a routing file nodecreator.routing.yml for menu path to call a controller function

    path: /add/nodecreate
        _controller: Drupal\nodecreator\Controller\PostController::newnode
        _permission: 'access content'

4) Create a controller file in module folder using this folder structure - "src/Controller/PostController.php" and add following content


namespace Drupal\nodecreator\Controller;

use \Drupal\node\Entity\Node;
use \Drupal\file\Entity\File;

class PostController {
	public function newnode() {
		$data = file_get_contents("path/data-folder/image.png");
		$file = file_save_data($data, "public://image.png", FILE_EXISTS_REPLACE);
		// Create node object and save it.
		$node = Node::create([
		  'type'=> 'article',
		  'title'=> 'Node By Email',
		  'body'=> 'This is just a content',
          'field_image'=> [
              'target_id' => $file->id(),
              'alt' => 'Sample',
              'title' => 'nodecreate Image'

		return array(
                '#title' => 'Node Creator',
                '#markup' => 'Node Created Successfully.',

5) Now open the path "/add/nodecreate" and your node will we created.


Note : That example is use for creating articles content with body and field_image field, if you not have that field or having different name, please change it else you will get error.