Sample ERPNext Magento Connector

erpnext_magento.php

<?php
	
	// contributed by supplify.com
   	error_reporting(E_ALL);
	ini_set('display_errors', 1);
	require_once '../curl/Zebra_cURL.php';
	require_once '../app/Mage.php';
   	Mage::app();

	class action extends Zebra_cURL{

		function login(){
			
			// LOGIN: update your details here:
			$this->erpUrl = 'https://test.example.com/';
			$username = '[email protected]';
			$password = 'test-password';

			$this->api_resource = 'api/resource/';

			return $this->post(array(
		           $this->erpUrl.'api/method/login'  =>  array(
		               'usr'  =>  $username,
		               'pwd'  =>  $password,
		     )));
		}

		function getDocumentAll($docType,$limit_start,$limit_page_length,$fields){ // Get All data
			if($limit_page_length != '' ||  $limit_start != '' || count($fields) > 0){
				$fields = implode('","',$fields);
				$fields = '"'.$fields.'"';
				$param = '?';
				$param .= ($limit_page_length != '') ? 'limit_page_length='.$limit_page_length.'&' : '';
				$param .= ($limit_start != '') ? 'limit_start='.$limit_start.'&' : '';
				$param .= (count($fields) > 0) ? 'fields=['.$fields.']' : '';
			}else{
				$param = '';
			}
			// echo $param;exit;
			return $this->get(array(
		           $this->erpUrl.$this->api_resource.$docType.$param));
			// print_r($a);
		}

		function getDocumentById($docType,$id){ // Get All data
			return $this->get(array(
		           $this->erpUrl.$this->api_resource.$docType.'/'.$id));
		}

		function getDocumentFields($docType,$param){  // Get data filtered by fields $param in json format ex:- '["name"]'
			$this->get(array(
		           $this->erpUrl.$this->api_resource.$docType.'/?filters='.$param));
		}

		function getDocumentFilter($docType,$field,$operator,$value){  // Get data filtered by feilds $param in json format ex:- '["name"]'

			$param = '?filters=[["'.$docType.'", "'.$field.'", "'.$operator.'", "'.$value.'"]]';

			$this->get(array(
		           $this->erpUrl.$this->api_resource.$docType.'/'.$param));
		}

		function createDocument($docType,$jsonData){  // Create data
			$a = $this->post(array(
		           $this->erpUrl.$this->api_resource.$docType  =>  array(
		               'data'  =>  $jsonData,
		     )));
			//print_r($a);exit;
		}

		function updateDocument($docType,$jsonData,$id){ // Update data
			$this->put(array(
		           $this->erpUrl.$this->api_resource.$docType.'/'.$id  =>  array(
		               'data'  =>  $jsonData,
		     )));
		}

		function getJson($array){
			return json_encode($array);
		}


		function getProductCollection(){
			return Mage::getModel('catalog/product')->getCollection();
		}

		function loadProduct($_product){
			return Mage::getModel('catalog/product')->loadByAttribute('sku',$_product->item_code);
		}

		function updateSingleProduct($sku){

			if($sku){
				$e_product = $this->getDocumentById('Item',$sku);
				$e_product = json_decode($e_product->body);
				$e_product = $this->updateProduct($e_product->data);
			}

		}
		function updateAllProduct($docType,$limit_start,$limit_page_length,$fields){ // Update All product
			$e_product = $this->getDocumentAll($docType,$limit_start,$limit_page_length,$fields);
			$e_product = json_decode($e_product->body);

		}

		function updateProductStock($docType,$limit_start,$limit_page_length,$fields){ // Update All product stock
			$e_product = $this->getDocumentAll($docType,$limit_start,$limit_page_length,$fields);
			$e_product = json_decode($e_product->body);

			$collection = $e_product->data->items;
			foreach ($collection as $_product) {

				$this->updateStock($_product);
			}
		}
		function getProductStock($product){
			return Mage::getModel('cataloginventory/stock_item')->loadByProduct($product);
		}

		function updateStock($_product){
			$product = $this->loadProduct($_product);
			$stock = $this->getProductStock($product);
			try{
				if($_product->qty > 0){ $stock->setIsInStock(1); }else{ $stock->setIsInStock(0); }
				$stock->setQty($_product->qty)->save();
				echo 'done';
			}
			catch(Exception $e){
				echo 'a';
				echo $e->getMessage();
			}

		}

		function updateProduct($e_product){

			$product = $this->loadProduct($e_product);
			$product->setName($e_product->item_name);
			try{
				$product->save();
				echo 'done';
			}catch(Exception $e){
				echo $e->getMessage();
			}
		}


		function getCustomerCollection(){
			return Mage::getModel('customer/customer')->getCollection()->addAttributeToSelect('*');
		}

		function getErpCustomer(){
			echo '<pre>';
			$cust = $this->getDocumentById('Customer','yash');
			print_r($cust);exit;
		}

		function writeNewCustomers(){

			foreach ($this->getCustomerCollection() as $customer) {
				$data =  array(
					 		'customer_name' => $customer->getFirstname().' '.$customer->getLastname().'-'.$customer->getId() ,
							'customer_group' => 'Individual',
							'customer_type' => 'Individual',
							'territory' => 'India',
							'company' => 'Test Company',
				 		);

				$data = $this->getJson($data);
				try{
					$this->createDocument('Customer',$data);
				}
				catch(Exception $e){
					echo $e->getMessage();
				}
			}
		}

		function writeNewCustomerAddress(){

			foreach ($this->getCustomerCollection() as $customer) {

				$billing_address = $customer->getDefaultBillingAddress();

				if($billing_address){

					$data =  array(
						 		'address_line1' => $billing_address->getData('street'),
								'city' => $billing_address->getCity(),
								'phone' => $billing_address->getTelephone(),
					 		);
					echo $doc = 'Address/'.$customer->getFirstname().' '.$customer->getLastname().'-Billing';
					$data = $this->getJson($data);
					print_r($data);exit;
					try{
						$this->createDocument($doc,$data);
					}
					catch(Exception $e){
						echo $e->getMessage();
					}
				}
			}
		}

		function writeOrders(){

			$orders = Mage::getModel('sales/order')->getCollection();

			$items = array();
			foreach ($orders as $order) {

				if($order->getCustomerGroupId() == 0){ continue; }
				$ordered_items = $order->getAllItems();

				foreach($ordered_items as $item){
					$sku = $item->getSku();
					$items[] = array('item_code'=>$sku);
				}

				$data =  array(
				 		'customer' => $order->getCustomerFirstname() ,
						'delivery_date' => date('Y-m-d'),
						'items'=> array($items));


				$data = $this->getJson($data);

				try{
					$this->createDocument('Sales Order',$data);

				}
				catch(Exception $e){
					echo $e->getMessage();
				}
			}
		}

			function pushCustomer($customer){
			$data =  array(
				 		'customer_name' => $customer->getFirstname().' '.$customer->getLastname().'-'.$customer->getId() ,
						'customer_group' => 'Individual',
						'customer_type' => 'Individual',
						'territory' => 'India',
						'company' => 'Test Company',
						'status' => 'Submitted',
			 		);

			$data = $this->getJson($data);
			try{
				echo 'a';
				$result = $this->createDocument($this->docCustomer,$data);
			}
			catch(Exception $e){
				echo 'b'
				$result = $e->getMessage();
			}

			return $result;
		}

		function pushAllCustomer(){
			$customers = Mage::getModel('customer/customer')->getCollection();

			foreach ($customers as $customer) {
				$this->pushCustomer($customer);
			}
		}

	}
	 $obj->cookies('/tmp/cookies.txt',true);
	 $obj->login();
	//$obj->updateProductStock('Stock%20Entry/STE-00001');
	// $obj->writeOrders();
	// $obj->writeOrders();



?>

This script is for Magento 1.9.
Any one have similar script for Magento 2 ?