Como adicionar taxa para encomendar totais no Magento 2

O link a seguir descreve

http://excellencemagentoblog.com/blog/2012/01/27/magento-add-fee-discount-order-total/

para adicionar uma taxa aos totais dos pedidos no Magento 1.

Agora essa funcionalidade é movida para o módulo Quote no Magento 2.

Eu ainda acho o mesmo conceito como métodos de coleta e busca. Alguém já tentou isso no Magento 2?

siga as etapas abaixo para ajudá-lo. No meu módulo, acabei de adicionar a coluna de taxa,
isso adicionará uma linha no total chamada taxa e também barra lateral na página de check-out
e também adicionou valor da taxa ao valor total (valor estático da taxa que mantive como 100 ) quando o pedido for feito, o total ficará com a taxa e, se você estiver logado na frente na exibição de pedidos, poderá ver a nova linha da taxa no bloco total, mas o lado do administrador ainda não foi implementado se alguém implementar, você pode postar essa resposta

crie sales.xml na sua pasta do módulo etc

<?xml version="1.0"?>

<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:module:Magento_Sales:etc/sales.xsd">
    <section name="quote">
        <group name="totals">

            <item name="fee" instance="Sugarcode\Test\Model\Total\Fee" sort_order="150"/>

        </group>  
    </section>
</config>

app \ code \ Sugarcode \ Test \ view \ frontend \ web \ js \ view \ checkout \ cart \ totals \ fee.js

/**
 * Copyright © 2015 Magento. All rights reserved.
 * See COPYING.txt for license details.
 */
define(
    [
        'Sugarcode_Test/js/view/checkout/summary/fee'
    ],
    function (Component) {
        'use strict';

        return Component.extend({

            /**
             * @override
             */
            isDisplayed: function () {
                return true;
            }
        });
    }
);

app \ code \ Sugarcode \ Test \ view \ frontend \ web \ js \ view \ checkout \ summary \ fee.js

/**
 * Copyright © 2015 Magento. All rights reserved.
 * See COPYING.txt for license details.
 */
/*jshint browser:true jquery:true*/
/*global alert*/
define(
    [
        'Magento_Checkout/js/view/summary/abstract-total',
        'Magento_Checkout/js/model/quote',
        'Magento_Catalog/js/price-utils',
        'Magento_Checkout/js/model/totals'
    ],
    function (Component, quote, priceUtils, totals) {
        "use strict";
        return Component.extend({
            defaults: {
                isFullTaxSummaryDisplayed: window.checkoutConfig.isFullTaxSummaryDisplayed || false,
                template: 'Sugarcode_Test/checkout/summary/fee'
            },
            totals: quote.getTotals(),
            isTaxDisplayedInGrandTotal: window.checkoutConfig.includeTaxInGrandTotal || false,
            isDisplayed: function() {
                return this.isFullMode();
            },
            getValue: function() {
                var price = 0;
                if (this.totals()) {
                    price = totals.getSegment('fee').value;
                }
                return this.getFormattedPrice(price);
            },
            getBaseValue: function() {
                var price = 0;
                if (this.totals()) {
                    price = this.totals().base_fee;
                }
                return priceUtils.formatPrice(price, quote.getBasePriceFormat());
            }
        });
    }
);

app \ code \ Sugarcode \ Test \ view \ frontend \ web \ template \ checkout \ summary \ fee.html

<!--
/**
 * Copyright © 2015 Magento. All rights reserved.
 * See COPYING.txt for license details.
 */
-->
<!-- ko -->

  <tr class="totals fee excl">
        <th class="mark" scope="row">
            <span class="label" data-bind="text: title"></span>
            <span class="value" data-bind="text: getValue()"></span>
        </th>
        <td class="amount">

            <span class="price"
                  data-bind="text: getValue(), attr: {'data-th': title}"></span>


        </td>
    </tr>   

<!-- /ko -->

app \ code \ Sugarcode \ Test \ view \ frontend \ web \ template \ checkout \ cart \ totals \ fee.html

<!--
/**
 * Copyright © 2015 Magento. All rights reserved.
 * See COPYING.txt for license details.
 */
-->
<!-- ko -->
<tr class="totals fee excl">
    <th class="mark" colspan="1" scope="row" data-bind="text: title"></th>
    <td class="amount">
        <span class="price" data-bind="text: getValue()"></span>
    </td>
</tr>
<!-- /ko -->

app \ code \ Sugarcode \ Test \ Model \ Total \ Fee.php

<?php
/**
 * Copyright © 2015 Magento. All rights reserved.
 * See COPYING.txt for license details.
 */
namespace Sugarcode\Test\Model\Total;


class Fee extends \Magento\Quote\Model\Quote\Address\Total\AbstractTotal
{
   /**
     * Collect grand total address amount
     *
     * @param \Magento\Quote\Model\Quote $quote
     * @param \Magento\Quote\Api\Data\ShippingAssignmentInterface $shippingAssignment
     * @param \Magento\Quote\Model\Quote\Address\Total $total
     * @return $this
     */
    protected $quoteValidator = null; 

    public function __construct(\Magento\Quote\Model\QuoteValidator $quoteValidator)
    {
        $this->quoteValidator = $quoteValidator;
    }
  public function collect(
        \Magento\Quote\Model\Quote $quote,
        \Magento\Quote\Api\Data\ShippingAssignmentInterface $shippingAssignment,
        \Magento\Quote\Model\Quote\Address\Total $total
    ) {
        parent::collect($quote, $shippingAssignment, $total);


        $exist_amount = 0; //$quote->getFee(); 
        $fee = 100; //Excellence_Fee_Model_Fee::getFee();
        $balance = $fee - $exist_amount;

        $total->setTotalAmount('fee', $balance);
        $total->setBaseTotalAmount('fee', $balance);

        $total->setFee($balance);
        $total->setBaseFee($balance);

        $total->setGrandTotal($total->getGrandTotal() + $balance);
        $total->setBaseGrandTotal($total->getBaseGrandTotal() + $balance);


        return $this;
    } 

    protected function clearValues(Address\Total $total)
    {
        $total->setTotalAmount('subtotal', 0);
        $total->setBaseTotalAmount('subtotal', 0);
        $total->setTotalAmount('tax', 0);
        $total->setBaseTotalAmount('tax', 0);
        $total->setTotalAmount('discount_tax_compensation', 0);
        $total->setBaseTotalAmount('discount_tax_compensation', 0);
        $total->setTotalAmount('shipping_discount_tax_compensation', 0);
        $total->setBaseTotalAmount('shipping_discount_tax_compensation', 0);
        $total->setSubtotalInclTax(0);
        $total->setBaseSubtotalInclTax(0);
    }
    /**
     * @param \Magento\Quote\Model\Quote $quote
     * @param Address\Total $total
     * @return array|null
     */
    /**
     * Assign subtotal amount and label to address object
     *
     * @param \Magento\Quote\Model\Quote $quote
     * @param Address\Total $total
     * @return array
     * @SuppressWarnings(PHPMD.UnusedFormalParameter)
     */
    public function fetch(\Magento\Quote\Model\Quote $quote, \Magento\Quote\Model\Quote\Address\Total $total)
    {
        return [
            'code' => 'fee',
            'title' => 'Fee',
            'value' => 100
        ];
    }

    /**
     * Get Subtotal label
     *
     * @return \Magento\Framework\Phrase
     */
    public function getLabel()
    {
        return __('Fee');
    }
}

app \ code \ Sugarcode \ Test \ etc \ module.xml

<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../../../../../lib/internal/Magento/Framework/Module/etc/module.xsd">
    <module name="Sugarcode_Test" setup_version="2.0.6" schema_version="2.0.6">
        <sequence>
            <module name="Magento_Sales"/>
            <module name="Magento_Quote"/>
            <module name="Magento_Checkout"/>
        </sequence>
    </module>
</config>

app \ code \ Sugarcode \ Test \ view \ frontend \ layout \ checkout_cart_index.xml

<?xml version="1.0"?>
<!--
/**
 * Copyright © 2015 Magento. All rights reserved.
 * See COPYING.txt for license details.
 */
-->
<page xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:View/Layout/etc/page_configuration.xsd">
    <body>
        <referenceBlock name="checkout.cart.totals">
            <arguments>
                <argument name="jsLayout" xsi:type="array">
                    <item name="components" xsi:type="array">
                        <item name="block-totals" xsi:type="array">
                            <item name="children" xsi:type="array">


                                <item name="fee" xsi:type="array">
                                    <item name="component"  xsi:type="string">Sugarcode_Test/js/view/checkout/cart/totals/fee</item>
                                    <item name="sortOrder" xsi:type="string">20</item>
                                    <item name="config" xsi:type="array">
                                         <item name="template" xsi:type="string">Sugarcode_Test/checkout/cart/totals/fee</item>
                                        <item name="title" xsi:type="string" translate="true">Fee</item>
                                    </item>
                                </item>

                            </item>
                        </item>
                    </item>
                </argument>
            </arguments>
        </referenceBlock>
    </body>
</page>

app \ code \ Sugarcode \ Test \ view \ frontend \ layout \ checkout_index_index.xml

<?xml version="1.0"?>
<!--
/**
 * Copyright © 2015 Magento. All rights reserved.
 * See COPYING.txt for license details.
 */
-->
<page xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" layout="1column" xsi:noNamespaceSchemaLocation="urn:magento:framework:View/Layout/etc/page_configuration.xsd">
    <body>
        <referenceBlock name="checkout.root">
            <arguments>
                <argument name="jsLayout" xsi:type="array">
                    <item name="components" xsi:type="array">
                        <item name="checkout" xsi:type="array">
                            <item name="children" xsi:type="array">

                                <item name="sidebar" xsi:type="array">
                                    <item name="children" xsi:type="array">
                                        <item name="summary" xsi:type="array">
                                            <item name="children" xsi:type="array">
                                                <item name="totals" xsi:type="array">
                                                    <item name="children" xsi:type="array">
                                                       <item name="fee" xsi:type="array">
                                                            <item name="component"  xsi:type="string">Sugarcode_Test/js/view/checkout/cart/totals/fee</item>
                                                            <item name="sortOrder" xsi:type="string">20</item>
                                                            <item name="config" xsi:type="array">
                                                                 <item name="template" xsi:type="string">Sugarcode_Test/checkout/cart/totals/fee</item>
                                                                <item name="title" xsi:type="string" translate="true">Fee</item>
                                                            </item>
                                                        </item>
                                                    </item>
                                                </item>
                                                <item name="cart_items" xsi:type="array">
                                                    <item name="children" xsi:type="array">
                                                        <item name="details" xsi:type="array">
                                                            <item name="children" xsi:type="array">
                                                                <item name="subtotal" xsi:type="array">
                                                                    <item name="component" xsi:type="string">Magento_Tax/js/view/checkout/summary/item/details/subtotal</item>
                                                                </item>
                                                            </item>
                                                        </item>
                                                    </item>
                                                </item>
                                            </item>
                                        </item>
                                    </item>
                                </item>
                            </item>
                        </item>
                    </item>
                </argument>
            </arguments>
        </referenceBlock>
    </body>
</page>

app \ code \ Sugarcode \ Test \ view \ frontend \ layout \ sales_order_view.xml

<?xml version="1.0"?>
<!--
/**
 * Copyright © 2015 Magento. All rights reserved.
 * See COPYING.txt for license details.
 */
-->
<page xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:View/Layout/etc/page_configuration.xsd">

    <body>        
        <referenceContainer name="order_totals">
            <block class="Sugarcode\Test\Block\Sales\Order\Fee" name="fee"/>
        </referenceContainer>
    </body>
</page>

app \ code \ Sugarcode \ Test \ Block \ Sales \ Order \ Fee.php

<?php
/**
 * Copyright © 2015 Magento. All rights reserved.
 * See COPYING.txt for license details.
 */

/**
 * Tax totals modification block. Can be used just as subblock of \Magento\Sales\Block\Order\Totals
 */
namespace Sugarcode\Test\Block\Sales\Order;



class Fee extends \Magento\Framework\View\Element\Template
{
    /**
     * Tax configuration model
     *
     * @var \Magento\Tax\Model\Config
     */
    protected $_config;

    /**
     * @var Order
     */
    protected $_order;

    /**
     * @var \Magento\Framework\DataObject
     */
    protected $_source;

    /**
     * @param \Magento\Framework\View\Element\Template\Context $context
     * @param \Magento\Tax\Model\Config $taxConfig
     * @param array $data
     */
    public function __construct(
        \Magento\Framework\View\Element\Template\Context $context,
        \Magento\Tax\Model\Config $taxConfig,
        array $data = []
    ) {
        $this->_config = $taxConfig;
        parent::__construct($context, $data);
    }

    /**
     * Check if we nedd display full tax total info
     *
     * @return bool
     */
    public function displayFullSummary()
    {
        return true;
    }

    /**
     * Get data (totals) source model
     *
     * @return \Magento\Framework\DataObject
     */
    public function getSource()
    {
        return $this->_source;
    } 
    public function getStore()
    {
        return $this->_order->getStore();
    }

      /**
     * @return Order
     */
    public function getOrder()
    {
        return $this->_order;
    }

    /**
     * @return array
     */
    public function getLabelProperties()
    {
        return $this->getParentBlock()->getLabelProperties();
    }

    /**
     * @return array
     */
    public function getValueProperties()
    {
        return $this->getParentBlock()->getValueProperties();
    }

    /**
     * Initialize all order totals relates with tax
     *
     * @return \Magento\Tax\Block\Sales\Order\Tax
     */
     public function initTotals()
    {

        $parent = $this->getParentBlock();
        $this->_order = $parent->getOrder();
        $this->_source = $parent->getSource();

        $store = $this->getStore();

        $fee = new \Magento\Framework\DataObject(
                [
                    'code' => 'fee',
                    'strong' => false,
                    'value' => 100,
                    //'value' => $this->_source->getFee(),
                    'label' => __('Fee'),
                ]
            );

            $parent->addTotal($fee, 'fee');
           // $this->_addTax('grand_total');
            $parent->addTotal($fee, 'fee');


            return $this;
    }

}

Depois que as etapas acima forem executadas, execute o comando abaixo. Isso é importante, caso contrário, seus arquivos js & html estarão ausentes na pasta pub / static. Então execute o comando abaixo, que criará os arquivos js e html na pasta pub / static

configuração bin \ magento: static-content: deploy

se funciona aceitar a minha resposta que ajuda os outros

Desenvolvi um módulo personalizado para adicionar uma taxa extra ao pedido.

A taxa extra será exibida na página do carrinho, na página de checkout, na fatura e no creditmemo . Você também pode selecionar o tipo de preço a ser fixado e a porcentagem na configuração do administrador.

https://github.com/mageprince/magento2-extrafee/

A resposta do Pradeep é muito útil, mas perde um ponto importante.

A função Sugarcode \ Teste \ Modelo \ Total :: collect () é chamada duas vezes pelo Magento \ Quote \ Model \ QuoteTotalsCollector :: collect () do Magento, uma vez para cada endereço. Nesse ponto, ele cria um total combinado que é armazenado na tabela de cotações. Ele não aparece no pedido nem no site do checkout.

Por esse motivo, é importante cobrar a taxa apenas em uma das vezes em que collect () é chamado. Isso pode ser feito verificando se existem itens enviados disponíveis:

    $items = $shippingAssignment->getItems();
    if (!count($items)) {
        return $this;
    }

Adicione este código no início da sua variante de Sugarcode \ Test \ Model \ Total :: collect ()

Com base na resposta acima, desenvolvi uma extensão de taxa personalizada.

https://github.com/sivajik34/Custom-Fee-Magento2

por favor comente

        $total->setGrandTotal($total->getGrandTotal() + $balance);

formulário app \ code \ Sugarcode \ Teste \ Modelo \ Total \ Fee.php para questão de taxa personalizada dupla

Espero que ajude você !!