Create Payment Method In Magento 2

Create payment method module

Create registration.php

Directory

app/code/VendorName/PaymentModule/registration.php

Content for this file

<?php
\Magento\Framework\Component\ComponentRegistrar::register(
    \Magento\Framework\Component\ComponentRegistrar::MODULE,
    'VendorName_PaymentModule',
    __DIR__
);

Create module.xml

Directory

app/code/VendorName/PaymentModule/etc/module.xml

Content for this file

<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Module/etc/module.xsd">
    <module name="VendorName_PaymentModule" setup_version="0.1.0">
        <sequence>
            <module name="Magento_Sales"/>
            <module name="Magento_Payment"/>
            <module name="Magento_Checkout"/>
            <module name="Magento_Directory" />
            <module name="Magento_Config" />
        </sequence>
    </module>
</config>

Declare payment method module

Create payment.xml

app/code/VendorName/PaymentModule/etc/payment.xml

Content for this file

<?xml version="1.0" ?>
<paymentmodule xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:noNamespaceSchemaLocation="urn:magento:module:Magento_Payment:etc/payment.xsd">
    <groups>
        <group id="offline">
            <label>Offline Payment Methods</label>
        </group>
    </groups>
    <methods>
        <method name="simple">
            <allow_multiple_address>1</allow_multiple_address>
        </method>
    </methods>
</paymentmodule>

Create config.xml

app/code/VendorName/PaymentModule/etc/config.xml

Content for this file

<?xml version="1.0" ?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:noNamespaceSchemaLocation="urn:magento:module:Magento_Store:etc/config.xsd">
    <default>
        <payment>
            <simple>
                <active>1</active>
                <model>VendorName\PaymentModule\Model\Payment\Simple</model>
                <order_status>pending</order_status>
                <title>Simple</title>
                <allowspecific>0</allowspecific>
                <group>Offline</group>
            </simple>
        </payment>
    </default>
</config>

Create Model File

Directory

app/code/VendorName/PaymentModule/Model/Payment/Simple.php

Content for this file

<?php
namespace VendorName\PaymentModule\Model\Payment;
class Simple extends \Magento\Payment\Model\Method\Cc
{
    protected $_isGateway = true;
    protected $_canCapture = true;
    protected $_canCapturePartial = true;
    protected $_canRefund = true;
    protected $_canRefundInvoicePartial = true;
    protected $_stripeApi = false;
    protected $_countryFactory;
    protected $_minAmount = null;
    protected $_maxAmount = null;
    protected $_supportedCurrencyCodes = array('USD');
    protected $_debugReplacePrivateDataKeys
        = ['number', 'exp_month', 'exp_year', 'cvc'];
    public function __construct(\Magento\Framework\Model\Context $context,
        \Magento\Framework\Registry $registry,
        \Magento\Framework\Api\ExtensionAttributesFactory $extensionFactory,
        \Magento\Framework\Api\AttributeValueFactory $customAttributeFactory,
        \Magento\Payment\Helper\Data $paymentData,
        \Magento\Framework\App\Config\ScopeConfigInterface $scopeConfig,
        \Magento\Payment\Model\Method\Logger $logger,
        \Magento\Framework\Module\ModuleListInterface $moduleList,
        \Magento\Framework\Stdlib\DateTime\TimezoneInterface $localeDate,
        \Magento\Directory\Model\CountryFactory $countryFactory,
        array $data = array()
    ) {
        parent::__construct(
            $context, $registry, $extensionFactory, $customAttributeFactory,
            $paymentData, $scopeConfig, $logger, $moduleList, $localeDate, null,
            null, $data
        );
        $this->_countryFactory = $countryFactory;
        $this->_minAmount = $this->getConfigData('min_order_total');
        $this->_maxAmount = $this->getConfigData('max_order_total');
    }
    /**
     * Authorize payment abstract method
     *
     * @param \Magento\Framework\DataObject|InfoInterface $payment
     * @param float $amount
     * @return $this
     * @throws \Magento\Framework\Exception\LocalizedException
     * @api
     * @SuppressWarnings(PHPMD.UnusedFormalParameter)
     */
    public function authorize(\Magento\Payment\Model\InfoInterface $payment, $amount)
    {
        if (!$this->canAuthorize()) {
            throw new \Magento\Framework\Exception\LocalizedException(__('The authorize action is not available.'));
        }
        return $this;
    }
    /**
     * Capture payment abstract method
     *
     * @param \Magento\Framework\DataObject|InfoInterface $payment
     * @param float $amount
     * @return $this
     * @throws \Magento\Framework\Exception\LocalizedException
     * @api
     * @SuppressWarnings(PHPMD.UnusedFormalParameter)
     */
    public function capture(\Magento\Payment\Model\InfoInterface $payment, $amount)
    {
        if (!$this->canCapture()) {
            throw new \Magento\Framework\Exception\LocalizedException(__('The capture action is not available.'));
        }
        return $this;
    }
    /**
     * Refund specified amount for payment
     *
     * @param \Magento\Framework\DataObject|InfoInterface $payment
     * @param float $amount
     * @return $this
     * @throws \Magento\Framework\Exception\LocalizedException
     * @api
     * @SuppressWarnings(PHPMD.UnusedFormalParameter)
     */
    public function refund(\Magento\Payment\Model\InfoInterface $payment, $amount)
    {
        if (!$this->canRefund()) {
            throw new \Magento\Framework\Exception\LocalizedException(__('The refund action is not available.'));
        }
        return $this;
    }
}

Display payment method on the checkout page

Create layout file

Directory

app/code/VendorName/PaymentModule/view/frontend/layout/checkout_index_index.xml

Content for this file

<?xml version="1.0" ?>
<pagepage layout="1column" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          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="steps" xsi:type="array">
                                    <item name="children" xsi:type="array">
                                        <item name="billing-step" xsi:type="array">
                                            <item name="children" xsi:type="array">
                                                <item name="payment" xsi:type="array">
                                                    <item name="children" xsi:type="array">
                                                        <item name="renders" xsi:type="array">
                                                            <item name="children" xsi:type="array">
                                                                <item name="offline-payments" xsi:type="array">
                                                                    <item name="component" xsi:type="string">Magento_OfflinePayments/js/view/payment/offline-payments</item>
                                                                    <item name="methods" xsi:type="array">
                                                                        <item name="simple" xsi:type="array">
                                                                            <item name="isBillingAddressRequired" xsi:type="boolean">true</item>
                                                                        </item>
                                                                    </item>
                                                                </item>
                                                            </item>
                                                        </item>
                                                    </item>
                                                </item>
                                            </item>
                                        </item>
                                    </item>
                                </item>
                            </item>
                        </item>
                    </item>
                </argument>
            </arguments>
        </referenceBlock>
    </body>
</pagepage>

Create js files to load template

Directory

app/code/VendorName/PaymentModule/view/frontend/web/js/view/payment/simple.js

Content for this file

define(
    [
        'uiComponent',
        'Magento_Checkout/js/model/payment/renderer-list'
    ],
    function (Component,
              rendererList) {
        'use strict';
        rendererList.push(
            {
                type: 'simple',
                component: 'VendorName_PaymentModule/js/view/payment/method-renderer/simple-method'
            }
        );
        return Component.extend({});
    }
);

Now create,

/view/frontend/web/js/view/payment/method-renderer/simple-method.js

define(
    [
        'Magento_Checkout/js/view/payment/default'
    ],
    function (Component) {
        'use strict';
        return Component.extend({
            defaults: {
                template: 'VendorName_PaymentModule/payment/simple'
            },
            getMailingAddress: function () {
                return window.checkoutConfig.payment.checkmo.mailingAddress;
            },
        });
    }
);

Create the template file

Directory

app/code/VendorName/PaymentModule/view/frontend/web/template/payment/simple.html

Content for this file

<div class="payment-method" data-bind="css: {'_active': (getCode() == isChecked())}">
    <div class="payment-method-title field choice">
        <input type="radio"
               name="payment[method]"
               class="radio"
               data-bind="attr: {'id': getCode()}, value: getCode(), checked: isChecked, click: selectPaymentMethod, visible: isRadioButtonVisible()"/>
        <label data-bind="attr: {'for': getCode()}" class="label"><span data-bind="text: getTitle()"></span></label>
    </div>
    <div class="payment-method-content">
        <!-- ko foreach: getRegion('messages') -->
        <!-- ko template: getTemplate() --><!-- /ko -->
        <!--/ko-->
        <div class="payment-method-billing-address">
            <!-- ko foreach: $parent.getRegion(getBillingAddressFormName()) -->
            <!-- ko template: getTemplate() --><!-- /ko -->
            <!--/ko-->
        </div>
        <div class="checkout-agreements-block">
            <!-- ko foreach: $parent.getRegion('before-place-order') -->
            <!-- ko template: getTemplate() --><!-- /ko -->
            <!--/ko-->
        </div>
        <div class="actions-toolbar">
            <div class="primary">
                <button class="action primary checkout"
                        type="submit"
                        data-bind="
                        click: placeOrder,
                        attr: {title: $t('Place Order')},
                        css: {disabled: !isPlaceOrderActionAllowed()},
                        enable: (getCode() == isChecked())
                        "
                        disabled>
                    <span data-bind="i18n: 'Place Order'"></span>
                </button>
            </div>
        </div>
    </div>
</div>

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