WooCommerce Stripe Gateway - India FIX

kdc-wc-stripein-fix.php

<?php
/**
 * Plugin Name: WooCommerce Stripe Gateway - India FIX
 * Plugin URI: https://github.com/woocommerce/woocommerce-gateway-stripe/issues/1284
 * Description: Stripe India, requires to pass some addtional parameters. [Read Here](https://stripe.com/docs/india-exports)
 * Author: KDC
 * Author URI: https://kdc.in/
 * Version: 1.0.1
 * Requires at least: 4.4
 * Tested up to: 5.5
 * WC requires at least: 3.0
 * WC tested up to: 4.3
 * Text Domain: woocommerce-gateway-stripe-in
 *
 */


/**
 * Avoid direct access to file
 */
 if ( ! defined( 'ABSPATH' ) ) {
	exit;
}


/**
 * Check if 'WooCommerce Stripe Gateway' is installed & active
 */
if ( ! is_plugin_active( 'woocommerce-gateway-stripe/woocommerce-gateway-stripe.php' ) ) {
    echo '<div class="error"><p><strong>' . sprintf( esc_html__( 'Stripe - India FIX requires WooCommerce Stripe Gateway to be installed and active. You can download %s here.', 'woocommerce-gateway-stripe-in' ), '<a href="https://wordpress.org/plugins/woocommerce-gateway-stripe/" target="_blank">WP Plugin</a>' ) . '</strong></p></div>';
    exit;
}


/**
 * Enable support to Store Country as IN
 * 
 * @since 1.0.0
 * @see https://gist.github.com/tommyshellberg/6e1d1ddae944f3cbdd4b0aad87844b13
 * @update https://wordpress.org/support/topic/after-the-latest-update-stripe-is-not-working-on-my-website/#post-13251503
 */
if( ! function_exists( 'kdc_wc_stripe_in_add_supported_country' ) ) {

    function kdc_wc_stripe_in_add_supported_country( $countries ) {
        
        if ( ! in_array( 'IN', $countries ) ) {
		$countries[] = 'IN';
	}
        
        return $countries;
        
    }

    add_filter( 'wc_stripe_supported_countries', 'kdc_wc_stripe_in_add_supported_country', 10, 2 );

}


/**
 * Add Post Data to Stripe's PaymentIntent
 * 
 * @since 1.0.0
 */
if( ! function_exists( 'kdc_wc_stripe_in_add_post_data' ) ) {

    function kdc_wc_stripe_in_add_post_data( $post_data, $order ) {
    
        /**
         * Check if the cart has only Virtual &/or Downloadable Items,
         * Accordingly mark as `Export of Goods`
         * 
         * @see https://stripe.com/docs/india-exports#export-of-goods
         * @credit https://wordpress.org/support/topic/skip-shipping-for-virtual-variable-products/#post-10125403
         */
         // By default, virtual/downloadable product only
        $kdc_virtual_downloadable_products_only = true;

        // Get all products in cart
        $products = WC()->cart->get_cart();

        // Loop through cart products
        foreach( $products as $product ) {

            // is variation downloadable
            $is_downloadable = $product['data']->downloadable;

            // is variation virtual
            $is_virtual = $product['data']->virtual ;

            // Update $virtual_downloadable_products_only if product is not virtual or downloadable and exit loop
            if( 'no' == $is_virtual && 'no' == $is_downloadable ) {
                $kdc_virtual_downloadable_products_only = false;
                break;
            }

        }

        if( false === $kdc_virtual_downloadable_products_only ) {

            /** 
             * Add Shipping Info
             * 
             * @see https://github.com/woocommerce/woocommerce-gateway-stripe/issues/1266#issuecomment-667976567
             * @credit marcinbot
             */
            if ( ! empty( $order->get_shipping_postcode() ) ) {
                $post_data['shipping'] = array(
                    'name'    => $order->get_shipping_first_name() . ' ' . $order->get_shipping_last_name(),
                    'address' => array(
                        'line1'       => $order->get_shipping_address_1(),
                        'line2'       => $order->get_shipping_address_2(),
                        'city'        => $order->get_shipping_city(),
                        'country'     => $order->get_shipping_country(),
                        'postal_code' => $order->get_shipping_postcode(),
                        'state'       => $order->get_shipping_state(),
                    )
                );
            }

        }

        return $post_data;

    }

    add_filter( 'wc_stripe_generate_create_intent_request', 'kdc_wc_stripe_in_add_post_data', 10, 2 );

}

Updated the Supported Country, Now it verifies if the country name does not exist, only then it adds India.
@see https://wordpress.org/support/topic/after-the-latest-update-stripe-is-not-working-on-my-website/#post-13251503