eSewa payment integration requires a custom Shopify payment provider app
eSewa does not have an official Shopify payment gateway integration in the App Store. Connecting eSewa as a checkout payment method requires a custom app built using Shopify's Payment Provider API. The app must handle the payment initiation call to eSewa's API, process the payment success and failure webhooks returned by eSewa, and update the Shopify order status accordingly. Without a custom payment provider app, eSewa cannot appear as a selectable payment method at Shopify checkout. The same applies to Khalti, which also has no native Shopify app. Both integrations require backend infrastructure to handle webhook verification and order reconciliation securely.