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Checkout

Build a secure, modular checkout that adapts payment methods, customer data, fulfillment, and your brand in one experience.

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DEUNA Checkout gives merchants a configurable customer experience without coupling the storefront to each payment or commerce capability. Configure the experience once, then use the integration model that matches your application.

Checkout experienceConfigure once. Preview every change live.
Merchant workspaceConfigure checkoutSynced
Payment methods
••••Card
Apple Pay
GGoogle Pay
PPayPal
Brand theme
Live preview
Secure checkout
Order#D-2048$250.00
Payment methods
Card number•••• •••• •••• 4242
Expiry12 / 29
CVV•••
Total$250.00

What Checkout includes#

Compose the capabilities your purchase journey needs. Each module can be enabled and styled independently.

Customer informationCollect and manage the customer details required for the order.AddressesLet customers select, add, and update billing or shipping addresses.FulfillmentPresent delivery, pickup, and other shipping options in context.CouponsApply promotions and show their effect on the order total immediately.TipsAdd an optional gratuity step where it is relevant to the purchase.PaymentOffer configured payment methods through a consistent, secure interface.

How the experience fits together#

Checkout workflowFrom order context to confirmed payment.Explore each phase and the systems involved without losing the complete journey.
Merchant appMerchant backendPrepare order contextProduct, customer, amount, and fulfillment data
Merchant backendDEUNAPOST /merchants/ordersAuthenticated server-to-server request
DEUNACheckoutReturn tokenized orderSafe context for the customer session
Merchant appCheckoutdeunaCheckout.show()Open the configured checkout
Endpoint paths are shown in context; use the API reference for complete request and authorization details.

Customize the experience#

Keep the purchase journey consistent with your product while exposing only the modules a customer needs.

Add checkout modulesChoose the business capabilities shown during checkout and configure their behavior.Apply your brandSet logos, colors, visual styles, and the presentation of payment methods.Control validationDefine how the interface validates fields and communicates required corrections.Customize with CSSApply detailed visual changes when the standard theme controls are not enough.

Choose your integration model#

Use the option that matches how much interface and application control your team wants to own.

Integration models

Choose the ownership model that fits your team.

Compare setup speed, interface ownership, and implementation flexibility before you start.

Compare every format
01Hosted by DEUNALaunch a complete DEUNA-hosted experience with minimal storefront implementation.Fastest launch02SDKEmbed DEUNA capabilities in web or mobile apps while retaining control of the surrounding experience.Web and mobile03PluginInstall a maintained extension for a supported commerce platform with less custom engineering.Commerce platforms04Direct APIOwn the interface and coordinate checkout or payment operations from your application and backend.Maximum control
Not sure which model to choose? Compare the customer experience and ownership boundaries in the integration guide.

Developer resources#

API referenceExplore merchant-facing endpoints, authorization, request fields, and response objects.Payment workflow and statusesImplement payment states, customer actions, retries, and terminal outcomes correctly.

SDKs

Choose the platform for your application.

Web SDKJavaScript and TypeScript for any web stack.JavaScript · CDNReact NativeOne integration for iOS and Android apps.TypeScript · iOS + AndroidiOSSwift SDK for native iOS applications.Swift · SPMAndroidKotlin SDK for native Android applications.Kotlin · Gradle