checkout-components

Production-ready Next.js UI components for Stripe payment integration with TypeScript, Tailwind CSS, and accessibility features. Provides complete checkout flows, subscription management, and payment form components.

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Install skill "checkout-components" with this command: npx skills add vanman2024/ai-dev-marketplace/vanman2024-ai-dev-marketplace-checkout-components

Checkout Components

Purpose

Production-ready Next.js UI components for Stripe payment integration with TypeScript, Tailwind CSS, and accessibility features. Provides complete checkout flows, subscription management, and payment form components.

Security Requirements

CRITICAL: API Key Handling

When using these components:

  • Never hardcode Stripe publishable keys in components

  • ALWAYS use environment variables: NEXT_PUBLIC_STRIPE_PUBLISHABLE_KEY

  • Use placeholders in all examples: pk_test_your_stripe_publishable_key_here

  • Never commit actual API keys to git

  • Always add .env files to .gitignore

Example .env.local:

NEVER COMMIT THIS FILE

NEXT_PUBLIC_STRIPE_PUBLISHABLE_KEY=pk_test_your_stripe_publishable_key_here STRIPE_SECRET_KEY=sk_test_your_stripe_secret_key_here STRIPE_WEBHOOK_SECRET=whsec_your_webhook_secret_here

Activation Triggers

  • Creating checkout pages

  • Implementing payment forms

  • Building subscription management UI

  • Adding customer portal components

  • Integrating Stripe Elements

  • Creating payment history displays

  • Setting up pricing tables

Component Overview

Provider Components

  • StripeProvider.tsx - Wraps app with Stripe Elements context

Payment Components

  • CheckoutForm.tsx - Complete checkout form with card input

  • PaymentMethodForm.tsx - Standalone payment method input

  • SubscriptionCard.tsx - Subscription display and management

  • PricingTable.tsx - Pricing tier comparison table

  • PaymentHistory.tsx - Transaction history component

Quick Start

  1. Install Dependencies

Install Stripe React libraries

bash scripts/install-stripe-react.sh

Installs:

  • @stripe/stripe-js

  • Stripe.js loader

  • @stripe/react-stripe-js

  • React Elements components

  • Type definitions for TypeScript

  1. Setup Stripe Provider

Create provider wrapper in your app

bash scripts/setup-stripe-provider.sh

Creates:

  • lib/stripe-client.ts

  • Stripe client initialization

  • components/providers/stripe-provider.tsx

  • Elements provider wrapper

  • Environment variable configuration

  1. Generate Components

Generate specific payment component

bash scripts/generate-component.sh checkout-form bash scripts/generate-component.sh subscription-card bash scripts/generate-component.sh pricing-table

  1. Validate Setup

Validate component structure and configuration

bash scripts/validate-components.sh

Checks:

  • Environment variables configured

  • Dependencies installed

  • Component structure valid

  • TypeScript types correct

  • Accessibility compliance

Component Templates

StripeProvider Template

Wraps your app with Stripe Elements context:

import { StripeProvider } from '@/components/providers/stripe-provider';

export default function RootLayout({ children }) { return ( <html> <body> <StripeProvider> {children} </StripeProvider> </body> </html> ); }

Features:

  • Automatic Stripe.js loading

  • Error boundary handling

  • Loading states

  • Theme customization

CheckoutForm Template

Complete payment form with card input:

import { CheckoutForm } from '@/components/payments/checkout-form';

export default function CheckoutPage() { return ( <div className="max-w-md mx-auto p-6"> <h1 className="text-2xl font-semibold mb-6">Complete Purchase</h1> <CheckoutForm amount={4999} onSuccess={() => router.push('/success')} onError={(error) => console.error(error)} /> </div> ); }

Features:

  • Card Element with validation

  • Real-time error display

  • Loading states

  • Success/error callbacks

  • Responsive design

  • ARIA labels

PaymentMethodForm Template

Standalone payment method collection:

import { PaymentMethodForm } from '@/components/payments/payment-method-form';

export default function AddPaymentMethod() { return ( <PaymentMethodForm onComplete={(paymentMethodId) => { console.log('Payment method created:', paymentMethodId); }} customerId="cus_xxx" /> ); }

Features:

  • Save cards for future use

  • Update existing payment methods

  • Validation and error handling

  • Loading indicators

SubscriptionCard Template

Display and manage subscriptions:

import { SubscriptionCard } from '@/components/payments/subscription-card';

export default function SubscriptionPage() { return ( <SubscriptionCard subscription={{ id: 'sub_xxx', status: 'active', currentPeriodEnd: new Date('2025-12-01'), plan: { name: 'Pro Plan', amount: 2999 } }} onCancel={() => handleCancellation()} onUpdate={() => handleUpdate()} /> ); }

Features:

  • Status badge display

  • Renewal date

  • Cancel/upgrade actions

  • Usage tracking

  • Billing history link

PricingTable Template

Compare pricing tiers:

import { PricingTable } from '@/components/payments/pricing-table';

const plans = [ { id: 'price_free', name: 'Free', price: 0, features: ['10 API calls/month', 'Basic support'] }, { id: 'price_pro', name: 'Pro', price: 2999, features: ['1000 API calls/month', 'Priority support', 'Advanced features'] } ];

export default function Pricing() { return <PricingTable plans={plans} onSelectPlan={(planId) => handleCheckout(planId)} />; }

Features:

  • Responsive grid layout

  • Feature comparison

  • Call-to-action buttons

  • Highlight recommended plan

  • Annual/monthly toggle

PaymentHistory Template

Display transaction history:

import { PaymentHistory } from '@/components/payments/payment-history';

export default function BillingPage() { return ( <PaymentHistory customerId="cus_xxx" limit={10} onLoadMore={() => loadMorePayments()} /> ); }

Features:

  • Paginated transaction list

  • Invoice download links

  • Status indicators

  • Date formatting

  • Search and filter

Styling Customization

All components use Tailwind CSS and support customization:

Element Styling

Customize Stripe Elements appearance:

const appearance = { theme: 'stripe', variables: { colorPrimary: '#0070f3', colorBackground: '#ffffff', colorText: '#000000', colorDanger: '#df1b41', fontFamily: 'system-ui, sans-serif', spacingUnit: '4px', borderRadius: '4px' } };

<Elements stripe={stripePromise} options={{ appearance }}> <CheckoutForm /> </Elements>

Component Classes

Override default Tailwind classes:

<CheckoutForm className="custom-checkout" buttonClassName="bg-blue-600 hover:bg-blue-700" errorClassName="text-red-600 text-sm" />

TypeScript Types

All components include full TypeScript support:

import type { CheckoutFormProps, PaymentMethodFormProps, SubscriptionCardProps, PricingTableProps, PaymentHistoryProps } from '@/types/payments';

Type Definitions:

  • Props interfaces

  • Stripe object types

  • Event handlers

  • Error types

  • Response types

Error Handling

Components provide comprehensive error handling:

<CheckoutForm onError={(error) => { switch (error.type) { case 'card_error': // Show user-friendly message toast.error(error.message); break; case 'validation_error': // Handle validation errors break; default: // Generic error handling console.error(error); } }} />

Error Types:

  • Card validation errors

  • Payment processing errors

  • Network errors

  • Configuration errors

Accessibility Features

All components follow WCAG 2.1 AA standards:

  • Proper ARIA labels

  • Keyboard navigation support

  • Focus management

  • Screen reader friendly

  • Error announcements

  • Color contrast compliance

Example:

<button type="submit" aria-label="Complete payment" aria-disabled={isProcessing} className="focus:ring-2 focus:ring-blue-500"

{isProcessing ? 'Processing...' : 'Pay Now'} </button>

Testing

Component Testing

Validate all components

bash scripts/validate-components.sh

Test specific component

bash scripts/validate-components.sh CheckoutForm

Integration Testing

Use Stripe test cards:

4242 4242 4242 4242 - Success 4000 0000 0000 0002 - Decline 4000 0000 0000 9995 - Insufficient funds

Examples

Example 1: Complete Checkout Page

Full checkout implementation with cart summary:

// See: examples/checkout-page-example.tsx // Complete page with: // - Order summary // - Checkout form // - Success/error handling // - Loading states // - Receipt generation

Example 2: Subscription Management

Subscription portal with upgrade/downgrade:

// See: examples/subscription-management-example.tsx // Complete portal with: // - Current plan display // - Pricing comparison // - Upgrade/downgrade flow // - Cancellation handling // - Invoice history

Example 3: Payment Form Integration

Integrate payment form in multi-step flow:

// See: examples/payment-form-integration-example.tsx // Multi-step checkout with: // - Shipping information // - Payment details // - Order confirmation // - Progress indicator

Environment Setup

Required environment variables:

.env.local (NEVER commit this file)

NEXT_PUBLIC_STRIPE_PUBLISHABLE_KEY=pk_test_your_key_here STRIPE_SECRET_KEY=sk_test_your_key_here STRIPE_WEBHOOK_SECRET=whsec_your_webhook_secret_here

Optional

NEXT_PUBLIC_STRIPE_CURRENCY=usd NEXT_PUBLIC_APP_URL=http://localhost:3000

Add to .gitignore :

.env.local .env.*.local .env

Requirements

Dependencies:

  • Next.js 13+ with App Router

  • React 18+

  • TypeScript 5+

  • Tailwind CSS 3+

  • @stripe/stripe-js

  • @stripe/react-stripe-js

Stripe Setup:

  • Stripe account (test mode works)

  • Publishable key

  • Secret key

  • Webhook endpoint configured

Security Best Practices

Never expose secret keys client-side

  • Only use NEXT_PUBLIC_STRIPE_PUBLISHABLE_KEY in components

  • Secret key stays server-side only

Validate on server

  • Always verify payments server-side

  • Use webhooks for payment confirmations

  • Never trust client-side data

Use HTTPS in production

  • Required for Stripe integration

  • Protects payment data in transit

Implement CSP headers

  • Allow Stripe.js domain

  • Restrict other script sources

Handle PCI compliance

  • Never store card numbers

  • Use Stripe Elements (SAQ A compliant)

  • Let Stripe handle card data

Troubleshooting

Stripe.js Not Loading

Check environment variable:

echo $NEXT_PUBLIC_STRIPE_PUBLISHABLE_KEY

Verify format starts with pk_test_ or pk_live_

Payment Intent Creation Fails

Ensure server-side API route exists:

// app/api/create-payment-intent/route.ts import { stripe } from '@/lib/stripe-server';

export async function POST(req: Request) { const { amount } = await req.json();

const paymentIntent = await stripe.paymentIntents.create({ amount, currency: 'usd', });

return Response.json({ clientSecret: paymentIntent.client_secret }); }

Component Not Rendering

Verify StripeProvider wraps component:

// Must be wrapped <StripeProvider> <CheckoutForm /> </StripeProvider>

Resources

Scripts:

  • scripts/install-stripe-react.sh

  • Install dependencies

  • scripts/setup-stripe-provider.sh

  • Configure provider

  • scripts/generate-component.sh

  • Generate new components

  • scripts/validate-components.sh

  • Validate setup

Templates:

  • templates/StripeProvider.tsx

  • Provider wrapper

  • templates/CheckoutForm.tsx

  • Checkout form

  • templates/PaymentMethodForm.tsx

  • Payment method input

  • templates/SubscriptionCard.tsx

  • Subscription display

  • templates/PricingTable.tsx

  • Pricing comparison

  • templates/PaymentHistory.tsx

  • Transaction history

Examples:

  • examples/checkout-page-example.tsx

  • Complete checkout

  • examples/subscription-management-example.tsx

  • Subscription UI

  • examples/payment-form-integration-example.tsx

  • Multi-step flow

Plugin: payments Version: 1.0.0 Category: UI Components Framework: Next.js + Stripe Elements

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