Used to check for browser translation.
用于检测浏览器翻译。
ブラウザの翻訳を検出する

Core Concepts

This section provides practical guides for implementing the most common payment workflows using the PaymentKit Node.js SDK. Whether you need to process single charges, set up recurring subscriptions, or implement a usage-based credit model, these guides will walk you through the key concepts and provide working code examples.

Understanding these core workflows is the first step toward building a robust payment integration. The following guides cover distinct billing models and essential mechanisms for handling payment events asynchronously.


One-Time Payments

Learn how to accept single, non-recurring payments for goods or services. This model is ideal for e-commerce stores or any scenario where a customer pays once for a specific item.

Subscriptions

Implement recurring billing to charge customers on a set schedule (e.g., monthly or yearly). This guide covers creating and managing subscription plans for SaaS products and membership sites.

Credit-Based Billing

Set up a flexible, usage-based model where customers consume credits over time. This guide explains how to use meters to track usage and issue credit grants.

Credit Top-Up

Enable customers to purchase additional credits. This guide covers configuring credit currencies for manual top-ups or setting up automatic recharges.

Webhooks

Receive real-time notifications for events like `checkout.session.completed` or `customer.subscription.deleted` to automate backend processes and build a reliable payment system.


After exploring these core concepts, you will have a solid foundation for building your payment integration. For detailed information on every available method and parameter, proceed to the API Reference.

previous
Environments
next
One-Time Payments