payment gateway integration boilerplate

This project is a reference implementation for integrating Stripe payment processing into an application. It provides a boilerplate for managing the end-to-end checkout lifecycle, specifically focusing on binding local user accounts to third-party payment identities. The implementation utilizes a payment checkout orchestrator to coordinate the creation of customer identities and checkout sessions. It includes a dedicated webhook processor and subscription state synchronizer to mirror external payment data into a local database, ensuring application state remains consistent with asynchronous p

This project is a production-ready boilerplate designed for building subscription-based web applications. It provides a foundational framework for managing user identity, persistent relational data, and recurring billing cycles within a unified development environment. The platform distinguishes itself by integrating secure authentication workflows with automated subscription management. It utilizes a schema-first approach to database interactions, ensuring data consistency through type-safe queries and versioned migrations. By incorporating native support for payment provider APIs, the syste

This project is a Next.js SaaS starter kit and billing boilerplate designed for building subscription-based software services. It provides a pre-configured foundation that integrates a PostgreSQL database schema with Stripe to manage recurring billing, tiered pricing models, and customer payment portals. The implementation features a synchronization system that uses webhooks to mirror external product data and subscription states into a local relational database. It includes an authentication layer that links external identity providers to user accounts and manages secure session tracking. T

This project is a foundational boilerplate for building software-as-a-service applications using Next.js, TypeScript, and Tailwind CSS. It provides a pre-configured project structure designed to accelerate the launch of a product. The kit integrates a conversational user interface that renders markdown responses from large language models. It includes a secure identity layer for user registration and session persistence across multiple authentication providers, alongside a billing system for managing tiered pricing plans and real-time payment updates. The technical surface covers a type-safe

Gumroad is a self-hosted e-commerce platform built with Ruby on Rails that enables creators to sell digital products directly to consumers through a customizable web storefront. At its core, it provides a complete digital product storefront with Stripe payment integration for processing transactions securely. The platform is structured as a Rails monolith using service objects to organize business logic, with PostgreSQL powering full-text search for product discovery and Rails migrations managing database schema changes. It handles file delivery through Active Storage backed by Amazon S3, mai

This project is a software-as-a-service application boilerplate and foundation designed to provide the core business infrastructure for building software services. It functions as a multi-tenant user management system that handles account creation, user authentication, and organizational team structures across multiple customer accounts. The kit integrates enterprise identity features, including a service for automating user and group management via the System for Cross-domain Identity Management standard. It also includes a billing implementation for managing recurring payments, one-time tra

Meet Genius