Nest.js is a server-side framework for building scalable web applications on Node.js using TypeScript or JavaScript. Built around a dependency injection engine inspired by Angular, it provides controllers for HTTP routing, providers for business logic, and modules for organization. The framework includes built-in features like pipes for validation, guards for authentication, and interceptors for cross-cutting concerns. It offers native support for data persistence through TypeORM, Sequelize, and Mongoose, along with DTO validation for handling user input. With its comprehensive architecture and CLI tooling, Nest.js provides an all-in-one solution for substantial server-side projects.
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