Node.js, an influential JavaScript runtime environment powered by Google’s V8 engine, has become a popular choice for developing non-blocking, event-driven applications, especially for HTTP APIs. Its native JSON support and lightweight frameworks like Express.js have made it ideal for quickly setting up RESTful and GraphQL APIs, contributing to its widespread use alongside the growth of React and Single Page Apps. Node.js is particularly well-suited for serverless applications on platforms like AWS Lambda due to its asynchronous programming capabilities, which include callbacks, Promises, and the async-await syntax introduced in ES2017. It offers extensive libraries and tools for API development, deployment, and database interaction, with package management handled via NPM. Various frameworks such as Express.js, Restify, and Hapi provide robust solutions for creating APIs, while tools like Sequelize and Mongoose facilitate database operations. The Node.js ecosystem also supports WebSocket implementations and real-time communication, reinforcing its role in modern web application development.