Learn to build a robust social media REST API using Node.js, Express, and MongoDB in this comprehensive tutorial. Develop essential features including user authentication, CRUD operations, and social interactions like following users and liking posts. Master the integration of MongoDB models with Node.js routers, and gain hands-on experience in creating a real-world application backend. Follow along to implement login and registration systems, user management, post creation and interaction, and explore advanced concepts such as nested asynchronous fetching. By the end of this tutorial, you'll have the skills to create a fully functional social media API ready for frontend integration.