How to Build a RESTful API in Node.js (with Express.js)

The tutorial provides a comprehensive guide to building a RESTful API using Node.js and Express.js, detailing the installation and setup of necessary tools like Node Version Manager (nvm), npm, and Express for creating scalable APIs. It walks through the creation of a sports statistics API, illustrating the process of setting up GET, POST, PUT, and DELETE methods to manage player statistics stored in a JSON file. The guide also emphasizes best practices such as versioning API endpoints and concludes by explaining how to deploy the API on Heroku, highlighting the steps to set up a Heroku application, commit code using Git, and scale the application. Additionally, it touches on testing the API with tools like PostMan and mentions the potential for connecting to production databases and scaling the application for broader use.