bradtraversy/customerbase

Customerbase is a learning project that demonstrates how to build a backend system for managing customer data using GraphQL, a modern way to let applications request exactly the data they need. It handles standard "CRUD" operations, creating, reading, updating, and deleting customer records, all through a GraphQL interface rather than a traditional REST API with multiple endpoints. To run the project, you start two pieces. One is a lightweight mock database called JSON-Server, which stores customer information in a simple file and runs on port 3000. The other is the main Express server on port 4000, which translates GraphQL requests from your frontend, talks to the mock database to get or update data, and sends the response back. You also get access to GraphiQL, a browser-based interface where you can write and test queries visually before wiring up a real app. This project is aimed at developers learning GraphQL for the first time, especially those following Brad Traversy's tutorials. A typical user might be a beginner who understands basic JavaScript and wants to see a working example of GraphQL in action without setting up a full database like PostgreSQL or MongoDB. The included GraphiQL interface makes it easy to experiment with queries and mutations right in the browser. The README is minimal and doesn't explain the data structure or what customer fields are included, so you'd need to look at the code to see exactly what a customer record contains. The project trades production-readiness for simplicity, JSON-Server is fine for demos and learning, but wouldn't be what you'd use in a real production app. That said, for someone who just wants to understand how GraphQL fits into a Node.js and Express stack, it serves as a straightforward, hands-on starting point.