Integration Testing Node.js APIs with Jest and Supertest
Learn how to write integration tests for Node.js and Express APIs using Jest and Supertest. Test middleware, validation, error handling, and improve coverage with real-world examples.
Learn how to write integration tests for Node.js and Express APIs using Jest and Supertest. Test middleware, validation, error handling, and improve coverage with real-world examples.
In this guide, I’ll walk you through how to unit test an Express API in Node.js, using practical examples from a Task Manager project.
Discover how using Entities to encapsulate business logic and DTOs (Data Transfer Objects) to control data exposure creates secure, scalable, and maintainable API architecture.
Ports & Adapters pattern, also known as Hexagonal Architecture helps decouple business logic from external dependencies, making your app flexible, testable, and future-proof.
Delivering the right data at the right time is one of the most important responsibilities of a well-designed API. Users expect fast, accurate, and flexible querying — and that means your backend needs solid search, sort, and filter capabilities.
Is your API struggling with pagination? Are your queries getting slower as your dataset grows? If you’re still using offset-based pagination, that might be the culprit.
Struggling with pagination in your Node.js REST API? Offset pagination can make it simple to fetch data efficiently while keeping your backend scalable and responsive.
Discover the top 5 reasons to use Express for Node.js when building a REST API. From routing to request handling, static file serving, and JSON parsing, Express simplifies backend development and enhances efficiency. Learn why it’s the go-to framework for Node.js applications.
Learn how JSON Web Tokens (JWT) work, their structure, and why they are essential for securing API access. Discover best practices for implementing JWT in your authentication and authorization workflows.
Learn how to integrate Auth0 authentication into your Node.js Express API to securely authorize users. This step-by-step guide covers setting up Auth0, obtaining access tokens, and implementing authentication middleware for secure API access.