Development – Page 4 – ITFROMZERO

Mastering unittest.mock: Don’t Let ‘Dead’ APIs Break Your Unit Tests

By admin April 10, 2026

Discover the power of unittest.mock in Python. Learn to mock APIs, databases, and handle system errors to make your Unit Tests faster, more stable, and professional.

Development

Swagger (OpenAPI 3.0): The Ultimate Way to Tame Your API Documentation Chaos

By admin April 8, 2026

Learn how to build and automate API documentation with Swagger (OpenAPI 3.0). A practical solution that saves developers 30% of communication overhead and brings a professional edge to any project.

Development

Building Efficient RESTful APIs with Node.js and Express: Design, Authentication, and Versioning

By admin April 7, 2026

After 6 months running a Node.js/Express API in production, this post distills what actually matters: structuring routes properly for REST, validating input with Joi, JWT authentication, and managing versioning so you never have to break existing clients.

Python

Python Profiling: Pro Tips for Troubleshooting Slow Code with cProfile and Py-Spy

By admin April 3, 2026

Stop guessing why your Python code is slow. This guide shows you how to use cProfile and Py-Spy to pinpoint bottlenecks and optimize performance based on real-world experience.

Python

Building ‘Blazing Fast’ APIs with FastAPI and Pydantic: From Zero to Production

By admin April 1, 2026

Building high-performance Python APIs is easy with FastAPI and Pydantic. This detailed guide covers setup, data validation, and expert async/await optimization.

Python

Packaging and Publishing Python Libraries to PyPI: Goodbye setup.py, Hello Poetry

By admin March 31, 2026

Forget the headaches of setup.py and requirements.txt. This guide helps you master Poetry to package and publish Python libraries to PyPI professionally, quickly, and error-free.

Development

Stop Silly Code Errors with Pre-commit Hooks, ESLint, and Prettier

By admin March 31, 2026

Don't let typos crash your system. A guide to setting up Husky, ESLint, and Prettier to automate code quality checks before every commit.

Development

Elevating Node.js with TypeScript: From Standard Configuration to Real-World Experience

By admin March 30, 2026

Setting up TypeScript for Node.js professionally isn't difficult. Learn how to configure tsconfig, manage Interfaces, and apply best practices to reduce backend runtime errors by 40%.

Python

Building REST APIs with Python Flask: From a 2 AM ‘Firefighting’ Shift to Real-World Solutions

By admin March 29, 2026

Don't let your Python scripts stay silent when requests come in. Learn to build REST APIs with Flask from real scenarios for smoother, professional data communication.