I built ReqScope — a local API request tracer for Express, because logs weren't enough

📰 Dev.to · Ali Abdiyev

Learn how to build a local API request tracer for Express to improve debugging beyond logging

intermediate Published 28 Apr 2026
Action Steps
  1. Build a local API request tracer using Node.js and Express
  2. Configure the tracer to track request and response times
  3. Test the tracer with a sample Express application
  4. Apply the tracer to a production-ready Express app
  5. Compare the tracer's output with traditional logging methods
Who Needs to Know This

Backend developers and engineers can benefit from this tool to debug and optimize their Express applications

Key Insight

💡 Logs aren't enough for debugging, a dedicated request tracer can provide more detailed insights

Share This
🚀 Improve Express debugging with ReqScope, a local API request tracer #Express #Debugging

Key Takeaways

Learn how to build a local API request tracer for Express to improve debugging beyond logging

Full Article

A few weeks ago I was debugging a POST /login endpoint that was occasionally taking 800ms...
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