Learn how to use Morgan, a Node.js Express middleware logger to log request paths, status codes, duration, and more.
- [Instructor] It's good to avoid reinventing the wheel,…and we made a pretty square one a couple of videos ago…when we used the console to log requests.…As we saw, it worked, but it wasn't optimal.…Is there a better solution?…Yes, and it's called morgan.…Morgan is a no-JS HTTP request logger middleware…which supports servers including Express.…When logging, morgan includes a number of details…about the HTTP method, path requested, and content length.…
Morgan logs once the request is sent…so it can include the HTTP status code and response time,…which is really useful for debugging…and finding slow performance.…Optionally, morgan can also include the referrer…and user agent strain.…Morgan can be used with most loggers, including Winston.…Morgan provides some very convenient logging format defaults…including the standard Apache combined log output.…It also provides a system of token replacements…so you can easily create your own, or customize it.…
We're going to replace our console logger with morgan.…Switch over to VS Code.…
Author
Released
7/13/2018- Building a troubleshooting mindset
- Why measure performance?
- What's a microservice architecture?
- Managing microservices with PM2
- Effective logging strategies
- Debugging Node.js applications
- Benchmarking performance
- Profiling code execution
- Knowing what to optimize
Skill Level Intermediate
Duration
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Introduction
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What you should know3m 4s
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Using challenges44s
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Demo application tour4m 24s
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1. Build a Troubleshooting Mindset
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Finding what went wrong5m 11s
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Why measure performance?3m 12s
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Documenting problems2m 36s
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When is a problem resolved?4m 10s
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2. Introducing Microservices
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3. Effective Logging Strategies
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Why and what should I log?6m 26s
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Choosing a logging library5m 40s
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Request logging with Morgan6m 39s
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Correlating requests in logs6m 18s
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4. Debugging Node.js Applications
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Debugging isn't just logging3m 51s
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5. Measuring Performance
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Benchmarking performance4m 51s
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Profiling code execution7m 17s
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Conclusion
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Knowing what to optimize5m 13s
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Caching fundamentals2m 54s
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Next steps2m 23s
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Video: Request logging with Morgan