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Stackify All rights reserved. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Clinic.js is a library available to integrate with NodeJS applications to monitor and get critical performance parameters out of it. It provides insights that can translate into great ROI. Try running the script by specifying errorlog you want to watch like below: node tail.js development.log Open http://localhost:8000. Status codes are grouped into 100s, 200s, 300s, 400s, and 500s. Likewise, we can listen to the data using the .on() method. The cluster receives incoming (ingress) traffic from HTTP requests. Alternatively, instead of using the terminal, you can use simple JavaScript to set the environment variable through code. The expression bar looks like this: Metrics specific to the Node Exporter are prefixed with node_ and include metrics like node_cpu_seconds_total and node_exporter_build_info. You won't be getting any headers back. Here are some of them: NodeJS monitoring helps monitor latency, request rate, garbage collection, anomalies, workers, events, heartbeat, and more. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. It is a straightforward tool for those who run and monitor live production workloads from a CLI or web interface. It is a straightforward tool for those who run and monitor live production workloads from a CLI or web interface. It allows you to keep your application running forever, reload without downtime, and facilitate common system admin tasks. You can code the application from scratch or use HTTP debugging tools like mitmproxy and fiddler. Some Node.js modules, such as request, are reading the proxy information from the Windows environment variable (global proxy settings). The project is focused on providing the barebones to collect excellent application metrics spread across various activities like data transaction, network speed, database query performance, CPU and memory utilization, garbage collection, and others. This must be a difficult situation to be in. Node.js developers can find all the components of this tool under the Apache 2 License on Github. For a list of trademarks of The Linux Foundation, please see our Trademark Usage page. In this case all you need to do is include this line in your code: (make sure request-debug package is installed). Over the years, NodeJS has become a popularly used JavaScript framework for rapid micro-service and API development. Here are Pi-specific instructions on installing Node.js and NPM.