#Nodejs inspector driver#
#Nodejs inspector skin#
#Nodejs inspector code#
#Nodejs inspector free#

* NodePicker is a proxy for the node picker functionality from WalkerFront instances * To be used by inspector front when it needs to select DOM elements. Loader.lazyRequireGetter(this, 'EventEmitter', 'devtools/shared/event-emitter') If a copy of the MPL was not distributed with this

#Nodejs inspector code#

If your code fires an exception but you don't want to block the execution, you can report the error to inspector manually for personal monitoring./* This Source Code Form is subject to the terms of the Mozilla Public If something goes wrong It will send a notification in real time, and after each release I can stay informed about the impact of the latest code refactor. It automates the detection of unknown issues so I no longer need to manually check the status of my apps continuously or wait reports directly from users. It's an unfortunate fact of life for developers which often also depends on problems caused by the connection between our application and other services. Some errors appear immediately after an update, while others pop up unpredictably. But the reality is, this is not always the case. I wish that every change I make to my code could be perfect. You will easily identify the impact of the new segment in the transaction timeline:īy default, every exception fired in your Nodejs app will be reported automatically to be sure you’re alerted for unpredictable errors in real time. Suppose you have a function that export data from the database in a csv file.

Thanks to our module you can add custom segments in your timeline in addition to those detected by default, to measure the impact that an hidden code block has on a transaction’s performance. Function that deals with files (pdf, excel, images).

#Nodejs inspector driver#

Inspector monitors database query, with many type of driver (mysql2, postgre, mongodb) by default, but there might be many critical statements in your code that needs to be monitored in terms of performance and errors: Launch the app with node app.js command, and navigate it in the browser on Instantly you will see transaction streams in your dashboard and for each transaction you can monitor what your application is executing in real-time: Now when your application receive a request Inspector automatically detect the most important events and create a visual representation of what happens inside your code during its normal operation to keep an eye on the behavior in execution. Run the npm command below in your terminal:Įnter fullscreen mode Exit fullscreen mode

It takes less than one minute to get started. NodeJS Code Execution Monitoring: how it works

#Nodejs inspector free#

In this article I'll use Express framework to build code snippets, but you are free to use Inspector in any Nodejs script. Inspector is an npm module to add real-time code execution monitoring to your NodeJS application, allowing you to work on continuous code changes while catching bugs and bottlenecks at a glance before users do. When I started to share my idea behind Inspector I realized that many developers know the problem: they spend a lot of time to investigate strange behaviors inside their application, but they didn't know that there's a solution to eliminate this complexity in two minutes, avoiding customer complaints or even the loss of the customer.īe the first to know if my application is in trouble 'before' users stumble onto the problem, drastically reduce the negative impact on their experience, giving me the right foundation to run a successful users acquisition process and to continually increase engagement with less interruptions as possible. In most of the projects I've worked on the 50% of the drawbacks for users were caused by simple code mistakes, but the more the application grows the more difficult it is to avoid these incidents. Furthermore users don't spend their time to report bugs, they just stop using our application, checking for another one that fits their needs better. I publish new code changes almost every day and unfortunately it's quite impossible to anticipate all the problems that could happen after every release.

#Nodejs inspector skin#

Hi, I'm Valerio software engineer from Italy and CTO at Inspector.Īs product owner I learned on my skin how an application issue can be so hard to fix, creating a negative impact on the users experience, or block new potential customers during on-boarding. Have you ever desired to watch your code running, instead of just imagining it?