Node.js logging plays a crucial role in supporting the entire software life cycle. Logs help us along the road, from development to debugging to designing new features. We can get insights, find faults much more quickly, and identify issues as they arise by examining the data in the logs. In today’s article, let’s explore what you need to know about Node.js logging. Let’s dive in.
What Is Node.js?
What Is Logging?
Logging is the process of keeping track of data about an application as it is being used. By examining the data, logs support us from the start to the debugging and addition of new features. We can also quickly fix issues and catch errors at an early stage with the help of logs.
How Are Logs Used?
Logs are used for debugging by developers and for planning and design by UX designers and product managers. Logs are also used by marketers who want to monitor how various components related to marketing campaigns are performing. Logs offer information that can be useful to everyone with a stake in the organization. You must transmit your logs to log analysis tools for additional analysis and reporting in order to obtain the value and insights you require from them.
What Should You Log?
It is crucial to choose what information to log in to Nodejs logging must be done on purpose, and there are a few important logging categories to consider. Despite the lack of a universal standard, typical Node.js logging settings include,
- Log: The default log stream for messages that are uncategorized or general.
- Info: Any notifications regarding the application’s routine usage.
- Debug: Messages used to acquire additional data during development and debugging operations that provide technical information about the system during runtime.
- Warn: Application bugs that may be a hint of larger problems compromising the application’s ability to continue functioning.
- Error: messages about anything that has a significant impact on how the application runs.
Each type can be tangentially connected to a particular objective. All logging levels in the Node.js console log are either an error or log and we can handle log events differently thanks to the various logging levels.
Using Node.js Logging
The first and most crucial step for a developer to work with a node.js logger is to install the node.js logger. Developers can save time by troubleshooting work by using the js log to assist them to understand what their code is actually doing.
Utilizing a node.js log has many benefits, one of which is that it makes it easier to comprehend how the source code functions. Programmers prefer to use the runtime’s console functions, such as console.log() to help debug source code errors. This makes it easier for developers to understand the program.