Setting up various log levels in ngx-logger

I am working on an Angular project and interested in incorporating the ngx-logger framework to customize logging levels for specific components or classes.

For example, if my Angular application consists of 5 different components or classes and the Root level is set to INFO by default. I would like the ability to switch the logging level to DEBUG for only one specific component or class. This way, I will receive debug messages exclusively for that particular component or class without affecting the rest. Is it feasible to achieve this?

This functionality is akin to Java's Log4j, which enables users to configure distinct log levels for certain packages.

If ngx-logger does not offer this capability, do you happen to know of any other Angular logging frameworks that cater to such requirements?

angulartypescriptloggingngx-logger

Answer №1

The logger's log level is specific to its instance, so if you want different log levels for various components/modules, you'll need to create separate instances.

Here's an example for a component:

import { Component } from "@angular/core";
import { NGXLogger, NgxLoggerLevel } from "src/public_api";

@Component({
  templateUrl: './local-provider.component.html',
  providers: [NGXLogger],
})
export class LocalProviderComponent {

  constructor(public logger: NGXLogger) {
  }

  log(): void {
    this.logger.debug('Test');
  }

  changeLogLevel(): void {
    const config = this.logger.getConfigSnapshot()
    config.level = config.level === NgxLoggerLevel.TRACE ? NgxLoggerLevel.ERROR : NgxLoggerLevel.TRACE;
    this.logger.updateConfig(config);
  }
}

You can find the full example on the repository page here: https://github.com/dbfannin/ngx-logger/tree/master/projects/not-a-singleton

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