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  1. Basics
  2. Logging
Basics

Logging


Introduction

When you need to know what's happening in your application, use the NyLogger class. Nylo provides a reliable logging tool you can use to print information to the console.

Example using NyLogger

import 'package:nylo_framework/nylo_framework.dart';
...

String name = 'Anthony';
String city = 'London';
int age = 18;

NyLogger.info(name); // [2024-01-01 11:30:30] Anthony

age.dump(); // [2024-01-01 11:30:30] 18

dunp(city); // [2024-01-01 11:30:30] London

Why use NyLogger?

NyLogger may appear similar to print in Flutter, however, there's more to it.

If your application's .env variable APP_DEBUG is set to false, NyLogger will not print to the console.

In some scenarios you may want to print while your application's APP_DEBUG is false, the showNextLog helper can be used for that.

// .env
APP_DEBUG=false

// usage for showNextLog
String name = 'Anthony';
String country = 'UK';
List<String> favouriteCountries = ['Spain', 'USA', 'Canada'];

NyLogger.info(name);

showNextLog();
NyLogger.debug(country); // UK

NyLogger.debug(favouriteCountries);


Log Levels

You can use the following log levels:

  • NyLogger.info(dynamic message)
  • NyLogger.debug(dynamic message)
  • NyLogger.dump(dynamic message)
  • NyLogger.error(dynamic message)
  • NyLogger.json(dynamic message)


Helpers

You can print data easily using the dump or dd extension helpers. They can be called from your objects, like in the below example.

String project = 'Nylo';
List<String> seasons = ['Spring', 'Summer', 'Fall', 'Winter'];

project.dump(); // 'Nylo'
seasons.dump(); // ['Spring', 'Summer', 'Fall', 'Winter']

String code = 'Dart';

code.dd(); // Prints: 'Dart' and exits the code