Introduction to ee-logger

The ee-logger is a highly efficient and versatile logging library designed to simplify logging in your applications. It provides a wide array of APIs that ensure comprehensive logging functionality, making it easier to debug and maintain your projects.

Basic Configuration

Setting up ee-logger is straightforward. Here’s how you can configure it for your application:

const Logger = require('ee-logger');
const log = new Logger();

Logging Levels

ee-logger supports various logging levels for different needs:

log.info('This is an info message');
log.debug('This is a debug message');
log.warn('This is a warning message');
log.error('This is an error message');

Customized Log Messages

Customize your log messages by adding contextual information:

log.info('User logged in', { userId: 123, username: 'johndoe' });
log.error('Failed to save data', { requestId: 'abc123', error: error.message });

Advanced API Examples

The ee-logger provides advanced capabilities for more complex logging scenarios:

Conditional Logging

if (process.env.NODE_ENV !== 'production') {
  log.debug('Debugging application');
}

Asynchronous Logging

async function fetchData() {
  log.info('Fetching data from API');
  try {
    const data = await api.getData();
    log.info('Data fetched successfully', { data });
  } catch (error) {
    log.error('Error fetching data', { error: error.message });
  }
}
fetchData();

Application Example with ee-logger

Here’s a sample application using various ee-logger APIs:

const Logger = require('ee-logger');
const log = new Logger();

async function performTask() {
  log.info('Task started');

  try {
    log.debug('Attempting to connect to database');
    await database.connect();
    log.info('Database connected successfully');

    const result = await performComplexCalculation();
    log.info('Calculation performed', { result });

    await database.save(result);
    log.info('Result saved to database');
  } catch (error) {
    log.error('Error performing task', { error: error.message });
  }

  log.info('Task completed');
}

async function performComplexCalculation() {
  log.debug('Performing complex calculation');
  // Simulated calculation
  return new Promise((resolve, reject) => {
    setTimeout(() => {
      resolve('Calculation result');
    }, 1000);
  });
}

// Execute the task
performTask();

ee-logger ensures that every significant event in your application is logged, making troubleshooting and maintenance easier.

For more detailed documentation and additional examples, refer to the ee-logger official documentation.

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