Environmental Data Tracker

The Environmental Data Tracker is a JavaScript package that allows you to fetch and store environmental data such as air quality and weather forecasts. It provides methods to interact with external APIs, process the data, and save it to files.

Installation

To use the Environmental Data Tracker in your Node.js project, install it via npm:

npm install environmental-data-tracker
usage
const EnvironmentalDataTracker = require('environmental-data-tracker');

// Replace 'your-api-key' with your actual API key
const tracker = new EnvironmentalDataTracker('your-api-key');

// Example usage:
tracker.fetchAirQuality('New York')
  .then(airQualityData => {
    console.log('Air quality data:', airQualityData);
    return tracker.fetchWeatherForecast('New York');
  })
  .then(weatherForecastData => {
    console.log('Weather forecast data:', weatherForecastData);
    return tracker.saveDataToFile(weatherForecastData, 'weather_forecast.json');
  })
  .catch(err => console.error('Error:', err));
API Methods
fetchAirQuality(city)
Fetches current air quality data for the specified city using the Weatherbit API.

Parameters:

city (string): Name of the city for which to fetch air quality data.
Returns: Promise that resolves with the fetched air quality data.

fetchWeatherForecast(city)
Fetches weather forecast data for the specified city using the OpenWeatherMap API.

Parameters:

city (string): Name of the city for which to fetch weather forecast data.
Returns: Promise that resolves with the fetched weather forecast data.

saveDataToFile(data, fileName)
Saves the provided data to a JSON file with the specified file name.

Parameters:

data (object): Data object to save to the file.
fileName (string): Name of the file to save the data to.
Returns: Promise that resolves when the data has been successfully saved to the file.
License
This project is licensed under the MIT License - see the LICENSE file for details.

### Explanation:

- **Installation:** Provides instructions on how to install the package using npm.
- **Usage:** Demonstrates how to use the package by instantiating `EnvironmentalDataTracker`, fetching air quality and weather forecast data, and saving data to a file.
- **API Methods:** Describes each method (`fetchAirQuality`, `fetchWeatherForecast`, `saveDataToFile`) including parameters, return values, and their purposes.
- **License:** Indicates the project's license (in this case, MIT License).

Make sure to replace `'your-api-key'` with your actual API key when using the package. Adjust the README as needed to include additional information or customization specific to your package.