Exchange Rates Parser 💱

A simple Ruby application for fetching current exchange rates from the European Central Bank (ECB).

📋 Description

This application retrieves current exchange rates (USD, JPY, CZK) against the Euro from the official ECB XML feed and displays them in a human-readable format.

🚀 Features

• Fetches data via HTTP requests to the European Central Bank API
• Parses XML data with currency exchange rates
• Processes and formats exchange rate information
• Comprehensive error handling (HTTP, XML, network)

🛠 Technologies and Skills

Technologies Used:

• Ruby 3.2.3
• Ruby Standard Libraries:
  • net/http - for HTTP requests
  • rexml - for XML parsing
  • uri - for URL handling
  • date - for date manipulation

Applied Concepts:

• Object-Oriented Programming (OOP) - Rates class for data encapsulation
• HTTP API Integration - working with external REST APIs
• XML Parsing - processing structured data
• Exception Handling - robust error management for network and data issues
• Modularity - separating logic into individual files

▶️ Usage

ruby exchange.rb

📊 Sample Output

Date: 2025-11-04

Currency: USD

1 Euro is equal to: 1.0856 USD

Date: 2025-11-04

Currency: JPY

1 Euro is equal to: 165.32 JPY

Date: 2025-11-04

Currency: CZK

1 Euro is equal to: 25.285 CZK

📝 Project Structure

exchange/

├── exchange.rb # Main script for fetching and processing data

├── rates.rb # Class for representing exchange rates

├── .gitignore # Git exclusions

└── README.md # Project documentation

🔗 Data Source

ECB Daily Exchange Rates XML Feed