Cryptocurrency Converter

A command-line cryptocurrency converter built in Ruby. Convert BTC, ETH, XRP, DASH and LTC to USD or EUR using live prices from the CryptoCompare API.

Features

• Convert cryptocurrency amounts to USD or EUR
• Live prices fetched from CryptoCompare API
• Supports decimal amounts (e.g. 0.5 BTC)
• Graceful error handling for network failures

########## Cryptocurrency Converter ##########
a) Convert to USD
b) Convert to EUR
q) Quit
Action: a
-----------Available Coins-----------
BTC, ETH, XRP, DASH, LTC
Coin: BTC
Amount: 0.5
--------------------------------------------------
            0.5 BTC = 31245.75 USD
--------------------------------------------------

Tech Stack

• Ruby 2.7+
• CryptoCompare API
• Ruby built-in net/http and json

Project Structure

• main.rb - Entry point and menu loop
• manager.rb - Business logic and API fetching
• coin.rb - Coin model

Full project on GitHub

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