Crypto-Fiat Converter Service

This service allows users to register cryptocurrencies, and convert between fiat and crypto currencies using real-time exchange rates. It integrates with external APIs for accurate pricing and runs a background worker to update exchange rates regularly.

Features

🔁 Currency Conversion

• Fiat to Crypto: Convert any amount in fiat currency (e.g., USD, EUR, GHS) to its equivalent in a registered cryptocurrency (e.g., BTC, ETH).
• Crypto to Fiat: Convert cryptocurrency amounts to their fiat currency equivalent.

💰 Coin Registration

• Easily register new coins you want to support in your application.
• Each registered coin is tracked and updated with the latest exchange rate.

🔄 Background Rate Updater

A background worker runs at scheduled intervals to fetch and update exchange rates from two main sources:

• CoinGecko – for cryptocurrency rates.
• OpenExchangeRates – for fiat currency rates.

Rates are stored in the cache for fast access during conversions.

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Example Use Case

Register a Coin

POST /api/CoinData/create-coin
{
  "symbol": "btc",
  "name": "Bitcoin"
}

Convert Btc to Eth

POST /api/CoinData/convert-coin-to-coin
{
  "amount":0.25,
  "fromCryptoSymbol": "btc",
  "toCryptoSymbol": "eth"
}

Convert ghs to btc

{
  "amount": 100,
  "cryptoSymbol": "btc",
  "toCurrency": "ghs"
}