jyoo980 / crypto-exchange

iOS cryptocurrency exchange-rate app, custom caching for API calls and data.

crypto-exchange

An easy way to check the most up-to-date exchange rates between popular cryptocurrencies and real-world currency. crypo-exchange uses the CryptoCompare API to get the exchange rates for over 5 commonly used cryptocurrencies, and stores them in a custom cache. crypo-exchange also shows historical exchange rate data for cryptocurrencies, going back up to a year. Below are some screenshots of the app in action. You can also 3D touch anywhere on the app screen to view some statistics for a given cryptocurrency.

Development Requirements

• To use Charts for iOS, you need to install Cocoapods via Ruby. Luckily, macOS ships with Ruby in the base installation, so all you need to do after cloning this repo is to cd into crypto-exchange and run sudo gem install cocoapods, then run pod install.

Features and Tech Stack

• CryptoCompare API (for most up-to-date exchange rates)
• Coinbin API (for historical exchange rates)
• CoinMarketCap API (for 3D Touch data)
• Charts for iOS
• Custom Caching - ExchangeRateCache.swift, GraphDataCache.swift
• 3D Touch integration

Current facts

• Currently supports: BCH, BTC, BTG, DOGE, ETH, LTC, and XRP
• Conversion rate data available for: CAD, EUR, GBP, JPY, and USD
• 3D Touch data includes % changes per hour, day, and week for all crypocurrencies

Todos

• Refactor into MVC architecture - Tentatively Complete
• Introduce caching for API calls (workaround for 100 requests/24hr limit) - Complete
• Refactor to use with API which has unlimited calls - Complete
• Introduce caching for historical data graphs - Complete

Note: new TODOs can be seen in the projects section of this repository.

crypto-exchange's Issues

ExchangeCacheRequest() is misssing still file is present in project

ExchangeCacheRequest() shows missing with this error - Use of unresolved identifier 'ExchangeCacheRequest'
in appdelegate var name is 'exchangeCache' another issue is in view controller there is also missing variable related to this file same file is present in project error is - CoinExchangeRequest
image is uploaded below.