BitSwift

BitSwift is a mobile app that allows users to easily access market information about their favorite cryptocurrencies. The app provides real-time updates on cryptocurrency prices, market cap, 24-hour volume, and more. It is built using React Native, Expo, and Tamagui for a smooth and responsive user experience on both Android and iOS devices.

Table of Contents

• Prerequisites
• Features
• Installation
• Usage
• Technologies Used
• API Integration

Prerequisites

Before you begin, ensure you have met the following requirements:

• Yarn or npm: While this project was initially set up using Yarn, you can also use npm. If you prefer npm, replace the Yarn commands with the equivalent npm commands (e.g., use npm install instead of yarn install).
• CoinGecko API Key: Obtain a CoinGecko API key and add it to your .env file in the project root directory.

Features

• Real-time cryptocurrency price updates.
• View detailed information about selected cryptocurrencies.
• Responsive design optimized for both Android and iOS.
• Easy to navigate user interface.

Installation

To get started with BitSwift, follow these steps:

1. Clone the repository:

   git clone https://github.com/ManuGC22/bitswift.git
   cd bitswift

2. Install the dependencies:

   yarn install

3. Start the development server:

  yarn start

4. Follow the on-screen instructions to run the app on an Android or iOS simulator, or on a physical device using the Expo Go app.

Usage

Once the app is running:

• Home Screen: View the top cryptocurrencies by market cap, updated every 40 seconds.
• Crypto Detail View: Tap on any cryptocurrency to view more details, such as market cap, 24-hour volume, and all-time high.
• Real-Time Updates: The app will automatically refresh to provide the latest market information.

Technologies Used

• Expo: To simplify development and deployment.
• Tamagui: For consistent styling across components.
• CoinGecko API: For fetching real-time cryptocurrency data.
• TypeScript: To add static typing to JavaScript.
• Jest: For testing (if applicable).

API Integration

BitSwift integrates with the CoinGecko API to fetch real-time cryptocurrency data. The API key is stored in the .env file for security. The main endpoints used are:

const response = await fetch(
  `https://api.coingecko.com/api/v3/coins/markets?vs_currency=usd&order=market_cap_desc&per_page=5&page=1&sparkline=false&x_cg_demo_api_key=${API_KEY}`
);