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If this boilerplate helps you build Ethereum mobile dapps faster - please star this project, every star makes us very happy!

🤝 Need help?

If you need help with setting up the boilerplate or have other questions - don't hesitate to write in our community forum and we will check asap. Forum link. The best thing about this boilerplate is the super active community ready to help at any time! We help each other.

🚀 Quick Start

💿 Install all dependencies:

cd ethereum-react-native-boilerplate
yarn install

cd ios
pod install

cd ..

🚴‍♂️ Run your App:

IMPORTANT:

• To run the app and be able to actually login do the following:

  • Make sure to have Xcode installed on your machine if you wish to run it in iOS development and Android Studio if you want it in Android.
  • For M1 users: Access apps folder then right click on Xcode and click on more info. Then select "Open Using Rosetta".
  • Connect a physical phone device. Open terminal/cmd and run adb devices and see if your android device id is listed.
  • Install your preferred wallet on your device: (Metamask, Trust Wallet etc..)

• IOS:

  • Command react-native run-ios for react-native-cli package users or npx react-native run-ios if you're using the latest recommended version of node.js

• Android:

  • Command react-native run-android for react-native-cli package users or npx react-native run-android if you're using the latest recommended version of node.js

What's New:

• React Native Debugger. Debugging your dapp in a browser is straightforward with React Native Debugger. Simply open the simulator on iOS and press cmd + d; for the Android emulator, press cmd + m and pick Debug from the React Native Debug menu. If you're using a physical device, simply shake it until the debugger menu appears.

🧭 Table of contents

• ethereum-react-native-boilerplate
• ⭐️ Star us
• 🤝 Need help?
• 🚀 Quick Start
• 🧭 Table of contents
• 🏗 Ethereum Components
  • <CryptoAuth />
  • <NativeBalance />
  • <ERC20Balance />
  • <Assets />
  • <RecentTransactions />
  • <TransactionDetails />
  • <Blockie />
  • <Address />
• 🧰 Ethereum Hooks
  • useERC20balance()
  • useNativeBalance()
  • useERC20Transfers()
  • useNativeTransactions()
  • useTokenPrice()
  • useNFTTransfers()
  • useNFTBalance()

🏗 Ethereum Components

🛠 The ready for use react-native-components are located in frontend/Components. They are designed to be used anywhere in your dApp.

<CryptoAuth />

📒 <CryptoAuth /> : Easy web3 authentication via WalletConnect.

<NativeBalance />

Options:

• chain: chain to fetch data from.

<ERC20Balance />

📨 <ERC20Balance /> : Displays all ERC20 Balances with Price. Options:

• chain: chain to fetch data from.

<Assets />

💰 <Assets /> : Screen to display all Chain ERC20 and NAtive Assets with Prices

<RecentTransactions />

💰 <RecentTransactions /> : Screen to display all Chain ERC20 Transactions

<TransactionDetails />

<TransactionDetails /> : Modal to display all ERC20 Transaction related content

<Blockie />

A custom Blockie indenticon generator for React Native.

Options:

• address: Address to generate Blockie Icon from.
• size: Size of the Icon. For more custom sizes, edit the component as to your liking

<Address />

Displays The user address that is copyable

🧰 Ethereum Hooks

useERC20balance()

💰 Gets all token balances of a current user or specified address.

Options:

• chain (optional): The blockchain to get data from. Valid values are listed on the intro page in the Transactions and Balances section. Default value: current chain.
• address (optional): A user address (i.e. 0x1a2b3x...). If specified, the user attached to the query is ignored and the address will be used instead.
• to_block (optional): The block number on which the balances should be checked

Returns (Object) : number of tokens and the array of token objects

const {fetchERC20Balance, assets} = useERC20Balance({chain: 'eth'});

useNativeBalance()

💰 Gets native balance for a current user or specified address.

Options:

• chain (optional): The blockchain to get data from. Default value: current chain.

Example:

import useNativeBalance from './hooks/useNativeBalance';

function NativeBalance() {
  const {nativeBalance} = useNativeBalance(chain);

  return (
    <View style={styles.itemView}>
      <Text style={styles.name}> {nativeBalance} </Text>
    </View>
  );
}

Example return of nativeBalance (string)

'0.1581 BNB';

useERC20Transfers()

🧾 Gets ERC20 token transfers of a current user or specified address.

Options:

• chain (optional): The blockchain to get data from. Valid values are listed on the intro page in the Transactions and Balances section. Default value: current chain.
• address (optional): A user address (i.e. 0x1a2b3x...). If specified, the user attached to the query is ignored and the address will be used instead.
• from_date (optional): The date from where to get the transactions (any format that is accepted by momentjs). Provide the param 'from_block' or 'from_date' If 'from_date' and 'from_block' are provided, 'from_block' will be used.
• to_date (optional): Get the transactions to this date (any format that is accepted by momentjs). Provide the param 'to_block' or 'to_date' If 'to_date' and 'to_block' are provided, 'to_block' will be used.
• from_block (optional): The minimum block number from where to get the transactions Provide the param 'from_block' or 'from_date' If 'from_date' and 'from_block' are provided, 'from_block' will be used.
• to_block (optional): The maximum block number from where to get the transactions. Provide the param 'to_block' or 'to_date' If 'to_date' and 'to_block' are provided, 'to_block' will be used.
• offset (optional): Offset.
• limit (optional): Limit.

Returns (Array) : ERC20 token transfers

useNativeTransactions()

🧾 Gets the transactions from the current user or specified address. Returns an object with the number of transactions and the array of native transactions

Options:

• chain (optional): The blockchain to get data from. Valid values are listed on the intro page in the Transactions and Balances section. Default value: current chain.
• address (optional): A user address (i.e. 0x1a2b3x...). If specified, the user attached to the query is ignored and the address will be used instead.
• from_date (optional): The date from where to get the transactions (any format that is accepted by momentjs). Provide the param 'from_block' or 'from_date' If 'from_date' and 'from_block' are provided, 'from_block' will be used.
• to_date (optional): Get the transactions to this date (any format that is accepted by momentjs). Provide the param 'to_block' or 'to_date' If 'to_date' and 'to_block' are provided, 'to_block' will be used.
• from_block (optional): The minimum block number from where to get the transactions Provide the param 'from_block' or 'from_date' If 'from_date' and 'from_block' are provided, 'from_block' will be used.
• to_block (optional): The maximum block number from where to get the transactions. Provide the param 'to_block' or 'to_date' If 'to_date' and 'to_block' are provided, 'to_block' will be used.
• offset (optional): Offset.
• limit (optional): Limit.

Returns (Array) : native transactions

useTokenPrice()

💰 Gets the price nominated in the native token and usd for a given token contract address

Options:

• chain (optional): The blockchain to get data from. Valid values are listed on the intro page in the Transactions and Balances section. Default value: current chain (if the chain is not supported it will use the Eth chain).
• address (optional): A user address (i.e. 0x1a2b3x...). If specified, the user attached to the query is ignored and the address will be used instead.
• exchange (optional): The factory name or address of the token exchange. Possible exchanges, for different chains are: ETH mainnet: uniswap-v3, sushiswap, uniswap-v2, BSC mainnet: pancakeswap-v2, pancakeswap-v1. Polygon mainnet: quickswap. If no exchange is specified, all exchanges are checked (in the order as listed above) until a valid pool has been found. Note that this request can take more time. So specifying the exchange will result in faster responses most of the time.
• to_block (optional): Returns the price for a given blocknumber (historical price-data).

Example

import {useTokenPrice} from './hooks/useTokenPrice';

const TokenPrice = () => {
  const {tokenPrice} = useTokenPrice({chain, tokenAddress});

  return (
    <View>
      <Text>{tokenPrice.usdPrice}</Text>