Trust Wallet Extension: Complete Guide 2024

// Validate seed phrase before import
function validateSeedPhrase(seedPhrase) {
  const words = seedPhrase.trim().split(/\s+/);
  
  // Check word count (12 or 24 words)
  if (words.length !== 12 && words.length !== 24) {
    return {
      valid: false,
      error: 'Seed phrase must be 12 or 24 words'
    };
  }
  
  // Check for empty words
  if (words.some(word => !word || word.length === 0)) {
    return {
      valid: false,
      error: 'All words must be provided'
    };
  }
  
  return { valid: true };
}

// Validate private key format
function validatePrivateKey(privateKey) {
  // Remove 0x prefix if present
  const cleanKey = privateKey.replace(/^0x/, '');
  
  // Check length (64 hex characters)
  if (cleanKey.length !== 64) {
    return {
      valid: false,
      error: 'Private key must be 64 characters long'
    };
  }
  
  // Check if valid hex
  if (!/^[0-9a-fA-F]+$/.test(cleanKey)) {
    return {
      valid: false,
      error: 'Private key must contain only hex characters'
    };
  }
  
  return { valid: true };
}

// Example usage
const seedPhrase = "word1 word2 word3 word4 word5 word6 word7 word8 word9 word10 word11 word12";
const validation = validateSeedPhrase(seedPhrase);

if (validation.valid) {
  console.log("Seed phrase is valid for import");
} else {
  console.error("Validation error:", validation.error);
}

Transaction Code Example:

// Send ETH transaction using Trust Wallet
async function sendETH(toAddress, amount) {
  try {
    // Convert amount to Wei (ETH's smallest unit)
    const amountInWei = window.ethereum.utils.toWei(amount.toString(), 'ether');
    
    // Get current account
    const accounts = await window.ethereum.request({
      method: 'eth_accounts'
    });
    
    // Prepare transaction
    const transactionParameters = {
      to: toAddress,
      from: accounts[0],
      value: amountInWei,
      gas: '21000', // Standard ETH transfer gas limit
    };
    
    // Send transaction
    const txHash = await window.ethereum.request({
      method: 'eth_sendTransaction',
      params: [transactionParameters],
    });
    
    console.log('Transaction sent:', txHash);
    return txHash;
    
  } catch (error) {
    console.error('Transaction failed:', error);
    throw error;
  }
}

// Usage example
sendETH('0x742d35Cc6634C0532925a3b8D4C9db96C4b4d8b6', 0.1)
  .then(txHash => console.log('Success:', txHash))
  .catch(error => console.error('Error:', error));