Skip to main content

​
Overview

This comprehensive example demonstrates all available functions in the Dynamic SVM SDK, showing the actual API usage patterns and how to handle common operations.

​
Complete Example Code

// Import statements
import { DynamicSvmWalletClient } from "@dynamic-labs-wallet/node-svm";
import {
  Connection,
  LAMPORTS_PER_SOL,
  PublicKey,
  SystemProgram,
  Transaction,
} from "@solana/web3.js";
import { ThresholdSignatureScheme } from "@dynamic-labs-wallet/node";
import fs from "fs";

// Initialize SVM client
export const authenticatedSvmClient = async () => {
  const client = new DynamicSvmWalletClient({
    environmentId: process.env.DYNAMIC_ENVIRONMENT_ID!,
  });

  await client.authenticateApiToken(process.env.DYNAMIC_AUTH_TOKEN!);
  return client;
};

// Example usage demonstrating all available functions
async function main() {
  try {
    console.log("🚀 Starting SVM Client Demo...\n");

    // Initialize the SVM client
    const svmClient = await authenticatedSvmClient();
    console.log("✅ SVM client authenticated successfully\n");

    // 1. Create a new SVM wallet
    console.log("📝 Creating new SVM wallet...");
    const svmWallet = await svmClient.createWalletAccount({
      thresholdSignatureScheme: ThresholdSignatureScheme.TWO_OF_TWO,
      onError: (error: Error) => {
        console.error("❌ SVM wallet creation error:", error);
      },
      backUpToClientShareService: true,
    });

    console.log("✅ SVM wallet created:", svmWallet.accountAddress);
    console.log("externalServerKeyShares:", svmWallet.externalServerKeyShares);
    console.log("rawPublicKey:", svmWallet.rawPublicKey);

    // Save wallet info to file
    fs.writeFileSync("svmWallet.json", JSON.stringify(svmWallet, null, 2));
    console.log("💾 Wallet saved to svmWallet.json\n");

    // 2. Get wallet information
    console.log("🔍 Getting wallet details...");
    try {
      const walletDetails = await svmClient.getWallet({
        accountAddress: svmWallet.accountAddress,
      });
      console.log("✅ Wallet details retrieved:", walletDetails);
    } catch (error) {
      console.log("⚠️ Could not retrieve wallet details:", error);
    }

    // 3. Get all SVM wallets
    console.log("\n📋 Getting all SVM wallets...");
    try {
      const allWallets = await svmClient.getSvmWallets();
      console.log("✅ Found", allWallets.length, "SVM wallets");
    } catch (error) {
      console.log("⚠️ Could not retrieve all wallets:", error);
    }

    // 4. Sign a message
    console.log("\n✍️ Signing a message...");
    try {
      const message = "Hello, Solana! This is a test message from Dynamic SVM wallet.";
      const signedMessage = await svmClient.signMessage({
        accountAddress: svmWallet.accountAddress,
        message,
      });
      console.log("✅ Message signed successfully");
      console.log("Signature:", signedMessage);
    } catch (error) {
      console.log("⚠️ Message signing failed:", error instanceof Error ? error.message : String(error));
    }

    // 5. Sign a transaction (Solana transfer example)
    console.log("\n💸 Preparing Solana transaction...");
    const connection = new Connection("https://api.devnet.solana.com", "confirmed");

    try {
      const amountInSol = 0.001;
      const recipientAddress = "EukgLDgaWNQRLemZSHK8Wc9EGhPhbG3wL9a1mxa3LHg6";

      // Create transaction
      const transaction = new Transaction().add(
        SystemProgram.transfer({
          fromPubkey: new PublicKey(svmWallet.accountAddress),
          toPubkey: new PublicKey(recipientAddress),
          lamports: amountInSol * LAMPORTS_PER_SOL,
        })
      );

      // Get latest blockhash
      const { blockhash } = await connection.getLatestBlockhash();
      transaction.recentBlockhash = blockhash;
      transaction.feePayer = new PublicKey(svmWallet.accountAddress);

      console.log("📝 Transaction prepared, signing with SVM wallet...");

      // Sign the transaction
      const signedTransaction = await svmClient.signTransaction({
        senderAddress: svmWallet.accountAddress,
        transaction,
      });

      console.log("✅ Transaction signed successfully");
      console.log("Signed transaction:", signedTransaction);
    } catch (error) {
      console.log("⚠️ Transaction signing failed:", error instanceof Error ? error.message : String(error));
    }

    // 6. Import private key (if you have one)
    console.log("\n🔑 Testing private key import...");
    try {
      const importedWallet = await svmClient.importPrivateKey({
        privateKey: "your-private-key-here", // Replace with actual private key
        chainName: "SVM",
        thresholdSignatureScheme: ThresholdSignatureScheme.TWO_OF_TWO,
        backUpToClientShareService: true,
        password: "test-password",
      });
      console.log("✅ Private key imported:", importedWallet.accountAddress);
    } catch (error) {
      console.log("ℹ️ Private key import skipped (no valid key provided)");
    }

    // 7. Export key information
    console.log("\n📤 Exporting key information...");
    try {
      const exportedKey = await svmClient.exportKey({
        accountAddress: svmWallet.accountAddress,
        chainName: "SVM",
      });
      console.log("✅ Key exported:", exportedKey);
    } catch (error) {
      console.log("ℹ️ Key export not available or requires additional setup");
    }

    // 8. Export private key
    console.log("\n🔓 Exporting private key...");
    try {
      const privateKey = await svmClient.exportPrivateKey({
        accountAddress: svmWallet.accountAddress,
      });
      console.log("✅ Private key exported:", privateKey);
    } catch (error) {
      console.log("ℹ️ Private key export not available or requires additional setup");
    }

    // 9. Test connection to Solana network
    console.log("\n🌐 Testing Solana network connection...");
    try {
      const balance = await connection.getBalance(new PublicKey(svmWallet.accountAddress));
      console.log("✅ Solana connection successful");
      console.log("Wallet balance:", balance / LAMPORTS_PER_SOL, "SOL");
    } catch (error) {
      console.log("ℹ️ Solana network connection test skipped");
    }

    console.log("\n🎉 SVM Client Demo completed successfully!");
    console.log("📁 Check svmWallet.json for wallet details");

    // Summary of what was accomplished
    console.log("\n📊 Demo Summary:");
    console.log("✅ Successfully completed:");
    console.log(`   • Created SVM wallet: ${svmWallet.accountAddress}`);
    console.log(`   • Raw public key: ${svmWallet.rawPublicKey}`);
    console.log(`   • External server key shares: ${svmWallet.externalServerKeyShares?.length || 0}`);
    console.log(`   • Solana network connection: Working`);

    // Try to get additional wallet details if available
    try {
      const walletDetails = await svmClient.getWallet({
        accountAddress: svmWallet.accountAddress,
      });
      console.log(`   • Wallet ID: ${walletDetails.walletId || "N/A"}`);
      console.log(`   • Threshold scheme: ${walletDetails.thresholdSignatureScheme || "N/A"}`);
      console.log(`   • Chain name: ${walletDetails.chainName || "N/A"}`);
    } catch (error) {
      console.log("   • Additional wallet details: Not available");
    }

  } catch (error) {
    console.error("❌ Error in SVM demo:", error);
  }
}

// Run the example
main();

​
Key API Patterns

​
1. Wallet Creation

const wallet = await svmClient.createWalletAccount({
  thresholdSignatureScheme: ThresholdSignatureScheme.TWO_OF_TWO,
  onError: (error: Error) => {
    console.error("Wallet creation error:", error);
  },
  backUpToClientShareService: true,
});

​
2. Message Signing

const signature = await svmClient.signMessage({
  message: "Hello, Solana!",
  accountAddress: wallet.accountAddress,
});

​
3. Transaction Signing

const signedTransaction = await svmClient.signTransaction({
  senderAddress: wallet.accountAddress,
  transaction: transaction,
});

​
4. Wallet Retrieval

const walletDetails = await svmClient.getWallet({
  accountAddress: wallet.accountAddress,
});

​
5. Getting All Wallets

const allWallets = await svmClient.getSvmWallets();

​
Available Functions

The SVM SDK provides the following main functions:
  • createWalletAccount() - Create new SVM wallet
  • importPrivateKey() - Import existing private key
  • getWallet() - Get specific wallet details
  • getSvmWallets() - Get all SVM wallets
  • signMessage() - Sign messages
  • signTransaction() - Sign transactions
  • exportKey() - Export wallet key data
  • exportPrivateKey() - Export private key

​
Error Handling

Always implement proper error handling: 
try {
  const result = await svmClient.someFunction(params);
  console.log("Operation successful:", result);
} catch (error) {
  console.error("Operation failed:", error instanceof Error ? error.message : String(error));
}

​
Environment Setup

Make sure you have these environment variables: 
DYNAMIC_AUTH_TOKEN=your_auth_token_here
DYNAMIC_ENVIRONMENT_ID=your_environment_id_here

​
Dependencies

Install required packages: 
bun add @dynamic-labs-wallet/node-svm @solana/web3.js @dynamic-labs-wallet/node

​
Next Steps