Solana SOL Transfers with Para

This walkthrough covers sending basic SOL transfers using Para with three different Solana libraries: Solana Web3.js (legacy), Solana Signers v2 (modern), and Coral Anchor (smart contracts). Each approach has different patterns for transaction construction and signing.

Prerequisites

You need an authenticated Para client and basic knowledge of Solana transactions.

Core Dependencies

Solana Web3.js
Solana Signers v2
Coral Anchor

npm install @getpara/react-sdk @getpara/solana-web3-integration @solana/web3.js

npm install @getpara/react-sdk @getpara/solana-signers-v2-integration @solana/kit @solana/transactions @solana-program/system

npm install @getpara/react-sdk @getpara/solana-web3-integration @solana/web3.js @coral-xyz/anchor

Connection Setup

RPC Configuration

Solana Web3.js
Solana Signers v2
Coral Anchor

import { Connection } from "@solana/web3.js";

const DEVNET_RPC_URL = "https://api.devnet.solana.com";

// Create Solana connection
const connection = new Connection(DEVNET_RPC_URL, "confirmed");

import { createHttpTransport } from "@solana/rpc-spec";
import { createSolanaRpc } from "@solana/kit";

const DEVNET_RPC_URL = "https://api.devnet.solana.com";

// Create HTTP transport
const transport = createHttpTransport({ url: DEVNET_RPC_URL });

// Create Kit RPC client
const kitRpc = createSolanaRpc({ transport });

// Create Para RPC client
const paraRpc = createHttpTransport({ url: DEVNET_RPC_URL });

import { Connection } from "@solana/web3.js";
import { AnchorProvider } from "@coral-xyz/anchor";

const DEVNET_RPC_URL = "https://api.devnet.solana.com";

// Create Solana connection
const connection = new Connection(DEVNET_RPC_URL, "confirmed");

Para Signer Setup

Solana Web3.js
Solana Signers v2
Coral Anchor

import { ParaSolanaWeb3Signer } from "@getpara/solana-web3-integration";
import { useAccount, useClient } from "@getpara/react-sdk";

// Get Para client and account
const client = useClient();
const { data: account } = useAccount();

// Create Para Solana signer
let signer: ParaSolanaWeb3Signer | null = null;

if (account?.isConnected && connection && client) {
  signer = new ParaSolanaWeb3Signer(client, connection);
}

import { createParaSolanaSigner } from "@getpara/solana-signers-v2-integration";
import { useAccount, useClient } from "@getpara/react-sdk";

// Get Para client and account
const client = useClient();
const { data: account } = useAccount();

// Create Para Solana signer
let signer: any = null;

if (account?.isConnected && paraRpc && client) {
  signer = createParaSolanaSigner({
    para: client,
    rpc: paraRpc
  });
}

import { ParaSolanaWeb3Signer } from "@getpara/solana-web3-integration";
import { AnchorProvider } from "@coral-xyz/anchor";
import { useAccount, useClient } from "@getpara/react-sdk";

// Get Para client and account
const client = useClient();
const { data: account } = useAccount();

// Create Para Solana signer and Anchor provider
let anchorProvider: AnchorProvider | null = null;

if (account?.isConnected && connection && client) {
  const signer = new ParaSolanaWeb3Signer(client, connection);
  
  // Create wallet adapter for Anchor
  const walletAdapter = {
    publicKey: signer.sender,
    signTransaction: async (tx: any) => await signer.signTransaction(tx),
    signAllTransactions: async (txs: any[]) => await signer.signAllTransactions(txs)
  };
  
  anchorProvider = new AnchorProvider(connection, walletAdapter, {
    commitment: "confirmed"
  });
}

Transaction Construction

Basic SOL Transfer

Solana Web3.js
Solana Signers v2
Coral Anchor

import { 
  Transaction, 
  SystemProgram, 
  PublicKey, 
  LAMPORTS_PER_SOL 
} from "@solana/web3.js";

const constructTransaction = async (
  toAddress: string,
  solAmount: string,
  fromPublicKey: PublicKey
) => {
  const toPubKey = new PublicKey(toAddress);
  const amountLamports = parseFloat(solAmount) * LAMPORTS_PER_SOL;

  // Create transaction
  const transaction = new Transaction();
  
  // Add transfer instruction
  transaction.add(
    SystemProgram.transfer({
      fromPubkey: fromPublicKey,
      toPubkey: toPubKey,
      lamports: BigInt(amountLamports)
    })
  );

  // Set transaction parameters
  const { blockhash } = await connection.getLatestBlockhash();
  transaction.recentBlockhash = blockhash;
  transaction.feePayer = fromPublicKey;

  return transaction;
};

import { pipe } from "@solana/transactions";
import { 
  getTransferSolInstruction,
  lamports,
  address 
} from "@solana-program/system";
import { 
  appendTransactionMessageInstruction,
  createTransactionMessage,
  setTransactionMessageFeePayerSigner,
  setTransactionMessageLifetimeUsingBlockhash
} from "@solana/transactions";

const constructTransaction = async (
  toAddress: string,
  solAmount: string,
  signerAddress: any
) => {
  // Get latest blockhash
  const { value: latestBlockhash } = await kitRpc.getLatestBlockhash().send();
  
  // Convert SOL to lamports
  const amountLamports = BigInt(parseFloat(solAmount) * 1e9);
  
  // Create transfer instruction
  const transferInstruction = getTransferSolInstruction({
    source: signerAddress,
    destination: address(toAddress),
    amount: lamports(amountLamports)
  });
  
  // Build transaction message
  const transactionMessage = pipe(
    createTransactionMessage({ version: 0 }),
    tx => setTransactionMessageFeePayerSigner(signerAddress, tx),
    tx => setTransactionMessageLifetimeUsingBlockhash(latestBlockhash.blockhash, tx),
    tx => appendTransactionMessageInstruction(transferInstruction, tx)
  );
  
  return transactionMessage;
};

import { 
  Transaction, 
  SystemProgram, 
  PublicKey, 
  LAMPORTS_PER_SOL 
} from "@solana/web3.js";

const constructTransaction = async (
  toAddress: string,
  solAmount: string,
  walletPublicKey: PublicKey
) => {
  const toPubKey = new PublicKey(toAddress);
  const amountLamports = parseFloat(solAmount) * LAMPORTS_PER_SOL;

  // Create transaction
  const transaction = new Transaction();
  
  // Add transfer instruction
  transaction.add(
    SystemProgram.transfer({
      fromPubkey: walletPublicKey,
      toPubkey: toPubKey,
      lamports: BigInt(amountLamports)
    })
  );

  // Set transaction parameters
  const { blockhash } = await connection.getLatestBlockhash();
  transaction.recentBlockhash = blockhash;
  transaction.feePayer = walletPublicKey;

  return transaction;
};

Balance Validation

Check Sufficient Balance

Solana Web3.js
Solana Signers v2
Coral Anchor

const validateTransaction = async (
  userPublicKey: PublicKey,
  solAmount: string
) => {
  // Get current balance
  const balanceLamports = await connection.getBalance(userPublicKey);
  
  // Calculate amount in lamports
  const amountLamports = parseFloat(solAmount) * LAMPORTS_PER_SOL;
  
  // Estimate transaction fee (5000 lamports is typical)
  const estimatedFee = 5000;
  const totalCost = amountLamports + estimatedFee;
  
  if (totalCost > balanceLamports) {
    throw new Error(
      `Insufficient balance. Need ${totalCost / LAMPORTS_PER_SOL} SOL, have ${balanceLamports / LAMPORTS_PER_SOL} SOL`
    );
  }
  
  return true;
};

const validateTransaction = async (
  signerAddress: any,
  solAmount: string
) => {
  // Get current balance
  const { value: balance } = await kitRpc.getBalance(signerAddress).send();
  
  // Calculate amount in lamports
  const amountLamports = BigInt(parseFloat(solAmount) * 1e9);
  
  // Estimate transaction fee
  const estimatedFee = BigInt(5000);
  const totalCost = amountLamports + estimatedFee;
  
  if (totalCost > balance) {
    throw new Error(
      `Insufficient balance. Need ${Number(totalCost) / 1e9} SOL, have ${Number(balance) / 1e9} SOL`
    );
  }
  
  return true;
};

const validateTransaction = async (
  walletPublicKey: PublicKey,
  solAmount: string
) => {
  // Get current balance
  const balanceLamports = await connection.getBalance(walletPublicKey);
  
  // Calculate amount in lamports
  const amountLamports = parseFloat(solAmount) * LAMPORTS_PER_SOL;
  
  // Estimate transaction fee
  const estimatedFee = 5000;
  const totalCost = amountLamports + estimatedFee;
  
  if (totalCost > balanceLamports) {
    throw new Error(
      `Insufficient balance. Need ${totalCost / LAMPORTS_PER_SOL} SOL, have ${balanceLamports / LAMPORTS_PER_SOL} SOL`
    );
  }
  
  return true;
};

Sending Transactions

Execute Transfer

Solana Web3.js
Solana Signers v2
Coral Anchor

const sendSolTransfer = async (
  toAddress: string,
  solAmount: string,
  fromPublicKey: PublicKey
) => {
  // Validate transaction
  await validateTransaction(fromPublicKey, solAmount);
  
  // Construct transaction
  const transaction = await constructTransaction(toAddress, solAmount, fromPublicKey);
  
  // Send transaction using Para signer
  const txSignature = await signer.sendTransaction(transaction);
  
  console.log("Transaction sent:", txSignature);
  
  // Wait for confirmation with polling
  let receipt = null;
  while (!receipt) {
    receipt = await connection.getSignatureStatus(txSignature, {
      searchTransactionHistory: true
    });
    
    if (receipt?.value?.confirmationStatus === "confirmed" || 
        receipt?.value?.confirmationStatus === "finalized") {
      break;
    }
    
    // Wait 500ms before next check
    await new Promise(resolve => setTimeout(resolve, 500));
  }
  
  console.log("Transaction confirmed:", receipt);
  
  return {
    signature: txSignature,
    status: receipt?.value?.confirmationStatus,
    slot: receipt?.value?.slot
  };
};

import { 
  compileTransaction,
  getBase64EncodedWireTransaction 
} from "@solana/transactions";

const sendSolTransfer = async (
  toAddress: string,
  solAmount: string,
  signerAddress: any
) => {
  // Validate transaction
  await validateTransaction(signerAddress, solAmount);
  
  // Construct transaction message
  const transactionMessage = await constructTransaction(toAddress, solAmount, signerAddress);
  
  // Sign transaction
  const [signedTransaction] = await signer.modifyAndSignTransactions([
    compileTransaction(transactionMessage)
  ]);
  
  // Serialize transaction
  const serializedTransaction = getBase64EncodedWireTransaction(signedTransaction);
  
  // Send transaction
  const { value: signature } = await kitRpc.sendTransaction(
    serializedTransaction,
    { 
      encoding: "base64",
      skipPreflight: false,
      preflightCommitment: "confirmed"
    }
  ).send();
  
  console.log("Transaction sent:", signature);
  
  // Wait for confirmation
  const { value: statuses } = await kitRpc.getSignatureStatuses([signature]).send();
  const status = statuses[0];
  
  console.log("Transaction confirmed:", status);
  
  return {
    signature,
    status: status?.confirmationStatus,
    slot: status?.slot
  };
};

const sendSolTransfer = async (
  toAddress: string,
  solAmount: string,
  walletPublicKey: PublicKey
) => {
  // Validate transaction
  await validateTransaction(walletPublicKey, solAmount);
  
  // Construct transaction
  const transaction = await constructTransaction(toAddress, solAmount, walletPublicKey);
  
  // Send and confirm transaction using Anchor provider
  const txSignature = await anchorProvider.sendAndConfirm(transaction);
  
  console.log("Transaction sent and confirmed:", txSignature);
  
  return {
    signature: txSignature,
    status: "confirmed"
  };
};

Complete Implementation Example

Full Transfer Service

Solana Web3.js
Solana Signers v2
Coral Anchor

import { 
  Connection, 
  Transaction, 
  SystemProgram, 
  PublicKey, 
  LAMPORTS_PER_SOL 
} from "@solana/web3.js";
import { ParaSolanaWeb3Signer } from "@getpara/solana-web3-integration";

class SolanaWeb3TransferService {
  private connection: Connection;
  private signer: ParaSolanaWeb3Signer;
  
  constructor(rpcUrl: string, paraClient: any) {
    this.connection = new Connection(rpcUrl, "confirmed");
    this.signer = new ParaSolanaWeb3Signer(paraClient, this.connection);
  }
  
  async transfer(toAddress: string, solAmount: string) {
    try {
      const fromPublicKey = this.signer.sender;
      
      // Validate balance
      const balanceLamports = await this.connection.getBalance(fromPublicKey);
      const amountLamports = parseFloat(solAmount) * LAMPORTS_PER_SOL;
      const estimatedFee = 5000;
      
      if (balanceLamports < amountLamports + estimatedFee) {
        throw new Error("Insufficient balance");
      }
      
      // Create transaction
      const transaction = new Transaction().add(
        SystemProgram.transfer({
          fromPubkey: fromPublicKey,
          toPubkey: new PublicKey(toAddress),
          lamports: BigInt(amountLamports)
        })
      );
      
      const { blockhash } = await this.connection.getLatestBlockhash();
      transaction.recentBlockhash = blockhash;
      transaction.feePayer = fromPublicKey;
      
      // Send transaction
      const signature = await this.signer.sendTransaction(transaction);
      
      // Wait for confirmation
      await this.connection.confirmTransaction(signature);
      
      return { success: true, signature };
      
    } catch (error) {
      console.error("Transfer failed:", error);
      throw error;
    }
  }
}

import { pipe } from "@solana/transactions";
import { createSolanaRpc, createHttpTransport } from "@solana/kit";
import { getTransferSolInstruction, lamports, address } from "@solana-program/system";
import { createParaSolanaSigner } from "@getpara/solana-signers-v2-integration";

class SolanaSignersTransferService {
  private kitRpc: any;
  private signer: any;
  
  constructor(rpcUrl: string, paraClient: any) {
    const transport = createHttpTransport({ url: rpcUrl });
    this.kitRpc = createSolanaRpc({ transport });
    
    this.signer = createParaSolanaSigner({
      para: paraClient,
      rpc: createHttpTransport({ url: rpcUrl })
    });
  }
  
  async transfer(toAddress: string, solAmount: string) {
    try {
      const signerAddress = this.signer.address;
      
      // Validate balance
      const { value: balance } = await this.kitRpc.getBalance(signerAddress).send();
      const amountLamports = BigInt(parseFloat(solAmount) * 1e9);
      const estimatedFee = BigInt(5000);
      
      if (balance < amountLamports + estimatedFee) {
        throw new Error("Insufficient balance");
      }
      
      // Get latest blockhash
      const { value: latestBlockhash } = await this.kitRpc.getLatestBlockhash().send();
      
      // Create transfer instruction
      const transferInstruction = getTransferSolInstruction({
        source: signerAddress,
        destination: address(toAddress),
        amount: lamports(amountLamports)
      });
      
      // Build and sign transaction
      const transactionMessage = pipe(
        createTransactionMessage({ version: 0 }),
        tx => setTransactionMessageFeePayerSigner(signerAddress, tx),
        tx => setTransactionMessageLifetimeUsingBlockhash(latestBlockhash.blockhash, tx),
        tx => appendTransactionMessageInstruction(transferInstruction, tx)
      );
      
      const [signedTransaction] = await this.signer.modifyAndSignTransactions([
        compileTransaction(transactionMessage)
      ]);
      
      // Send transaction
      const serialized = getBase64EncodedWireTransaction(signedTransaction);
      const { value: signature } = await this.kitRpc.sendTransaction(serialized).send();
      
      return { success: true, signature };
      
    } catch (error) {
      console.error("Transfer failed:", error);
      throw error;
    }
  }
}

import { 
  Connection, 
  Transaction, 
  SystemProgram, 
  PublicKey, 
  LAMPORTS_PER_SOL 
} from "@solana/web3.js";
import { AnchorProvider } from "@coral-xyz/anchor";
import { ParaSolanaWeb3Signer } from "@getpara/solana-web3-integration";

class AnchorTransferService {
  private connection: Connection;
  private anchorProvider: AnchorProvider;
  
  constructor(rpcUrl: string, paraClient: any) {
    this.connection = new Connection(rpcUrl, "confirmed");
    
    const signer = new ParaSolanaWeb3Signer(paraClient, this.connection);
    
    const walletAdapter = {
      publicKey: signer.sender,
      signTransaction: async (tx: any) => await signer.signTransaction(tx),
      signAllTransactions: async (txs: any[]) => await signer.signAllTransactions(txs)
    };
    
    this.anchorProvider = new AnchorProvider(this.connection, walletAdapter, {
      commitment: "confirmed"
    });
  }
  
  async transfer(toAddress: string, solAmount: string) {
    try {
      const fromPublicKey = this.anchorProvider.wallet.publicKey;
      
      // Validate balance
      const balanceLamports = await this.connection.getBalance(fromPublicKey);
      const amountLamports = parseFloat(solAmount) * LAMPORTS_PER_SOL;
      const estimatedFee = 5000;
      
      if (balanceLamports < amountLamports + estimatedFee) {
        throw new Error("Insufficient balance");
      }
      
      // Create transaction
      const transaction = new Transaction().add(
        SystemProgram.transfer({
          fromPubkey: fromPublicKey,
          toPubkey: new PublicKey(toAddress),
          lamports: BigInt(amountLamports)
        })
      );
      
      const { blockhash } = await this.connection.getLatestBlockhash();
      transaction.recentBlockhash = blockhash;
      transaction.feePayer = fromPublicKey;
      
      // Send and confirm transaction
      const signature = await this.anchorProvider.sendAndConfirm(transaction);
      
      return { success: true, signature };
      
    } catch (error) {
      console.error("Transfer failed:", error);
      throw error;
    }
  }
}

Key Differences

Library Comparison

Feature	Solana Web3.js	Solana Signers v2	Coral Anchor
Status	Legacy	Modern/Recommended	Smart Contracts
Transaction Type	`Transaction`	`TransactionMessage`	`Transaction`
Instruction Creation	`SystemProgram.transfer()`	`getTransferSolInstruction()`	`SystemProgram.transfer()`
Signing	`signer.sendTransaction()`	`signer.modifyAndSignTransactions()`	`provider.sendAndConfirm()`
Amount Format	`BigInt(lamports)`	`lamports(bigint)`	`BigInt(lamports)`
Confirmation	Manual polling	Status check	Automatic

Transaction Construction Patterns

Solana Web3.js
Solana Signers v2
Coral Anchor

// Legacy approach with Transaction class
const transaction = new Transaction();
transaction.add(SystemProgram.transfer({...}));
transaction.recentBlockhash = blockhash;
transaction.feePayer = publicKey;

// Modern functional approach with pipes
const transactionMessage = pipe(
  createTransactionMessage({ version: 0 }),
  tx => setTransactionMessageFeePayerSigner(signer, tx),
  tx => setTransactionMessageLifetimeUsingBlockhash(blockhash, tx),
  tx => appendTransactionMessageInstruction(instruction, tx)
);

// Anchor provider abstraction
const transaction = new Transaction();
transaction.add(SystemProgram.transfer({...}));
// Provider handles blockhash and fee payer automatically
const signature = await provider.sendAndConfirm(transaction);

Best Practices

Library Selection

Solana Web3.js: Use for compatibility with existing projects, but consider migrating
Solana Signers v2: Recommended for new projects, modern patterns, better performance
Coral Anchor: Best for dApps interacting with Anchor-based smart contracts

Transaction Safety

Always validate recipient addresses using PublicKey constructor
Check balance including fees before transaction construction
Use appropriate commitment levels (“confirmed” for most cases)
Handle network errors gracefully with proper retry logic
Monitor transaction confirmation rather than assuming success

Step-by-Step Guides

Solana SOL Transfers with Para

Prerequisites

Core Dependencies

Connection Setup

RPC Configuration

Para Signer Setup

Transaction Construction

Basic SOL Transfer

Balance Validation

Check Sufficient Balance

Sending Transactions

Execute Transfer

Complete Implementation Example

Full Transfer Service

Key Differences

Library Comparison

Transaction Construction Patterns

Best Practices

Library Selection

Transaction Safety

Performance Optimization

Next Steps

SPL Token Transfers

Solana Programs

Step-by-Step Guides

​Prerequisites

​Core Dependencies

​Connection Setup

​RPC Configuration

​Para Signer Setup

​Transaction Construction

​Basic SOL Transfer

​Balance Validation

​Check Sufficient Balance

​Sending Transactions

​Execute Transfer

​Complete Implementation Example

​Full Transfer Service

​Key Differences

​Library Comparison

​Transaction Construction Patterns

​Best Practices

​Library Selection

​Transaction Safety

​Performance Optimization

​Next Steps

SPL Token Transfers

Solana Programs

Prerequisites

Core Dependencies

Connection Setup

RPC Configuration

Para Signer Setup

Transaction Construction

Basic SOL Transfer

Balance Validation

Check Sufficient Balance

Sending Transactions

Execute Transfer

Complete Implementation Example

Full Transfer Service

Key Differences

Library Comparison

Transaction Construction Patterns

Best Practices

Library Selection

Transaction Safety

Performance Optimization

Next Steps