in3/java/examples/SendTransaction.java at master · blockchainsllc/in3

51 lines (38 loc) · 1.49 KB

/// Sending Transactions

// In order to send, you need a Signer. The SimpleWallet class is a basic implementation which can be used.

package in3;

import in3.*;

import in3.eth1.*;

import java.io.IOException;

import java.math.BigInteger;

import java.nio.charset.StandardCharsets;

import java.nio.file.Files;

import java.nio.file.Paths;

public class SendTransaction {

public static void main(String[] args) throws IOException {

// create incubed

IN3 in3 = IN3.forChain(Chain.MAINNET); // set it to mainnet (which is also dthe default)

// create a wallet managing the private keys

SimpleWallet wallet = new SimpleWallet();

// add accounts by adding the private keys

String keyFile = "myKey.json";

String myPassphrase = "<secrect>";

// read the keyfile and decoded the private key

String account = wallet.addKeyStore(

Files.readString(Paths.get(keyFile)),

myPassphrase);

// use the wallet as signer

in3.setSigner(wallet);

String receipient = "0x1234567890123456789012345678901234567890";

BigInteger value = BigInteger.valueOf(100000);

// create a Transaction

TransactionRequest tx = new TransactionRequest();

tx.setFrom(account);

tx.setTo("0x1234567890123456789012345678901234567890");

tx.setFunction("transfer(address,uint256)");

tx.setParams(new Object[] {receipient, value});

String txHash = in3.getEth1API().sendTransaction(tx);

System.out.println("Transaction sent with hash = " + txHash);

}

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