/**
* 'fund' the txBuilder with UTXOs (modified in place)
*
* @param TransactionBuilder $txBuilder
* @param bool|true $lockUTXOs
* @param bool|false $allowZeroConf
* @param null|int $forceFee
* @return TransactionBuilder
*/
public function coinSelectionForTxBuilder(TransactionBuilder $txBuilder, $lockUTXOs = true, $allowZeroConf = false, $forceFee = null)
{
// get the data we should use for this transaction
$coinSelection = $this->coinSelection($txBuilder->getOutputs(), $lockUTXOs, $allowZeroConf, $forceFee);
$utxos = $coinSelection['utxos'];
$fee = $coinSelection['fee'];
$change = $coinSelection['change'];
if ($forceFee !== null) {
$txBuilder->setFee($forceFee);
} else {
$txBuilder->validateChange($change);
$txBuilder->validateFee($fee);
}
foreach ($utxos as $utxo) {
$txBuilder->spendOutput($utxo['hash'], $utxo['idx'], $utxo['value'], $utxo['address'], $utxo['scriptpubkey_hex'], $utxo['path'], $utxo['redeem_script']);
}
return $txBuilder;
}
<?php
use Blocktrail\SDK\BlocktrailSDK;
use Blocktrail\SDK\Connection\Exceptions\ObjectNotFound;
use Blocktrail\SDK\TransactionBuilder;
use Blocktrail\SDK\Wallet;
use Blocktrail\SDK\WalletInterface;
require_once __DIR__ . "/../vendor/autoload.php";
$client = new BlocktrailSDK("MY_APIKEY", "MY_APISECRET", "BTC", true, 'v1');
// $client->setVerboseErrors();
// $client->setCurlDebugging();
/**
* @var $wallet \Blocktrail\SDK\WalletInterface
* @var $backupMnemonic string
*/
try {
/** @var Wallet $wallet */
$wallet = $client->initWallet(["identifier" => "example-wallet", "passphrase" => "example-strong-password"]);
} catch (ObjectNotFound $e) {
list($wallet, $primaryMnemonic, $backupMnemonic, $blocktrailPublicKeys) = $client->createNewWallet(["identifier" => "example-wallet", "passphrase" => "example-strong-password", "key_index" => 9999]);
$wallet->doDiscovery();
}
// var_dump($wallet->deleteWebhook());
// var_dump($wallet->setupWebhook("http://www.example.com/wallet/webhook/example-wallet"));
$utxos = $wallet->utxos()['data'];
$utxo = $utxos[array_rand($utxos)];
$txBuilder = new TransactionBuilder();
var_dump($utxo['hash'], $utxo['idx'], $utxo['value'], $utxo['address'], $utxo['scriptpubkey_hex'], $utxo['path'], $utxo['redeem_script']);
$txBuilder->spendOutput($utxo['hash'], $utxo['idx']);
$txBuilder->addRecipient($wallet->getNewAddress(), $utxo['value'] / 2);
var_dump($wallet->sendTx($txBuilder));
