RNGethModule.java 文件源码

/**
 * Create and send transaction.
 *
 * @param passphrase Passphrase
 * @param nonce      Account nonce (use -1 to use last known nonce)
 * @param toAddress  Address destination
 * @param amount     Amount
 * @param gasLimit   Gas limit
 * @param gasPrice   Gas price
 * @param data
 * @param promise    Promise
 * @return Return String transaction
 */
@ReactMethod
public void createAndSendTransaction(String passphrase, double nonce, String toAddress,
                                     double amount, double gasLimit, double gasPrice,
                                     String data, Promise promise) {
    try {
        Account acc = GethHolder.getAccount();
        Address fromAddress = acc.getAddress();
        BigInt chain = new BigInt(GethHolder.getNodeConfig().getEthereumNetworkID());
        Context ctx = new Context();

        if (nonce == -1) {
          nonce = GethHolder.getNode().getEthereumClient().getPendingNonceAt(ctx, fromAddress);
        }

        Transaction tx = new Transaction(
                (long) nonce,
                new Address(toAddress),
                new BigInt((long) amount),
                new BigInt((long) gasLimit),
                new BigInt((long) gasPrice),
                data.getBytes("UTF8"));

        // Sign a transaction with a single authorization
        Transaction signed = GethHolder.getKeyStore().signTxPassphrase(acc, passphrase, tx, chain);
        // Send it out to the network.
        GethHolder.getNode().getEthereumClient().sendTransaction(ctx, signed);
        promise.resolve(tx.toString());
    } catch (Exception e) {
        promise.reject(NEW_TRANSACTION_ERROR, e);
    }
}