web3j에서 포팅하기

caver-java는 이식성을 위해 web3j와 최대한 유사하게 만들었습니다. 아래 코드 스니펫은 web3j로 작성된 애플리케이션을 caver-java로 포팅하는 방법을 보여줍니다.

/* start a client */

Web3j web3 = Web3j.build(new HttpService(<endpoint>)); // Web3j

Caver caver = Caver.build(new HttpService(<endpoint>)); // caver-java

/* get nonce */

BigInteger nonce = web3j.ethGetTransactionCount(<address>, <blockParam>).send().getTransactionCount(); // Web3j

Quantity nonce = caver.klay().getTransactionCount(<address>, <blockParam>).send().getValue(); // caver-java

/* convert unit */

Convert.toWei("1.0", Convert.Unit.ETHER).toBigInteger(); // Web3j

Convert.toPeb("1.0", Convert.Unit.KLAY).toBigInteger(); // caver-java

/* generate wallet file */

WalletUtils.generateNewWalletFile(<password>, <filepath>); // Web3j

KlayWalletUtils.generateNewWalletFile(<address>, <password>, <filepath>); // caver-java

/* load credentials */

Credentials credentials = WalletUtils.loadCrendetials(<password>, <filepath>"); // Web3j

KlayCredentials credentials = KlayWalletUtils.loadCredentials(<password>, <filepath>); // caver-java

/* Value Transfer */

TransactionReceipt transactionReceipt = Transfer.sendFunds(...),send(); // Web3j

KlayTransactionReceipt.TransactionReceipt transactionReceipt = ValueTransfer.sendFunds().send(); // caver-java