org.web3j.protocol.core.Request.sendAsync()方法的使用及代码示例

x33g5p2x  于2022-01-29 转载在 其他  
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本文整理了Java中org.web3j.protocol.core.Request.sendAsync方法的一些代码示例，展示了Request.sendAsync的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Request.sendAsync方法的具体详情如下：
包路径：org.web3j.protocol.core.Request
类名称：Request
方法名：sendAsync

Request.sendAsync介绍

暂无

代码示例

代码示例来源：origin: web3j/web3j

  1. private Optional<TransactionReceipt> sendTransactionReceiptRequest(
  2.     String transactionHash) throws Exception {
  3.   EthGetTransactionReceipt transactionReceipt =
  4.       web3j.ethGetTransactionReceipt(transactionHash).sendAsync().get();
  5.   return transactionReceipt.getTransactionReceipt();
  6. }

代码示例来源：origin: web3j/web3j

  1. BigInteger getNonce(String address) throws Exception {
  2.   EthGetTransactionCount ethGetTransactionCount = web3j.ethGetTransactionCount(
  3.       address, DefaultBlockParameterName.LATEST).sendAsync().get();
  4.   return ethGetTransactionCount.getTransactionCount();
  5. }

代码示例来源：origin: web3j/web3j

  1. BigInteger getNonce(String address) throws Exception {
  2.     EthGetTransactionCount ethGetTransactionCount = web3j.ethGetTransactionCount(
  3.         address, DefaultBlockParameterName.LATEST).sendAsync().get();
  5.     return ethGetTransactionCount.getTransactionCount();
  6.   }
  7. }

代码示例来源：origin: web3j/web3j

  1. private BigInteger estimateGas(String encodedFunction) throws Exception {
  2.   EthEstimateGas ethEstimateGas = web3j.ethEstimateGas(
  3.       Transaction.createEthCallTransaction(ALICE.getAddress(), null, encodedFunction))
  4.       .sendAsync().get();
  5.   // this was coming back as 50,000,000 which is > the block gas limit of 4,712,388
  6.   // see eth.getBlock("latest")
  7.   return ethEstimateGas.getAmountUsed().divide(BigInteger.valueOf(100));
  8. }

代码示例来源：origin: web3j/web3j

  1. boolean unlockAccount() throws Exception {
  2.   PersonalUnlockAccount personalUnlockAccount =
  3.       web3j.personalUnlockAccount(
  4.           ALICE.getAddress(), WALLET_PASSWORD, ACCOUNT_UNLOCK_DURATION)
  5.           .sendAsync().get();
  6.   return personalUnlockAccount.accountUnlocked();
  7. }

代码示例来源：origin: web3j/web3j

  1. Web3ClientVersion web3ClientVersion = web3j.web3ClientVersion().sendAsync().get();
  2. if (web3ClientVersion.hasError()) {
  3.   exitError("Unable to process response from client: "

代码示例来源：origin: web3j/web3j

  1. @Test(expected = RuntimeException.class)
  2. @SuppressWarnings("unchecked")
  3. public void testInvalidTransactionResponse() throws Throwable {
  4.   prepareNonceRequest();
  5.   EthSendTransaction ethSendTransaction = new EthSendTransaction();
  6.   ethSendTransaction.setError(new Response.Error(1, "Invalid transaction"));
  7.   Request<?, EthSendTransaction> rawTransactionRequest = mock(Request.class);
  8.   when(rawTransactionRequest.sendAsync()).thenReturn(Async.run(() -> ethSendTransaction));
  9.   when(web3j.ethSendRawTransaction(any(String.class)))
  10.       .thenReturn((Request) rawTransactionRequest);
  11.   testErrorScenario();
  12. }

代码示例来源：origin: web3j/web3j

  1. @Test(expected = RuntimeException.class)
  2. @SuppressWarnings("unchecked")
  3. public void testInvalidTransactionReceipt() throws Throwable {
  4.   prepareNonceRequest();
  5.   prepareTransactionRequest();
  6.   EthGetTransactionReceipt ethGetTransactionReceipt = new EthGetTransactionReceipt();
  7.   ethGetTransactionReceipt.setError(new Response.Error(1, "Invalid transaction receipt"));
  8.   Request<?, EthGetTransactionReceipt> getTransactionReceiptRequest = mock(Request.class);
  9.   when(getTransactionReceiptRequest.sendAsync())
  10.       .thenReturn(Async.run(() -> ethGetTransactionReceipt));
  11.   when(web3j.ethGetTransactionReceipt(TRANSACTION_HASH))
  12.       .thenReturn((Request) getTransactionReceiptRequest);
  13.   testErrorScenario();
  14. }

代码示例来源：origin: web3j/web3j

  1. private String callSmartContractFunction(
  2.     Function function, String contractAddress) throws Exception {
  3.   String encodedFunction = FunctionEncoder.encode(function);
  4.   org.web3j.protocol.core.methods.response.EthCall response = web3j.ethCall(
  5.       Transaction.createEthCallTransaction(
  6.           ALICE.getAddress(), contractAddress, encodedFunction),
  7.       DefaultBlockParameterName.LATEST)
  8.       .sendAsync().get();
  9.   return response.getValue();
  10. }

代码示例来源：origin: web3j/web3j

  1. private String callSmartContractFunction(
  2.     Function function, String contractAddress) throws Exception {
  3.   String encodedFunction = FunctionEncoder.encode(function);
  4.   org.web3j.protocol.core.methods.response.EthCall response = web3j.ethCall(
  5.       Transaction.createEthCallTransaction(
  6.           ALICE.getAddress(), contractAddress, encodedFunction),
  7.       DefaultBlockParameterName.LATEST)
  8.       .sendAsync().get();
  9.   return response.getValue();
  10. }

代码示例来源：origin: web3j/web3j

  1. private String callSmartContractFunction(
  2.       Function function, String contractAddress) throws Exception {
  4.     String encodedFunction = FunctionEncoder.encode(function);
  6.     org.web3j.protocol.core.methods.response.EthCall response = web3j.ethCall(
  7.         Transaction.createEthCallTransaction(
  8.             ALICE.getAddress(), contractAddress, encodedFunction),
  9.         DefaultBlockParameterName.LATEST)
  10.         .sendAsync().get();
  12.     return response.getValue();
  13.   }
  14. }

代码示例来源：origin: web3j/web3j

  1. private String sendTransaction() throws Exception {
  2.   BigInteger nonce = getNonce(ALICE.getAddress());
  3.   Transaction transaction = Transaction.createContractTransaction(
  4.       ALICE.getAddress(),
  5.       nonce,
  6.       GAS_PRICE,
  7.       GAS_LIMIT,
  8.       BigInteger.ZERO,
  9.       getFibonacciSolidityBinary());
  10.   org.web3j.protocol.core.methods.response.EthSendTransaction
  11.       transactionResponse = web3j.ethSendTransaction(transaction)
  12.       .sendAsync().get();
  13.   return transactionResponse.getTransactionHash();
  14. }

代码示例来源：origin: web3j/web3j

  1. private String sendTransaction(
  2.     Credentials credentials, String contractAddress, BigInteger gas,
  3.     String encodedFunction) throws Exception {
  4.   BigInteger nonce = getNonce(credentials.getAddress());
  5.   Transaction transaction = Transaction.createFunctionCallTransaction(
  6.       credentials.getAddress(), nonce, Transaction.DEFAULT_GAS, gas, contractAddress,
  7.       encodedFunction);
  8.   org.web3j.protocol.core.methods.response.EthSendTransaction transactionResponse =
  9.       web3j.ethSendTransaction(transaction).sendAsync().get();
  10.   assertFalse(transactionResponse.hasError());
  11.   return transactionResponse.getTransactionHash();
  12. }

代码示例来源：origin: web3j/web3j

  1. private String sendCreateContractTransaction() throws Exception {
  2.   BigInteger nonce = getNonce(ALICE.getAddress());
  3.   String encodedConstructor =
  4.       FunctionEncoder.encodeConstructor(Collections.singletonList(new Utf8String(VALUE)));
  5.   Transaction transaction = Transaction.createContractTransaction(
  6.       ALICE.getAddress(),
  7.       nonce,
  8.       GAS_PRICE,
  9.       GAS_LIMIT,
  10.       BigInteger.ZERO,
  11.       getGreeterSolidityBinary() + encodedConstructor);
  12.   org.web3j.protocol.core.methods.response.EthSendTransaction
  13.       transactionResponse = web3j.ethSendTransaction(transaction)
  14.       .sendAsync().get();
  15.   return transactionResponse.getTransactionHash();
  16. }

代码示例来源：origin: web3j/web3j

  1. @Test
  2. public void testTransferEther() throws Exception {
  3.   unlockAccount();
  4.   BigInteger nonce = getNonce(ALICE.getAddress());
  5.   BigInteger value = Convert.toWei("0.5", Convert.Unit.ETHER).toBigInteger();
  6.   Transaction transaction = Transaction.createEtherTransaction(
  7.       ALICE.getAddress(), nonce, GAS_PRICE, GAS_LIMIT, BOB.getAddress(), value);
  8.   EthSendTransaction ethSendTransaction =
  9.       web3j.ethSendTransaction(transaction).sendAsync().get();
  10.   String transactionHash = ethSendTransaction.getTransactionHash();
  11.   assertFalse(transactionHash.isEmpty());
  12.   TransactionReceipt transactionReceipt =
  13.       waitForTransactionReceipt(transactionHash);
  14.   assertThat(transactionReceipt.getTransactionHash(), is(transactionHash));
  15. }

代码示例来源：origin: web3j/web3j

  1. @Test
  2. public void testTransferEther() throws Exception {
  3.   BigInteger nonce = getNonce(ALICE.getAddress());
  4.   RawTransaction rawTransaction = createEtherTransaction(
  5.       nonce, BOB.getAddress());
  6.   byte[] signedMessage = TransactionEncoder.signMessage(rawTransaction, ALICE);
  7.   String hexValue = Numeric.toHexString(signedMessage);
  8.   EthSendTransaction ethSendTransaction =
  9.       web3j.ethSendRawTransaction(hexValue).sendAsync().get();
  10.   String transactionHash = ethSendTransaction.getTransactionHash();
  11.   assertFalse(transactionHash.isEmpty());
  12.   TransactionReceipt transactionReceipt =
  13.       waitForTransactionReceipt(transactionHash);
  14.   assertThat(transactionReceipt.getTransactionHash(), is(transactionHash));
  15. }

代码示例来源：origin: web3j/web3j

  1. @Test
  2. public void testDeploySmartContract() throws Exception {
  3.   BigInteger nonce = getNonce(ALICE.getAddress());
  4.   RawTransaction rawTransaction = createSmartContractTransaction(nonce);
  5.   byte[] signedMessage = TransactionEncoder.signMessage(rawTransaction, ALICE);
  6.   String hexValue = Numeric.toHexString(signedMessage);
  7.   EthSendTransaction ethSendTransaction =
  8.       web3j.ethSendRawTransaction(hexValue).sendAsync().get();
  9.   String transactionHash = ethSendTransaction.getTransactionHash();
  10.   assertFalse(transactionHash.isEmpty());
  11.   TransactionReceipt transactionReceipt =
  12.       waitForTransactionReceipt(transactionHash);
  13.   assertThat(transactionReceipt.getTransactionHash(), is(transactionHash));
  14.   assertFalse("Contract execution ran out of gas",
  15.       rawTransaction.getGasLimit().equals(transactionReceipt.getGasUsed()));
  16. }

代码示例来源：origin: web3j/web3j

  1. private String execute(
  2.     Credentials credentials, Function function, String contractAddress) throws Exception {
  3.   BigInteger nonce = getNonce(credentials.getAddress());
  4.   String encodedFunction = FunctionEncoder.encode(function);
  5.   RawTransaction rawTransaction = RawTransaction.createTransaction(
  6.       nonce,
  7.       GAS_PRICE,
  8.       GAS_LIMIT,
  9.       contractAddress,
  10.       encodedFunction);
  11.   byte[] signedMessage = TransactionEncoder.signMessage(rawTransaction, credentials);
  12.   String hexValue = Numeric.toHexString(signedMessage);
  13.   EthSendTransaction transactionResponse = web3j.ethSendRawTransaction(hexValue)
  14.       .sendAsync().get();
  15.   return transactionResponse.getTransactionHash();
  16. }

代码示例来源：origin: web3j/web3j

  1. @Test
  2. public void testSignTransaction() throws Exception {
  3.   boolean accountUnlocked = unlockAccount();
  4.   assertTrue(accountUnlocked);
  5.   RawTransaction rawTransaction = createTransaction();
  6.   byte[] encoded = TransactionEncoder.encode(rawTransaction);
  7.   byte[] hashed = Hash.sha3(encoded);
  8.   EthSign ethSign = web3j.ethSign(ALICE.getAddress(), Numeric.toHexString(hashed))
  9.       .sendAsync().get();
  10.   String signature = ethSign.getSignature();
  11.   assertNotNull(signature);
  12.   assertFalse(signature.isEmpty());
  13. }

代码示例来源：origin: web3j/web3j

  1. private String sendCreateContractTransaction(
  2.     Credentials credentials, BigInteger initialSupply) throws Exception {
  3.   BigInteger nonce = getNonce(credentials.getAddress());
  4.   String encodedConstructor =
  5.       FunctionEncoder.encodeConstructor(
  6.           Arrays.asList(
  7.               new Uint256(initialSupply),
  8.               new Utf8String("web3j tokens"),
  9.               new Uint8(BigInteger.TEN),
  10.               new Utf8String("w3j$")));
  11.   RawTransaction rawTransaction = RawTransaction.createContractTransaction(
  12.       nonce,
  13.       GAS_PRICE,
  14.       GAS_LIMIT,
  15.       BigInteger.ZERO,
  16.       getHumanStandardTokenBinary() + encodedConstructor);
  17.   byte[] signedMessage = TransactionEncoder.signMessage(rawTransaction, credentials);
  18.   String hexValue = Numeric.toHexString(signedMessage);
  19.   EthSendTransaction transactionResponse = web3j.ethSendRawTransaction(hexValue)
  20.       .sendAsync().get();
  21.   return transactionResponse.getTransactionHash();
  22. }

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