// 构造出合约调用交易
var contract = new web3.eth.Contract(contractJson, contractAddress);
var transfer = contract.methods.transfer("0x...", 490);
var encodedABI = transfer.encodeABI();
var tx = {
from: "0x...",
to: contractAddress,
gas: 2000000,
data: encodedABI
};
// 对交易签名
web3.eth.accounts.signTransaction(tx, privateKey).then(signed => {
var tran = web3.eth.sendSignedTransaction(signed.rawTransaction);
tran.on('confirmation', (confirmationNumber, receipt) => {
console.log('confirmation: ' + confirmationNumber);
});
tran.on('transactionHash', hash => {
console.log('hash');
console.log(hash);
});
tran.on('receipt', receipt => {
console.log('reciept');
console.log(receipt);
});
tran.on('error', console.error);
});
