Legacy

sendTransaction (Legacy)

caver.klay.sendTransaction(transactionObject [, callback])

Sends a transaction to the network.

Note: Only the account having AccountKeyLegacy can send this transaction.

Parameters

The parameters of sendTransaction are a transaction object and a callback function.

Name	Type	Description
transactionObject	Object	The transaction object to send.
callback	Function	(optional) Optional callback, returns an error object as the first parameter and the result as the second.

A transaction object of type LEGACY has the following structure:

Name	Type	Description
from	String	Address of this transaction sender.
to	String	(optional) The destination address of the message, left undefined for a contract-creation transaction.
value	Number | String | BN | BigNumber	(optional) The value transferred for the transaction in peb, also the endowment if it's a contract-creation transaction.
gas	Number	The maximum amount of gas willing to pay for the transaction (unused gas is refunded).
gasPrice	Number	(optional) Gas price provided by the sender in peb. The gasPrice must be the same as the unitPrice set in the Klaytn node.
data	String	(optional) Either an ABI byte string containing the data of the function call on a contract, or in the case of a contract-creation transaction the initialization code.
nonce	Number	(optional) Integer of a nonce. If omitted, it will be set by caver-js via calling caver.klay.getTransactionCount.

Return Value

The callback will return the 32-byte transaction hash.

PromiEvent: A promise combined event emitter. Will be resolved when the transaction receipt is available. Additionally the following events are available:

• "transactionHash" returns String: Is fired right after the transaction is sent and a transaction hash is available.
• "receipt" returns Object: Is fired when the transaction receipt is available.
• "error" returns Error: Is fired if an error occurs during sending. On an out-of-gas error, the second parameter is the receipt.

Example

const account = caver.klay.accounts.wallet.add('0x{private key}')

var code = "0x603d80600c6000396000f3007c01000000000000000000000000000000000000000000000000000000006000350463c6888fa18114602d57005b6007600435028060005260206000f3";

// using the callback

caver.klay.sendTransaction({

from: account.address,

data: code // deploying a contracrt

}, function(error, hash){

...

});

// using the promise

caver.klay.sendTransaction({

from: account.address,

to: '0x11f4d0A3c12e86B4b5F39B213F7E19D048276DAe',

value: '1000000000000000'

})

.then(function(receipt){

...

});

// using the event emitter

caver.klay.sendTransaction({

from: account.address,

to: '0x11f4d0A3c12e86B4b5F39B213F7E19D048276DAe',

value: '1000000000000000'

})

.on('transactionHash', function(hash){

...

})

.on('receipt', function(receipt){

...

})

.on('error', console.error); // If an out-of-gas error, the second parameter is the receipt.