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This article introduces the relevant knowledge of "how to use web3.eth.sendTransaction". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

Send a transaction to the network. If the deal was created by a contract, use web3.eth.getTransactionReceipt () to get the address of the contract after the transaction is completed.

Call:

Web3.eth.sendTransaction (transactionObject [, callback])

Parameters:

TransactionObject: Object-the transaction object to be sent.

From: String-the address of the specified sender. If not specified, web3.eth.defaultAccount is used.

To: String-(optional) the destination address of the transaction message. If it is a contract creation, it is not filled in.

Value: Number | String | BigNumber-(optional) the amount of currency carried by the transaction, in wei. If the contract creates a transaction, it is the initial fund.

Gas: Number | String | BigNumber-(optional) default is automatic, gas can be used for transactions, and unused gas will be returned.

GasPrice: Number | String | BigNumber-(optional) the gas price of the transaction is determined automatically by default. The default is the average network gas price.

Data: String-(optional) or a byte string containing the relevant data, or, in the case of contract creation, the code to be used for initialization.

Nonce: Number-(optional) integer, using this value, allows you to override your own transactions in the same nonce, which are in pending 11.

Function-callback function to support asynchronous execution of 7.

Return value:

String-32 byte transaction hash string. Expressed in hexadecimal.

Example:

/ / compiled solidity source code using https://chriseth.github.io/cpp-ethereum/var code = "603d80600c6000396000f3007c01000000000000000000000000000000000000000000000000000000006000350463c6888fa18114602d57005b6007600435028060005260206000f3"; web3.eth.sendTransaction ({data: code}, function (err, address) {if (! err) console.log (address); / / "0x7f9fade1c0d57a7af66ab4ead7c2eb7b11a91385"}); that's all for "how to use web3.eth.sendTransaction". Thank you for reading. If you want to know more about the industry, you can follow the website, the editor will output more high-quality practical articles for you!

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