The web3-eth package is a sub-package of the web3.js library that provides functionalities to interact with the Ethereum blockchain. It allows developers to interact with Ethereum nodes, manage accounts, send transactions, and interact with smart contracts.
Connecting to an Ethereum Node
This feature allows you to connect to an Ethereum node using an HTTP provider. In this example, we are connecting to the Ethereum mainnet using Infura.
const Web3 = require('web3');
const web3 = new Web3('https://mainnet.infura.io/v3/YOUR_INFURA_PROJECT_ID');Getting the Balance of an Account
This feature allows you to get the balance of a specific Ethereum account. The balance is returned in Wei, the smallest unit of Ether.
web3.eth.getBalance('0x742d35Cc6634C0532925a3b844Bc454e4438f44e').then(console.log);Sending a Transaction
This feature allows you to send a transaction from one Ethereum account to another. You need to specify the sender's address, recipient's address, amount of Ether to send, and gas limit.
const tx = {
from: '0xYourAddress',
to: '0xRecipientAddress',
value: web3.utils.toWei('0.1', 'ether'),
gas: 2000000
};
web3.eth.sendTransaction(tx).then(console.log);Interacting with Smart Contracts
This feature allows you to interact with smart contracts deployed on the Ethereum blockchain. You need the contract's ABI and address to create a contract instance and call its methods.
const contractABI = [/* ABI array */];
const contractAddress = '0xContractAddress';
const contract = new web3.eth.Contract(contractABI, contractAddress);
contract.methods.myMethod().call().then(console.log);The ethers.js library is a complete and compact library for interacting with the Ethereum blockchain and its ecosystem. It provides similar functionalities to web3-eth, such as connecting to Ethereum nodes, managing accounts, sending transactions, and interacting with smart contracts. Ethers.js is known for its smaller size and better documentation.
Ethjs is a highly modular and lightweight library for interacting with the Ethereum blockchain. It provides similar functionalities to web3-eth, including sending transactions, managing accounts, and interacting with smart contracts. Ethjs is designed to be simple and easy to use, with a focus on modularity.
Truffle-contract is a library for managing and interacting with Ethereum smart contracts. It provides a higher-level abstraction for working with contracts compared to web3-eth. Truffle-contract is part of the Truffle Suite, which includes tools for developing, testing, and deploying smart contracts.
yarn add web3-eth
build: Runs yarn clean and yarn compileclean: Uses rimraf to remove lib/ and buildcache/compile: Uses tsc to build package and depedenent packageslint: Uses prettier and eslint to lint packagelint:check: Uses prettier and eslint to check if package has been lintedtest: Uses jest to run all teststest:integration: Uses jest to run tests under /test/integrationtest:unit: Uses jest to run tests under /test/unit[4.0.0-alpha.0]
Note: Yarn is resolving to some old deprecated package versions for 4.0.0-alpha.0 instead of latest alpha versions. A patch bump is posted so yarn users should use 4.0.1-alpha.0 for testing.
web3-errors new package is created, it has Web3 Error codes and classesweb3-types new package is created, it provides the common data structures and interfaces for web3 modulesweb3-validator new package is created, it has JSON-Schema compatible validator functionality for Web3errors are moved to web3-errors package and formatters are moved in web3-core packageweb3-core-method functionality is moved to web3-eth packageweb3-core packageweb3-core packageweb3-core packageextend is deprecatedoutputBigNumberFormatter in web3-core-helper renamed to outputBigIntFormatter under web3-corethis.defaultBlock context from inputDefaultBlockNumberFormatter in web3-core-helper and converted to additional parameterthis.defaultBlock context from inputTransactionFormatter in web3-core-helper and converted to additional parametersoliditySha3 soliditySha3Raw encodePacked now includes type validation and requires type specification, instead of guessing the value typesoliditySha3, soliditySha3Raw and encodePacked did not support BN; But, now supports BigIntflattenTypes and jsonInterfaceMethodToString moved to the web3-eth-abi packageisAddress now includes an optional parameter checkChecksum type booleanisBoolean now accept 1, and 0 as valid values to test. Ref: web3-validatorcreate function does not take in the optional parameter entropyWallet.create function doesn't accept entropy paramisBoolean now accept 1, and 0 as valid values to test.signTransaction will not fill any default values, and it will only sign and return result. For filling default values, use web3-eth packagerecover function's last param is boolean hashed, it is used to indicate if data provided is already hashed or not. By default, this function will assume data is not hashed.Wallet no longer supports address/number indexing. Have to use wallet.get instead.Wallet.create function doesn't accept entropy paramcontract.method.send() will resolve to transaction receipt instead of transactionHash. User can use receipt.transactionHash instead.isDirect, isValid, isIndirect are now also included as static methods.setMultihash is not supported in web3-eth-ens 4.x as it's deprecated in ENS public resolver (https://github.com/ensdomains/resolvers/blob/master/contracts/PublicResolver.sol)setContent is not supported in web3-eth-ens 4.x as it's deprecated in ENS public resolver (https://github.com/ensdomains/resolvers/blob/master/contracts/PublicResolver.sol)getContent is not supported in web3-eth-ens 4.x as it's deprecated in ENS public resolver.getMultihash is not supported in web3-eth-ens 4.x as it's deprecated in ENS public resolver.internalType was renamed to baseType in all abi typesgivenProvider default value is undefineddefaultHardfork default value is 'london'defaultAccount default value is undefineddefaultNetworkId default value is undefinedtransactionSendTimeout, throw an Error.clearSubscriptions Instead of returning true , clearSubscriptions now returns array of subscription's idsgivenProvider default value is undefinedcurrentProvider default value is undefinedFAQs
Web3 module to interact with the Ethereum blockchain and smart contracts.
The npm package web3-eth receives a total of 215,904 weekly downloads. As such, web3-eth popularity was classified as popular.
We found that web3-eth demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 4 open source maintainers collaborating on the project.
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