web3-providers-http
Advanced tools
The web3-providers-http package is a part of the Web3.js library that allows you to interact with Ethereum nodes using HTTP. It provides a way to send JSON-RPC requests to an Ethereum node over HTTP, making it possible to perform various blockchain-related operations such as querying blockchain data, sending transactions, and more.
Connecting to an Ethereum Node
This feature allows you to connect to an Ethereum node using an HTTP provider. The code sample demonstrates how to create a new Web3 instance and connect it to a local Ethereum node running on port 8545.
const Web3 = require('web3');
const web3 = new Web3(new Web3.providers.HttpProvider('http://localhost:8545'));
console.log('Connected to Ethereum node:', web3.currentProvider.host);Sending JSON-RPC Requests
This feature allows you to send JSON-RPC requests to the Ethereum node. The code sample demonstrates how to get the latest block number from the connected Ethereum node.
const Web3 = require('web3');
const web3 = new Web3(new Web3.providers.HttpProvider('http://localhost:8545'));
web3.eth.getBlockNumber().then(console.log);Handling Errors
This feature allows you to handle errors that may occur when sending JSON-RPC requests. The code sample demonstrates how to catch and log errors when trying to get the latest block number.
const Web3 = require('web3');
const web3 = new Web3(new Web3.providers.HttpProvider('http://localhost:8545'));
web3.eth.getBlockNumber().then(console.log).catch(console.error);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-providers-http, such as connecting to Ethereum nodes, sending transactions, and querying blockchain data. Ethers.js is known for its simplicity and ease of use compared to Web3.js.
The web3 package is the main library of which web3-providers-http is a part. It provides a comprehensive set of tools for interacting with the Ethereum blockchain, including various providers (HTTP, WebSocket, etc.), utilities for handling accounts, contracts, and more. It is more feature-rich compared to web3-providers-http alone.
Ethjs is a lightweight and modular library for interacting with the Ethereum blockchain. It provides similar functionalities to web3-providers-http, such as sending JSON-RPC requests and handling blockchain data. Ethjs is designed to be minimalistic and modular, making it a good choice for projects that require a smaller footprint.
yarn add web3-providers-http
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
HTTP provider for Web3 4.x.x
The npm package web3-providers-http receives a total of 227,281 weekly downloads. As such, web3-providers-http popularity was classified as popular.
We found that web3-providers-http 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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