UNPKG

viem

Version:

TypeScript Interface for Ethereum

291 lines (258 loc) 14.9 kB
<!-- > [!IMPORTANT] --> <!-- > Viem is participating in Gitcoin Grants round 21. Consider <a href="https://explorer.gitcoin.co/#/round/42161/389/73">supporting the project</a>. Thank you. 🙏 --> <br/> <p align="center"> <a href="https://viem.sh"> <picture> <source media="(prefers-color-scheme: dark)" srcset="https://raw.githubusercontent.com/wevm/viem/main/.github/gh-logo-dark.svg"> <img alt="viem logo" src="https://raw.githubusercontent.com/wevm/viem/main/.github/gh-logo-light.svg" width="auto" height="60"> </picture> </a> </p> <p align="center"> TypeScript Interface for Ethereum <p> <p align="center"> <a href="https://www.npmjs.com/package/viem"> <picture> <source media="(prefers-color-scheme: dark)" srcset="https://img.shields.io/npm/v/viem?colorA=21262d&colorB=21262d&style=flat"> <img src="https://img.shields.io/npm/v/viem?colorA=f6f8fa&colorB=f6f8fa&style=flat" alt="Version"> </picture> </a> <a href="https://app.codecov.io/gh/wevm/viem"> <picture> <source media="(prefers-color-scheme: dark)" srcset="https://img.shields.io/codecov/c/github/wevm/viem?colorA=21262d&colorB=21262d&style=flat"> <img src="https://img.shields.io/codecov/c/github/wevm/viem?colorA=f6f8fa&colorB=f6f8fa&style=flat" alt="Code coverage"> </picture> </a> <a href="https://github.com/wevm/viem/blob/main/LICENSE"> <picture> <source media="(prefers-color-scheme: dark)" srcset="https://img.shields.io/npm/l/viem?colorA=21262d&colorB=21262d&style=flat"> <img src="https://img.shields.io/npm/l/viem?colorA=f6f8fa&colorB=f6f8fa&style=flat" alt="MIT License"> </picture> </a> <a href="https://www.npmjs.com/package/viem"> <picture> <source media="(prefers-color-scheme: dark)" srcset="https://img.shields.io/npm/dm/viem?colorA=21262d&colorB=21262d&style=flat"> <img src="https://img.shields.io/npm/dm/viem?colorA=f6f8fa&colorB=f6f8fa&style=flat" alt="Downloads per month"> </picture> </a> <a href="https://bestofjs.org/projects/viem"> <picture> <source media="(prefers-color-scheme: dark)" srcset="https://img.shields.io/endpoint?colorA=21262d&colorB=21262d&style=flat&url=https://bestofjs-serverless.now.sh/api/project-badge?fullName=wevm%2Fviem%26since=daily"> <img src="https://img.shields.io/endpoint?colorA=f6f8fa&colorB=f6f8fa&style=flat&url=https://bestofjs-serverless.now.sh/api/project-badge?fullName=wevm%2Fviem%26since=daily" alt="Best of JS"> </picture> </a> </p> <br> ## Features - Abstractions over the [JSON-RPC API](https://ethereum.org/en/developers/docs/apis/json-rpc/) to make your life easier - First-class APIs for interacting with [Smart Contracts](https://ethereum.org/en/glossary/#smart-contract) - Language closely aligned to official [Ethereum terminology](https://ethereum.org/en/glossary/) - Import your Browser Extension, WalletConnect or Private Key Wallet - Browser native [BigInt](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/BigInt), instead of large BigNumber libraries - Utilities for working with [ABIs](https://ethereum.org/en/glossary/#abi) (encoding/decoding/inspection) - TypeScript ready ([infer types](https://viem.sh/docs/typescript) from ABIs and EIP-712 Typed Data) - First-class support for [Anvil](https://book.getfoundry.sh/), [Hardhat](https://hardhat.org/) & [Ganache](https://trufflesuite.com/ganache/) - Test suite running against [forked](https://ethereum.org/en/glossary/#fork) Ethereum network ... and a lot more. ## Overview ```ts // 1. Import modules. import { createPublicClient, http } from 'viem'; import { mainnet } from 'viem/chains'; // 2. Set up your client with desired chain & transport. const client = createPublicClient({ chain: mainnet, transport: http(), }); // 3. Consume an action! const blockNumber = await client.getBlockNumber(); ``` ## Documentation [Head to the documentation](https://viem.sh/docs/getting-started) to read and learn more about viem. ## Community Check out the following places for more viem-related content: - Follow [@wevm_dev](https://twitter.com/wevm_dev), [@_jxom](https://twitter.com/_jxom), and [@awkweb](https://twitter.com/awkweb) on Twitter for project updates - Join the [discussions on GitHub](https://github.com/wevm/viem/discussions) - [Share your project/organization](https://github.com/wevm/viem/discussions/104) that uses viem ## Support - [GitHub Sponsors](https://github.com/sponsors/wevm?metadata_campaign=docs_support) - [Gitcoin Grant](https://wagmi.sh/gitcoin) - [wevm.eth](https://etherscan.io/name-lookup-search?id=wevm.eth) ## Sponsors <a href="https://paradigm.xyz"> <picture> <source media="(prefers-color-scheme: dark)" srcset="https://raw.githubusercontent.com/wevm/.github/main/content/sponsors/paradigm-dark.svg"> <img alt="paradigm logo" src="https://raw.githubusercontent.com/wevm/.github/main/content/sponsors/paradigm-light.svg" width="auto" height="70"> </picture> </a> <a href="https://ithaca.xyz"> <picture> <source media="(prefers-color-scheme: dark)" srcset="https://raw.githubusercontent.com/wevm/.github/main/content/sponsors/ithaca-dark.svg"> <img alt="ithaca logo" src="https://raw.githubusercontent.com/wevm/.github/main/content/sponsors/ithaca-light.svg" width="auto" height="70"> </picture> </a> <br> <a href="https://twitter.com/family"> <picture> <source media="(prefers-color-scheme: dark)" srcset="https://raw.githubusercontent.com/wevm/.github/main/content/sponsors/family-dark.svg"> <img alt="family logo" src="https://raw.githubusercontent.com/wevm/.github/main/content/sponsors/family-light.svg" width="auto" height="50"> </picture> </a> <a href="https://twitter.com/context"> <picture> <source media="(prefers-color-scheme: dark)" srcset="https://raw.githubusercontent.com/wevm/.github/main/content/sponsors/context-dark.svg"> <img alt="context logo" src="https://raw.githubusercontent.com/wevm/.github/main/content/sponsors/context-light.svg" width="auto" height="50"> </picture> </a> <a href="https://walletconnect.com"> <picture> <source media="(prefers-color-scheme: dark)" srcset="https://raw.githubusercontent.com/wevm/.github/main/content/sponsors/walletconnect-dark.svg"> <img alt="WalletConnect logo" src="https://raw.githubusercontent.com/wevm/.github/main/content/sponsors/walletconnect-light.svg" width="auto" height="50"> </picture> </a> <a href="https://twitter.com/prtyDAO"> <picture> <source media="(prefers-color-scheme: dark)" srcset="https://raw.githubusercontent.com/wevm/.github/main/content/sponsors/partydao-dark.svg"> <img alt="PartyDAO logo" src="https://raw.githubusercontent.com/wevm/.github/main/content/sponsors/partydao-light.svg" width="auto" height="50"> </picture> </a> <a href="https://dynamic.xyz"> <picture> <source media="(prefers-color-scheme: dark)" srcset="https://raw.githubusercontent.com/wevm/.github/main/content/sponsors/dynamic-dark.svg"> <img alt="Dynamic logo" src="https://raw.githubusercontent.com/wevm/.github/main/content/sponsors/dynamic-light.svg" width="auto" height="50"> </picture> </a> <a href="https://sushi.com"> <picture> <source media="(prefers-color-scheme: dark)" srcset="https://raw.githubusercontent.com/wevm/.github/main/content/sponsors/sushi-dark.svg"> <img alt="Sushi logo" src="https://raw.githubusercontent.com/wevm/.github/main/content/sponsors/sushi-light.svg" width="auto" height="50"> </picture> </a> <a href="https://stripe.com"> <picture> <source media="(prefers-color-scheme: dark)" srcset="https://raw.githubusercontent.com/wevm/.github/main/content/sponsors/stripe-dark.svg"> <img alt="Stripe logo" src="https://raw.githubusercontent.com/wevm/.github/main/content/sponsors/stripe-light.svg" width="auto" height="50"> </picture> </a> <a href="https://privy.io"> <picture> <source media="(prefers-color-scheme: dark)" srcset="https://raw.githubusercontent.com/wevm/.github/main/content/sponsors/privy-dark.svg"> <img alt="Privy logo" src="https://raw.githubusercontent.com/wevm/.github/main/content/sponsors/privy-light.svg" width="auto" height="50"> </picture> </a> <a href="https://pancakeswap.finance"> <picture> <source media="(prefers-color-scheme: dark)" srcset="https://raw.githubusercontent.com/wevm/.github/main/content/sponsors/pancake-dark.svg"> <img alt="pancake logo" src="https://raw.githubusercontent.com/wevm/.github/main/content/sponsors/pancake-light.svg" width="auto" height="50"> </picture> </a> <a href="https://celo.org"> <picture> <source media="(prefers-color-scheme: dark)" srcset="https://raw.githubusercontent.com/wevm/.github/main/content/sponsors/celo-dark.svg"> <img alt="celo logo" src="https://raw.githubusercontent.com/wevm/.github/main/content/sponsors/celo-light.svg" width="auto" height="50"> </picture> </a> <a href="https://rainbow.me"> <picture> <source media="(prefers-color-scheme: dark)" srcset="https://raw.githubusercontent.com/wevm/.github/main/content/sponsors/rainbow-dark.svg"> <img alt="rainbow logo" src="https://raw.githubusercontent.com/wevm/.github/main/content/sponsors/rainbow-light.svg" width="auto" height="50"> </picture> </a> <a href="https://pimlico.io"> <picture> <source media="(prefers-color-scheme: dark)" srcset="https://raw.githubusercontent.com/wevm/.github/main/content/sponsors/pimlico-dark.svg"> <img alt="pimlico logo" src="https://raw.githubusercontent.com/wevm/.github/main/content/sponsors/pimlico-light.svg" width="auto" height="50"> </picture> </a> <a href="https://zora.co"> <picture> <source media="(prefers-color-scheme: dark)" srcset="https://raw.githubusercontent.com/wevm/.github/main/content/sponsors/zora-dark.svg"> <img alt="zora logo" src="https://raw.githubusercontent.com/wevm/.github/main/content/sponsors/zora-light.svg" width="auto" height="50"> </picture> </a> <a href="https://lattice.xyz"> <picture> <source media="(prefers-color-scheme: dark)" srcset="https://raw.githubusercontent.com/wevm/.github/main/content/sponsors/lattice-dark.svg"> <img alt="lattice logo" src="https://raw.githubusercontent.com/wevm/.github/main/content/sponsors/lattice-light.svg" width="auto" height="50"> </picture> </a> <a href="https://twitter.com/supafinance"> <picture> <source media="(prefers-color-scheme: dark)" srcset="https://raw.githubusercontent.com/wevm/.github/main/content/sponsors/supa-dark.svg"> <img alt="supa logo" src="https://raw.githubusercontent.com/wevm/.github/main/content/sponsors/supa-light.svg" width="auto" height="50"> </picture> </a> <a href="https://zksync.io"> <picture> <source media="(prefers-color-scheme: dark)" srcset="https://raw.githubusercontent.com/wevm/.github/main/content/sponsors/zksync-dark.svg"> <img alt="ZKsync logo" src="https://raw.githubusercontent.com/wevm/.github/main/content/sponsors/zksync-light.svg" width="auto" height="50"> </picture> </a> <a href="https://syndicate.io"> <picture> <source media="(prefers-color-scheme: dark)" srcset="https://raw.githubusercontent.com/wevm/.github/main/content/sponsors/syndicate-dark.svg"> <img alt="syndicate logo" src="https://raw.githubusercontent.com/wevm/.github/main/content/sponsors/syndicate-light.svg" width="auto" height="50"> </picture> </a> <a href="https://reservoir.tools"> <picture> <source media="(prefers-color-scheme: dark)" srcset="https://raw.githubusercontent.com/wevm/.github/main/content/sponsors/reservoir-dark.svg"> <img alt="reservoir logo" src="https://raw.githubusercontent.com/wevm/.github/main/content/sponsors/reservoir-light.svg" width="auto" height="50"> </picture> </a> <a href="https://linea.build"> <picture> <source media="(prefers-color-scheme: dark)" srcset="https://raw.githubusercontent.com/wevm/.github/main/content/sponsors/linea-dark.svg"> <img alt="linea logo" src="https://raw.githubusercontent.com/wevm/.github/main/content/sponsors/linea-light.svg" width="auto" height="50"> </picture> </a> <a href="https://uniswap.org"> <picture> <source media="(prefers-color-scheme: dark)" srcset="https://raw.githubusercontent.com/wevm/.github/main/content/sponsors/uniswap-dark.svg"> <img alt="uniswap logo" src="https://raw.githubusercontent.com/wevm/.github/main/content/sponsors/uniswap-light.svg" width="auto" height="50"> </picture> </a> <a href="https://biconomy.io"> <picture> <source media="(prefers-color-scheme: dark)" srcset="https://raw.githubusercontent.com/wevm/.github/b0276d897be98a4c94ad1d1c72ce99a1020eeb58/content/sponsors/biconomy-dark.svg"> <img alt="biconomy logo" src="https://raw.githubusercontent.com/wevm/.github/main/content/sponsors/biconomy-light.svg" width="auto" height="50"> </picture> </a> <a href="https://thirdweb.com"> <picture> <source media="(prefers-color-scheme: dark)" srcset="https://raw.githubusercontent.com/wevm/.github/main/content/sponsors/thirdweb-dark.svg"> <img alt="thirdweb logo" src="https://raw.githubusercontent.com/wevm/.github/main/content/sponsors/thirdweb-light.svg" width="auto" height="50"> </picture> </a> <a href="https://polymarket.com"> <picture> <source media="(prefers-color-scheme: dark)" srcset="https://raw.githubusercontent.com/wevm/.github/main/content/sponsors/polymarket-dark.svg"> <img alt="polymarket logo" src="https://raw.githubusercontent.com/wevm/.github/main/content/sponsors/polymarket-light.svg" width="auto" height="50"> </picture> </a> <a href="https://routescan.io"> <picture> <source media="(prefers-color-scheme: dark)" srcset="https://raw.githubusercontent.com/wevm/.github/main/content/sponsors/routescan-dark.svg"> <img alt="routescan logo" src="https://raw.githubusercontent.com/wevm/.github/main/content/sponsors/routescan-light.svg" width="auto" height="50"> </picture> </a> <a href="https://sequence.xyz"> <picture> <source media="(prefers-color-scheme: dark)" srcset="https://raw.githubusercontent.com/wevm/.github/main/content/sponsors/sequence-dark.svg"> <img alt="sequence logo" src="https://raw.githubusercontent.com/wevm/.github/main/content/sponsors/sequence-light.svg" width="auto" height="50"> </picture> </a> ## Contributing If you're interested in contributing, please read the [contributing docs](/.github/CONTRIBUTING.md) **before submitting a pull request**. ## Authors - [@jxom](https://github.com/jxom) (jxom.eth, [Twitter](https://twitter.com/_jxom)) - [@tmm](https://github.com/tmm) (awkweb.eth, [Twitter](https://twitter.com/awkweb)) ## License [MIT](/LICENSE) License <br /> <br /> <a href="https://vercel.com/?utm_source=wevm&utm_campaign=oss"> <img src="https://www.datocms-assets.com/31049/1618983297-powered-by-vercel.svg" alt="Powered by Vercel" height="35"> </a>