Rspack

Rspack is a Rust-based bundler with a webpack-compatible plugin API. @tevm/rspack-plugin is experimental — it works, but it sees less use than the Vite and webpack adapters, so report anything surprising.

npm install --save-dev @tevm/rspack-plugin @tevm/ts-plugin
npm install @tevm/contract

Configuration

Unlike the webpack adapter, this one is a factory — no new:

rspack.config.mjs

import { rspackPluginTevm } from '@tevm/rspack-plugin'
 
export default {
	entry: './src/index.ts',
	output: {
		filename: 'bundle.js',
	},
	plugins: [rspackPluginTevm({ solc: '0.8.30' })],
}

The only option is solc. See Configuration for everything else.

Complete example

src/contracts/Adder.s.sol

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;
 
contract Adder {
    function add(uint256 a, uint256 b) public pure returns (uint256) {
        return a + b;
    }
}

src/index.ts

import { createMemoryClient } from 'tevm'
import { Adder } from './contracts/Adder.s.sol'
 
const client = createMemoryClient()
const adder = await client.deployContract(Adder)
await client.mine({ blocks: 1 })
 
console.log(await client.readContract(adder.read.add(2n, 3n)))
// 5n

Notes

Rspack reuses webpack's plugin lifecycle, so behaviour matches the webpack guide — including the fact that the Tevm plugin claims .sol files before any module rule can.
Because Rspack's own type checking is opt-in, run tsc --noEmit separately to benefit from the TypeScript plugin.

Suggest changes to this page