Deploy EIP 1820

Ethereum EIP 1820 is a standard for pseudo-introspection of smart contracts on Ethereum.

This library ensures that the EIP 1820 registry smart contract exists on any given chain. Particularly useful for test environments.

Uses ethers.js v5.

If you're using ethers.js v4 then try the 0.2 version.

Setup

Install deploy-eip-1820 via yarn:

$ yarn add deploy-eip-1820

or npm:

$ npm i deploy-eip-1820

Usage

To ensure that the EIP 1820 Registry contract exists on the network you are using, use the setup1820 function:

const { deploy1820 } = require('deploy-eip-1820')

async function deploy() {
    const wallet = ethers.Wallet.fromMnemonic("...your mnemonic...")
    // The wallet must have at least 0.08 Ether
    const registryContract = await deploy1820(wallet)

    // Now we have an Ethers Contract instance for the ERC1820 Registry contract
    let implementer = await registryContract.getInterfaceImplementer('0x1234...', '0xINTERFACE_HASH')
}