💵
Meta-Multi-Sig Wallet

An off-chain signature-based multi-sig wallet
Branch Info
Author: Amogh Jahagirdar
Source code: https://github.com/scaffold-eth/scaffold-eth-examples/tree/meta-multi-sig
Intended audience: Intermediate
Topics: Scaffold-eth basics, multi-sig wallets
🏃‍♀️ Quick Start
required: Node plus Yarn and Git​
git clone https://github.com/scaffold-eth/scaffold-eth-examples.git meta-multi-sig
​
cd meta-multi-sig
​
git checkout meta-multi-sig
yarn install
yarn start
in a second terminal window:
cd scaffold-eth
yarn chain
🔏 Edit your smart contract MetaMultiSigWallet.sol in packages/hardhat/contracts
📝 Edit your frontend App.jsx in packages/react-app/src
💼 Edit your deployment script deploy.js in packages/hardhat/scripts
📱 Open http://localhost:3000 to see the app
in a third terminal window:
yarn backend
🔧 Configure your deployment in packages/hardhat/scripts/deploy.js
Edit the chainid, your owner addresses, and the number of signatures required:
​​
​​
in a fourth terminal deploy with your frontend address as one of the owners:
yarn deploy
Use the faucet wallet to send your multi-sig contract some funds:
​​
​​
To add new owners, use the "Owners" tab:
​​
​​
This will take you to a populated transaction create page:
​​
​​
Create & sign the new transaction:
​​
​​
You will see the new transaction in the pool (this is all off-chain):
​​
​​
Click on the ellipsses button [...] to read the details of the transaction
​​
​​
Give your account some gas at the faucet and execute the transaction
The transction will appear as "executed" on the front page:
​​
​​
Create a transaction to send some funds to your frontend account:
​​
​​
This time we will need a second signature:
​​
​​
Sign the transacton with enough owners: ​
​​
(You'll notice you don't need ⛽️gas to sign transactions.)
Execute the transction to transfer the funds:
​​
​​
(You might need to trigger a new block by sending yourself some faucet funds or something. HartHat blocks only get mined when there is a transaction.)
💼 Edit your deployment script deploy.js in packages/hardhat/scripts
🔏 Edit your contracts form, MetaMultiSigWallet.sol in packages/hardhat/contracts
📝 Edit your frontend in packages/react-app/src/views
⚔️ Side Quests
🐟 Create custom signer roles for your Wallet
You may not want every signer to create new transfers, only allow them to sign existing transactions or a mega-admin role who will be able to veto any transaction.
😎 Integrate this MultiSig wallet into other branches like nifty-ink
Make a MultiSig wallet to store your precious doodle-NFTs!?
📡 Deploy the wallet!
🛰 Ready to deploy to a testnet?
Change the defaultNetwork in packages/hardhat/hardhat.config.js
​​
​​
🔐 Generate a deploy account with yarn generate
​​
​​
👛 View your deployer address using yarn account (You'll need to fund this account. Hint: use an instant wallet to fund your account via QR code)
​​
​​
👨‍🎤 Deploy your wallet:
yarn deploy
✏️ Edit your frontend App.jsx in packages/react-app/src to change the targetNetwork to wherever you deployed your contract:
​​
​​
You should see the correct network in the frontend:
​​
​​
Also change the poolServerUrl constant to your deployed backend (via yarn backend)
​​
​​
Alternatively you can use the pool server url in the above screenshot
🔶 Infura
You will need to get a key from infura.io and paste it into constants.js in packages/react-app/src:
​​
​​
🛳 Ship the app!
⚙️ build and upload your frontend and share the url with your friends...
# build it:
​
yarn build
​
# upload it:
​
yarn surge
​
OR
​
yarn s3
​
OR
​
yarn ipfs
​​
​​
👩‍❤️‍👨 Share your public url with friends, add signers and send some tasty ETH to a few lucky ones 😉!!