Account Abstraction Snap for MetaMask

Generate and Sign Transactions using the Smart Contract Wallet generated by MetaMask Note : Works only with MetaMask Flask Build 10.25

Steps to use the snap in your dapp

Install package

  npm i aa-snap37

Setup the Snap origin

    const defaultSnapOrigin = `npm:aa-snap37`;

Connect the Snap

  const connectSnap = async (
    snapId: string = defaultSnapOrigin,
    params: Record<"version" | string, unknown> = {}
  ) => {
    await window.ethereum?.request({
      method: "wallet_requestSnaps",
      params: {
        [snapId]: params,
      },
    });
  };

Call the Snap method

  const callSnap = async()=>{
    await window.ethereum?.request({
      method:"wallet_invokeSnap",
      params:{
        snapId : defaultSnapOrigin,
        request:{
          method:"init_aa",
        },
      },
    });
  }

Run Locally

• Clone the project

  git clone https://github.com/Arch0125/snap4337

• Install dependencies

  yarn install

• Manually add polyfills

Add the following to /node_modules/@account-abstraction/sdk/dist/src/index.js

 1 | "use strict";
 2 | +++ globalThis.Buffer = require('buffer/').Buffer;
 3 | var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2)

• Start the server

yarn start