📡 Interacting with External Contracts

If you need to interact with external contracts (i.e. not deployed with your SE-2 instance, e.g DAI contract) you can add external contract data to your packages/nextjs/contracts/externalContracts.ts file, which would let you use Scaffold-ETH 2 custom hooks.

To achieve this, include the contract name, its address, and abi in externalContracts.ts for each chain ID. Ensure to update the targetNetworks in scaffold.config.ts to your preferred chains to enable hooks typescript autocompletion.

This is the structure of externalContracts object:

const externalContracts = {
  1: {
    DAI: {
      address: "0x...",
      abi: [...],
    },
    WETH: {
      address: "0x...",
      abi: [...],
    },
  },
  5: {
    DAI: {
      address: "0x...",
      abi: [...],
    },
    WETH: {
      address: "0x...",
      abi: [...],
    },
  },
} as const;