Scaffold AlchemyInteracting with your Smart Contracts

useScaffoldReadContract

Use this hook to read public variables and get data from read-only functions of your smart contract.

Use this hook to read public variables and get data from read-only functions of your smart contract.

typescript
1const { data: totalCounter } = useScaffoldReadContract({
2  contractName: "YourContract",
3  functionName: "userGreetingCounter",
4  args: ["0xd8da6bf26964af9d7eed9e03e53415d37aa96045"],
5});

This example retrieves the data returned by the userGreetingCounter function of the YourContract smart contract.

Configuration

ParameterTypeDescription
contractNamestringName of the contract to read from.
functionNamestringName of the function to call.
args (optional)unknown[]Array of arguments to pass to the function (if accepts any). Types are inferred from contract’s function parameters
watch (optional)booleanWatches and refreshes data on new blocks. (default : true)
chainId (optional)stringId of the chain the contract lives on. Defaults to targetNetworks[0].id

You can also pass other arguments accepted by useReadContract wagmi hook.

Return Values

  • The retrieved data is stored in the data property of the returned object.
  • You can refetch the data by calling the refetch function.
  • The extended object includes properties inherited from wagmi useReadContract. You can check the useReadContract return values documentation to check the types.