useReadContract

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

const { data: totalCounter } = useReadContract({
  abi: [YourContractABI],
  address: "0xabca6bf26964af9f7eed9e03e53415d37aa90123",
  functionName: "userGreetingCounter",
  args: ["0xd8da6bf26964af9d7eed9e03e53415d37aa96045"],
});

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

Configuration

Parameter	Type	Required	Description
abi	object[]	No	ABI of the contract to read from.
address	string	No	Address of contract to read from.
functionName	string	No	Name of the function to call.
args	unknown[]	No	Array of arguments to pass to the function (if accepts any). Types are inferred from contract's function parameters
enabled	boolean	No	Should fetch data onMount. (default: true)
watch	boolean	No	If set to true, the data will be refetched on each block mine (default: false).
onError	function	No	Function to handle errors.

Return Values

• The retrieved data is stored in the data property.
• The loading state is stored in the isLoading property.
• The error property stores any errors during reads.
• You can refetch the data by calling the refetch function.
• You can also use readContract function to read data. by filling the object parameter with - abi, address, functionName, args

Below is the configuration for readContract function:

Configuration

Parameter	Type	Required	Description
abi	object[]	Yes	ABI of the contract to read from.
address	string	Yes	Address of contract to read from.
functionName	string	Yes	Name of the function to call.
args	unknown[]	No	Array of arguments to pass to the function (if accepts any). Types are inferred from contract's function parameters