write is not a function from useContractWrite

Question

I am getting this error in runtime when using usePrepareContractWrite my code is as follows from the wagmi documentation:

const { config } = usePrepareContractWrite({
        address: "0x07a06AD39f......................"
        abi: [{ "inputs": [
                            {
                                "internalType": "address",
                                "name": "operator",
                                "type": "address"
                            },
                            {
                                "internalType": "bool",
                                "name": "approved",
                                "type": "bool"
                            }
                        ],
                    "name": "setApprovalForAll",
                    "outputs": [],
                    "stateMutability": "nonpayable",
                    "type": "function"
                
            }],
        functionName: 'setApprovalForAll',
    });
    
    const { data, write } = useContractWrite(config)
    
    const { isLoading, isSuccess }= useWaitForTransaction({
        confirmations: 1,
        hash: data?.hash,
        onSuccess() {
            console.log("transaction success");
        }
    });
    
    const getPermission = async () => {
    ->    write({
                   args: ["0xaD1beE8B47464…………………………..", true],
                    from: address,
                });
    }    

Answer 1

Make sure that the usePrepareContractWrite hook has finished executing before calling the useContractWrite hook. You can do this by checking the isLoading property of the usePrepareContractWrite hook.

Your end-user is connected to a wallet? It should be. You can do this by checking the isConnected property of the wagmi context.

Here is an example of how to check the isLoading property of the usePrepareContractWrite hook before calling the useContractWrite hook:

const { config, isLoading } = usePrepareContractWrite({
  address: "0x07a06AD39f......................",
  abi: [{
    "inputs": [
      {
        "internalType": "address",
        "name": "operator",
        "type": "address"
      },
      {
        "internalType": "bool",
        "name": "approved",
        "type": "bool"
      }
    ],
    "name": "setApprovalForAll",
    "outputs": [],
    "stateMutability": "nonpayable",
    "type": "function"
  }],
  functionName: 'setApprovalForAll',
});

if (!isLoading) {
  const { data, write } = useContractWrite(config);

  const { isLoading, isSuccess } = useWaitForTransaction({
    confirmations: 1,
    hash: data?.hash,
    onSuccess() {
      console.log("transaction success");
    }
  });

  const getPermission = async () => {
    write({
      args: ["0xaD1beE8B47464…………………………..", true],
      from: address,
    });
  }
}