Lesson: 5 With Alchemy I can't recognise the retrieve() method, it throws error Bad-Data

[NodEm9]

Hello guys

I'm having this problem can't figure out why. Alchemy can not decode the retrieve() method hence the can;'t display initial favoriteNumber 0 and new stored number either. Here is the error message below:

Error: could not decode result data (value="0x", info={ "method": "retrieve", "signature": "retrieve()" }, code=BAD_DATA, version=6.0.2) code: 'BAD_DATA', value: '0x', info: { method: 'retrieve', signature: 'retrieve()' }

Below is the code:

async function main() {
    // 127.0.0.1:7545
    const provider = new ethers.JsonRpcProvider(process.env.RPC_URL);
    const wallet = new ethers.Wallet(process.env.PRIVATE_KEY, provider);
    // const encryptedJson = fs.readFileSync("./.encryptedKey.json", "utf8");
    // let wallet = ethers.Wallet.fromEncryptedJsonSync( 
    //     encryptedJson,
    //     process.env.PRIVATE_KEY_PASSWORD
    // );
    // wallet = await wallet.connect(provider);
    const abi = fs.readFileSync("./SimpleStorage_sol_SimpleStorage.abi",
     "utf8"
     );
    const binary = fs.readFileSync(
        "./SimpleStorage_sol_SimpleStorage.bin",
         "utf8"
    );
    const contractFactory = new ethers.ContractFactory(abi, binary, wallet);
    console.log("Started deployong your contract, please wait...")
    const contract = await contractFactory.deploy();
    await contract.deploymentTransaction;
    // console.log(`Contract Address: ${await contract.getAddress()}`)
    //Get number
    const currentFavoriteNumber = await contract.retrieve();
    console.log(`Current favorite number is, ${currentFavoriteNumber.toString()}`);
    const transactionResponse = await contract.store("7",);
    await transactionResponse;
    const updatedFavoriteNumber = await contract.retrieve();
    console.log(`Updated favorite number is: ${updatedFavoriteNumber}`)
}

[alymurtazamemon]

@NodEm9 try this;

 const currentFavoriteNumber = (await contract.retrieve()).toString()

[paulcoffee85]

I have issue at some spot. It returns '7' with Ganache network, but with Alchemy/Metamask it' doesn't retrieve updated FavoriteNumber, just returns zero '0'

[alymurtazamemon]

@paulcoffee85 You must not be waiting for the state to update properly before reading the updated data.

[paulcoffee85]

Yep, i have const transactionReceipt = transactionResponse.wait(6) also tried wait(10)

[paulcoffee85]

Now it finally work, I had to change const transactionReceipt = transactionResponse.wait(10) to just await transactionResponse.wait(10)
That's crazy, it took a little while but finally got the right output. Also didn't need wait(10) , worked with wait(1)