Lesson:5 Unable to access ABI functions.

[Hruthik5124]

I'm in v6.

const contractFactory = new ethers.ContractFactory(abi,binary,wallet);
console.log("Deploying please wait....");
const contract = await contractFactory.deploy();
await contract.deploymentTransaction()?.wait(1);
const FavNumber = await contract.retrieve();
console.log(FavNumber);

In v6 contract.retrieve(); method is not working. Please anyone helpme.

[ismail243]

You have a syntax error in this line await contract.deploymentTransaction()?.wait(1); try removing the question mark. Maybe that would work. Or maybe in the smart contract you named the retrieve() method something else. Use the name you assigned to the function that returns the favorite number.

[Hruthik5124]

In v6 this works

const contractFactory = new ethers.ContractFactory(abi,binary,wallet);
console.log("Deploying please wait....");
const contract = await contractFactory.deploy();
await contract.deploymentTransaction()?.wait(1);
console.log("Contract address: ", await contract.getAddress());
const FavNumber = await (contract as any)['retrieve']();
console.log('Current FavNumber is: ',FavNumber.toString());
const transactionResponse = await (contract as any)['store']("7");
const transactionReceipt = await transactionResponse?.wait(1);
const updatedFavNumber = await (contract as any)['retrieve']();
console.log('Updated Fav Number is: ', updatedFavNumber.toString());

FULL CODE

import { ethers } from "ethers";
import fs, { copySync, watchFile } from "fs-extra";
import 'dotenv/config';

async function main() {
    const provider = new ethers.AlchemyProvider('sepolia', process.env.API_KEY!);
    const wallet = new ethers.Wallet(process.env.PRIVATE_KEY! ,provider);
    // const encryptedJson = fs.readFileSync("./.encryptedJsonKey","utf-8")
    // let wallet = ethers.Wallet.fromEncryptedJsonSync( encryptedJson , process.env.PRIVATE_KEY_PASSWORD!);
    // wallet = await wallet.connect(provider);
    // const blockNumber = await provider.getBlockNumber();
    // console.log(blockNumber);
    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("Deploying please wait....");
    const contract = await contractFactory.deploy();
    await contract.deploymentTransaction()?.wait(1);
    console.log("Contract address: ", await contract.getAddress());
    const FavNumber = await (contract as any)['retrieve']();
    console.log('Current FavNumber is: ',FavNumber.toString());
    const transactionResponse = await (contract as any)['store']("7");
    const transactionReceipt = await transactionResponse?.wait(1);
    const updatedFavNumber = await (contract as any)['retrieve']();
    console.log('Updated Fav Number is: ', updatedFavNumber.toString());  
}
main()
    .then(() => process.exit(0))
    .catch((error)=> {
        console.error(error);
        process.exit(1);
    });