Lesson 5: encrypt.js

[Aishwaria8786]

I am facing a problem. Don't know what to do.

const ethers = require("ethers");
const fs = require("fs-extra");
require("dotenv").config();

async function main() {
  const wallet = new ethers.Wallet(process.env.PRIVATE_KEY);
  const encryptedJsonKey = await wallet.encrypt(
    process.env.PRIVATE_KEY_PASSWORD,
    process.env.PRIVATE_KEY
  );
  console.log(encryptedJsonKey);
  fs.writeFileSync("./encryptedKey.json", encryptedJsonKey);
}

main()
  .then(() => process.exit(0))
  .catch((error) => {
    console.error(error);
    process.exit(1);
  });

In terminal it is showing:

Error: progressCb should be function
at scryptInit (hh-fcc/ethers-simple-storage/node_modules/@noble/hashes/scrypt.js:110:15)
    at scryptAsync (hh-fcc/ethers-simple-storage/node_modules/@noble/hashes/scrypt.js:199:84)
    at _scryptAsync (hh-fcc/ethers-simple-storage/node_modules/ethers/lib.commonjs/crypto/scrypt.js:8:43)
    at scrypt (hh-fcc/ethers-simple-storage/node_modules/ethers/lib.commonjs/crypto/scrypt.js:55:42)
    at encryptKeystoreJson (hh-fcc/ethers-simple-storage/node_modules/ethers/lib.commonjs/wallet/json-keystore.js:291:45)
    at Wallet.encrypt (hh-fcc/ethers-simple-storage/node_modules/ethers/lib.commonjs/wallet/wallet.js:48:65)
    at main (hh-fcc/ethers-simple-storage/encryptKey.js:7:41)
    at Object.<anonymous> (hh-fcc/ethers-simple-storage/encryptKey.js:15:1)
    at Module._compile (node:internal/modules/cjs/loader:1254:14)
    at Module._extensions..js (node:internal/modules/cjs/loader:1308:10)

if (onProgress !== undefined && typeof onProgress !== 'function')
        throw new Error('progressCb should be function');

What should I do now?

[alymurtazamemon]

@Aishwaria8786 I am also not familiar with this error. Can you leave your repo link so I can test it locally?

[Aishwaria8786]

I solved it by deleting the node modules and reinstalling them.

[namyasharma]

Hi @Aishwaria8786 , I tried doing the same, but I am still facing the same issue. Did you figure out what the problem was?

[Aishwaria8786]

The problem is about the ether.js version. Try to install versions similar to Patrick Collins project.

[TLBTrung-222]

In ethers ver 6, wallet.encrypt no need to to specify the private key. In your code, you just need to get rid of process.env.PRIVATE_KEY, like this:

const encryptedJsonKey = await wallet.encrypt(process.env.PRIVATE_KEY_PASSWORD);

[RMTKroos]

Thanks very much！Here's the source code for wallet.encrypt in ethers.js 6.11.0

async encrypt(password: Uint8Array | string, progressCallback?: ProgressCallback): Promise<string> {
        const account = { address: this.address, privateKey: this.privateKey };
        return await encryptKeystoreJson(account, password, { progressCallback });
}