How to Create a Signer Object from an Address in ethers.js

ethers.jshardhattesting

I have a list of addresses, and I would like to use them to test my contract in my hardhat ethers project. Normally I get a list of addresses like this:

[a, b, c] = await ethers.getSigners()

but what I want to do is take address 0x70997970C51812dc3A010C7d01b50e0d17dc79C8 and make it into a signer object so I can call:

contract.connect("0x70997970C51812dc3A010C7d01b50e0d17dc79C8").method()

Best Answer

Since a signer can be a Wallet, VoidSigner or JsonRpcSigner, you can use the jsonRpcProvider.getSigner( [ addressOrIndex ] ) which returns a JsonRpcSigner.

Related Solutions

[Ethereum] How to get contract’s ether balance at hardhat / waffle

const { ethers, waffle} = require("hardhat");
const provider = waffle.provider;
const balance0ETH = await provider.getBalance(user1.address);

Nodejs – How to Set Private Key for Ethers Signer?

You could simply replace the 2nd line in your code above and instead define the signer as follows:

const signer = new ethers.Wallet(your_private_key_string, provider);

You could also define a signer from a mnemonic instead of a private key, as follows:

const account = utils.HDNode.fromMnemonic(your_mnemonic_string).derivePath(`m/44'/60'/0'/0/${your_selected_account}`);

const signer = new Wallet(account, provider);

Where your_selected_account is the account index to use, starting from 0.

Note: make sure to use the right derivation path for you (Ledger, MEW, Metamask, ..etc).

Best Answer

Related Solutions

[Ethereum] How to get contract’s ether balance at hardhat / waffle

Nodejs – How to Set Private Key for Ethers Signer?

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