I just deployed a contract on mumbai and I am unable to verify it on polygonscan. Do you know if hardhat verify works for polygonscan?

Created by Sourajyoti Gupta, Modified on Fri, 28 Jul 2023 at 07:35 PM by Sourajyoti Gupta

To answer your question, Yes hardhat verify works for etherscan like a charm. All you need to do is set up your network and your etherscan API key under hardhat.config.ts folder for example:

const config: HardhatUserConfig = {

     solidity: {

          version: "your_solidity_version",

     },

     networks: {

          ethereum: {

               url: process.env.ETHEREUM_RPC_URL,

               gasPrice: "auto",

               account: process.env.YOUR_PRIVATE_KEY

          },

          mumbai: {

               url: process.env.MUMBAI_RPC_URL,

               gasPrice: "auto",

               account: process.env.YOUR_PRIVATE_KEY

          }         

     },

     etherscan: {

          apiKey: process.env.EXPLORER_API_KEY

     }

}

once your setup is done all you need to do is run the command

> npx hardhat verify --network <network-name-in-hardhat-config> DEPLOYED_CONTRACT_ADDRESS "Constructor arguments"