How to verify contract on cronos test net using hardhat

Smart Contracts
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1

Hi, I am on developing smart contract on Cronos Test net using Hardhat.
Then, I found it's difficult to verify the contract on Cronos.

I have verified smart contract on other net (like ethereum, bsc and others), but can you help me how to verify smart contract on Cronos Testnet using Hardhat?
Thanks in advance.

2

Hey @TrustedDev_1325
check this out maybe can help https://cronos.org/explorer/api-docs#contract
I saw that supports sourcify so you could use the hardhat plugin hardhat-deploy
https://www.npmjs.com/package/hardhat-deploy#5-hardhat-sourcify

1 Like
3

Thanks @FreezyEx
When I run this command npx hardhat --network testnet sourcify, I got this error.
Error HH303: Unrecognized task sourcify
How can I resolve this?

4

And if I use this https://cronos.org/explorer/api-docs#contract, I need to link imported libraries.
These are libraries I used.


import "@openzeppelin/contracts/token/ERC721/ERC721.sol";
import "@openzeppelin/contracts/token/ERC721/extensions/ERC721Enumerable.sol";
import "@openzeppelin/contracts/token/ERC721/extensions/ERC721Burnable.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/utils/math/SafeMath.sol";
import "@openzeppelin/contracts/utils/Counters.sol";

Since it is difficult to write all libraries I used in editor, it's optimal to use Hardhat to verify.
So please help me to verify using Hardhat.
Thanks.

5

Did you try from truffle yet?

7

No, I mainly use Hardhat for deploying and verifying contract.

8

You should try it, maybe it will help, you can referr to truffle guide for it.