npx hardhat verify MY_CONTRACT 'MY_IPFS_URL' --network rinkeby. Error

[AndreTsao]

I try to verify my contract by npx hardhat verify MY_CONTRACT 'MY_IPFS_URL' --network rinkeby but there is an error:

Error in plugin @nomiclabs/hardhat-etherscan: Failed to send contract verification request.
Endpoint URL: https://api-rinkeby.etherscan.io/api
Reason: Connect Timeout Error

NomicLabsHardhatPluginError: Failed to send contract verification request.
Endpoint URL: https://api-rinkeby.etherscan.io/api
Reason: Connect Timeout Error

Could you please help me. Thank you

[zoeyTM]

Hi @JetCyC , it's possible that etherscan's API was down or something similar. Could you please try again and also double check your URL and internet connection?

Closing this for now as it doesn't appear to be a bug in hardhat. If there's more info that alludes to an issue being present then we can reopen. Otherwise please check out our discord server for more general support.

Thanks!

[AndreTsao]

Thanks!

[ronneycjm]

Hi @JetCyC and @morgansliman , I have also met this issue by verifying contract on ropsten:

Nothing to compile
Error in plugin @nomiclabs/hardhat-etherscan: Failed to send contract verification request.
Endpoint URL: https://api-ropsten.etherscan.io/api
Reason: Connect Timeout Error

I set up the proxy in vscode and the proxy works fine for me. I have no idea what's up with this issue.....

[zhijiewong]

Hi @JetCyC and @morgansliman , I have also met this issue by verifying contract on ropsten:

Nothing to compile
Error in plugin @nomiclabs/hardhat-etherscan: Failed to send contract verification request.
Endpoint URL: https://api-ropsten.etherscan.io/api
Reason: Connect Timeout Error

I set up the proxy in vscode and the proxy works fine for me. I have no idea what's up with this issue.....

Would you send me the proxy please?

[ronneycjm]

Hi @JetCyC and @morgansliman , I have also met this issue by verifying contract on ropsten:

Nothing to compile
Error in plugin @nomiclabs/hardhat-etherscan: Failed to send contract verification request.
Endpoint URL: https://api-ropsten.etherscan.io/api
Reason: Connect Timeout Error

I set up the proxy in vscode and the proxy works fine for me. I have no idea what's up with this issue.....

Would you send me the proxy please?

Proxy works fine when visiting websites and other operations while not working in verifying contract.......
I setup own proxy on localhost port7078 in console like this:

npm config set proxy http://localhost:7078

[AndreTsao]

proxy

Thank you. So how to set localhost proxy

[AndreTsao]

hello, have you solve the problem?

[ronneycjm]

hello, have you solve the problem?

see solution here: #2348
by @0xleung

[AndreTsao]

hello, have you solve the problem?

see solution here: #2348 by @0xleung

tks，bro

[AndreTsao]

I still have this issue, sad

[AndreTsao]

Finally, I solved the problem in other way. I verify & publish manually contract source code in etherscan by Standard Json-Input. It is in xxx/artifacts/build-info/xxxx.json, the "input" part. I put the the "input" part json in etherscan.

[RoamWang]

meet same issue, I don't know how the fix this

[RoamWang]

Finally, I solved the problem in other way. I verify & publish manually contract source code in etherscan by Standard Json-Input. It is in xxx/artifacts/build-info/xxxx.json, the "input" part. I put the the "input" part json in etherscan.

sir, can you explain the steps to me? thank you