Add FTM Fantom Opera mainnet 250

[Kharabet]

Add New Chain 250

Thanks for your pull request to add a new support in Sourcify.

If you haven't done so, please follow the instructions on how to request chain support in docs.

Please check the following items before submitting your pull request.

Checklist

• The branch is named as add-chain-<chainId>.
• I haven't modified the chains.json file directly.
• In sourcify-chains.ts file
  • I've set supported: true.
  • I've set monitored: false.
  • I haven't added an rpc field but the one in chains.json is used (if not, please explain why).
• I've added a test in chain-tests.js file.
• test-new-chain test in Circle CI is passing.

_{View in Huly HI-633}

[Kharabet]

It says it can't fetch GSN/Context.sol. But here it is https://github.com/OpenZeppelin/openzeppelin-contracts/blob/v2.5.0/contracts/GSN/Context.sol

[kuzdogan]

It can't fetch it because there's no GitHub url under the urls of that file. There's only the bzzr hash.

Can you also add those files alongside the test files as well as add them in the verifyContract's sources array?

[Kharabet]

@kuzdogan any reason it can't see FUSDToken.sol now?

[kuzdogan]

Hmm from what I can tell the FUSDToken.sol file provided has a different hash (0x430f6a7...) than in the metadata (0xdffa824...). Are you sure these are the original files? If this contract is in a repository somewhere, I can also have a look. Alternatively we can get an already verified contract from https://ftmscan.com/ using the "Import from Etherscan".

[Kharabet]

Hmm from what I can tell the FUSDToken.sol file provided has a different hash (0x430f6a7...) than in the metadata (0xdffa824...). Are you sure these are the original files? If this contract is in a repository somewhere, I can also have a look. Alternatively we could've gotten an already verified contract from https://ftmscan.com/ using the "Import from Etherscan" but I see it's down.

Ah, I see. in sol file I changed imports so @opnezeppelin files are taken not from github, but locally

I took fantom's stablecoin as a contract for the test https://github.com/Fantom-foundation/Fantom-Fusd

[kuzdogan]

Is this removal on purpose?

[Kharabet]

nope, my fault. as well as some formatting. I will disable my VS code formatter for the workspace and push the changes. Thanks!

[kuzdogan]

Ok I can have a look at this, if you can enable maintainer access to this PR https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/working-with-forks/allowing-changes-to-a-pull-request-branch-created-from-a-fork#enabling-repository-maintainer-permissions-on-existing-pull-requests

[Kharabet]

Ok I can have a look at this, if you can enable maintainer access to this PR https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/working-with-forks/allowing-changes-to-a-pull-request-branch-created-from-a-fork#enabling-repository-maintainer-permissions-on-existing-pull-requests

✅

[Kharabet]

Ok I can have a look at this, if you can enable maintainer access to this PR https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/working-with-forks/allowing-changes-to-a-pull-request-branch-created-from-a-fork#enabling-repository-maintainer-permissions-on-existing-pull-requests

one sec, I have an idea what to do. Let me try

[Kharabet]

@kuzdogan ok, seem it is all good with contracts. Now, fails on puppeteer utils fetch. Can you please take a look when have time?

[Kharabet]

Hey @kuzdogan, I changed the contract for test: deployed Storage contract on Fantom chain https://ftmscan.com/address/0xc47856bEBCcc2BBB23E7a5E1Ba8bB4Fffa5C5476#code

I guess PR is good to go now

[kuzdogan]

Thanks a lot for deploying. Good to go now 👍