For those of you want to Migrate to VRF 2.5

[HarigovindM-G]

Just wanted to share that I’ve migrated the project from the course to VRF 2.5. If any of you are thinking about making the switch or just want to see how it’s done, I’ve implemented it in my repo here: https://github.com/HarigovindM-G/Lucky-Node-Hardhat

I’m not an expert, but hopefully, this can be helpful if you’re looking to update your own projects. Feel free to take a look or reach out if you have any questions!

Best,
Hari

[Marcrus813]

Hi! Sorry to bother you, I am having a problem with VRF V2.5 and was hoping that you could help me out? My code passes tests with mocks in local environment, but it gets reverted when calling requestRandomWords (regardless of the request was embedded in performUpkeep or not) on Sepolia. And not just the lottery project, I'm having the same problem with the NFT project(my repo) later on where it involves getting a random number to determine URI of the NFT. Here's my performUpkeep for the Lottery project(the reop is here):

function performUpkeep(bytes calldata) external override {
        (bool upkeepNeeded, ) = checkUpkeep("0x");
        if (upkeepNeeded) {
            emit TestPerforming();
            s_state = RaffleState.CALCULATING;
            emit TestChangedState();
            uint256 requestId = s_vrfCoordinator.requestRandomWords( 
                VRFV2PlusClient.RandomWordsRequest({
                    keyHash: i_keyHash,
                    subId: i_subscriptionId,
                    requestConfirmations: i_requestConfirmations,
                    callbackGasLimit: i_callbackGasLimit,
                    numWords: i_numWords,
                    extraArgs: VRFV2PlusClient._argsToBytes(
                        VRFV2PlusClient.ExtraArgsV1({nativePayment: false})
                    )
                })
            );

            emit randomWinnerRequested(requestId);
        } else {
            revert Raffle__UpkeepNotNeeded(
                address(this).balance,
                s_players.length,
                uint256(s_state)
            );
        }
    }

I followed the official guide, and to test whether it's issues with my subscription, I deployed the VRFD20 contract to Sepolia and played with it, it seems to be working fine, which verified that my subscription works fine;
Again, sorry to bring up this subject after such a long time, any help would be much appreciated!