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Comments (2)

rgottleber avatar rgottleber commented on June 16, 2024

Hi,
It looks like you have code from RandomNumberConsumer_unit_test.js as well as RandomNumberConsumer.sol

If those are the files you are referencing, the difference in the values is because the first request id
transactionReceipt.events[0].topics[1] is the id of the request to the RandomNumberConsumer contract
while
requestId = requestRandomness(keyHash, fee); is the id of the request to the VRF Coordinator contract.

Closing this for now, but feel free to follow up if more information would help.

from hardhat-starter-kit.

cuckflong avatar cuckflong commented on June 16, 2024

Thanks for the response but I thought vrfCoordinatorMock.callBackWithRandomness is suppose to be called with the id of the request to the VRF Coordinator contract instead of id of the request to the RandomNumberConsumer contract

const transaction = await randomNumberConsumer.getRandomNumber()
const transactionReceipt = await transaction.wait(1)
const requestId = transactionReceipt.events[0].topics[1]
const randomValue = 777
await vrfCoordinatorMock.callBackWithRandomness(
    requestId,
    randomValue,
    randomNumberConsumer.address
 )

Such that when you try to do something like https://docs.chain.link/docs/chainlink-vrf-best-practices/v1/#having-multiple-vrf-requests-in-flight will work properly

from hardhat-starter-kit.

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