User Frank Kong

5 votes

How to get public key from private key in Web3j

answered Aug 4, 2018 at 5:42

3 votes

Accepted

Is ChainLink's VRF susceptible to a 51% attack?

answered Feb 7 at 3:58

2 votes

Accepted

How to guarantee unique number combinations based on Chainlink VRFv2?

answered Aug 5, 2022 at 4:29

2 votes

How to generate random number and get it at the same time using Chainlink VRFv2?

answered Sep 16, 2022 at 5:03

2 votes

Accepted

Keepers explained in Defi

answered Feb 2 at 9:24

1 vote

Accepted

How to specify return value of chainlink MockOracle

answered Feb 5 at 2:29

1 vote

How exactly does smart contract consumes data from oracles?

answered Oct 27, 2022 at 8:25

1 vote

How do Chainlink Oracles make money?

answered Aug 6, 2022 at 4:07

1 vote

Withdraw eth from contract address

answered Aug 7, 2022 at 9:27

1 vote

Accepted

random number from chainlink vrf at hardhat test always 0

answered Aug 3, 2022 at 5:32

1 vote

Chainlink VRF2, Automation - Raffle Game

answered May 9 at 4:32

1 vote

Accepted

Can I deploy custom data feed?

answered Jun 30 at 7:13

0 votes

Call fundSubcription() chain link vrf v2 using brownie gas fee error?

answered Jun 30 at 7:37

0 votes

Accepted

Is it possible to wait for one block in order to get the VRF requested Number of words ? CoinFlip program

answered Aug 3 at 9:16

0 votes

How to call Chainlink Request Call from Another Contract

answered Aug 7 at 2:22

0 votes

Chainlink Stale Data latestRoundData() guide

answered Sep 10 at 1:28

0 votes

How to guarantee or ensure uniqueness based on Chainlink VRF?

answered Oct 12 at 5:58

0 votes

Error happened while trying to execute a function inside a smart contract: Chainlink Functions Contract Deployment

answered Nov 19 at 9:08

0 votes

Accepted

How to get a tweet content using oracle in the smart contract to verify a user

answered Apr 1 at 2:43

0 votes

Cannot get Chainlink Conversion ETH/USD Correct other than 0

answered Apr 3 at 9:56

0 votes

When should we use Chainlink time-based keepers?

answered Aug 3, 2022 at 10:46

0 votes

Can you concatenate a string url in solidity before sending it to a Chainlink APi? I tried with this but it didn't work

answered Aug 2, 2022 at 15:47

0 votes

ERROR processing when testing the contract - TypeError: Cannot read property 'length' of undefined

answered Aug 25, 2022 at 10:08

0 votes

Accepted

Transaction keeps failing in solidity

answered Aug 7, 2022 at 5:17

0 votes

How to fetch IPFS data on Polygon Smart contract?

answered Nov 11, 2022 at 8:02

0 votes

How to sign a transaction object from within a smart contract?

answered Dec 20, 2022 at 0:17

0 votes

Need for rawFulfillRandomWords in ChainLink's VRFConsumerBaseV2

answered Oct 3, 2022 at 3:26

0 votes

how can i use the sports data in my solidity smartcontract?

answered Feb 5 at 6:28

0 votes

Chainlink UpKeep Registration ABI Error Problem

answered Feb 3 at 1:46

Stack Exchange Network

29 Answers

How to get public key from private key in Web3j

Is ChainLink's VRF susceptible to a 51% attack?

How to guarantee unique number combinations based on Chainlink VRFv2?

How to generate random number and get it at the same time using Chainlink VRFv2?

Keepers explained in Defi

How to specify return value of chainlink MockOracle

How exactly does smart contract consumes data from oracles?

How do Chainlink Oracles make money?

Withdraw eth from contract address

random number from chainlink vrf at hardhat test always 0

Chainlink VRF2, Automation - Raffle Game

Can I deploy custom data feed?

Call fundSubcription() chain link vrf v2 using brownie gas fee error?

Is it possible to wait for one block in order to get the VRF requested Number of words ? CoinFlip program

How to call Chainlink Request Call from Another Contract

Chainlink Stale Data latestRoundData() guide

How to guarantee or ensure uniqueness based on Chainlink VRF?

Error happened while trying to execute a function inside a smart contract: Chainlink Functions Contract Deployment

How to get a tweet content using oracle in the smart contract to verify a user

Cannot get Chainlink Conversion ETH/USD Correct other than 0

When should we use Chainlink time-based keepers?

Can you concatenate a string url in solidity before sending it to a Chainlink APi? I tried with this but it didn't work

ERROR processing when testing the contract - TypeError: Cannot read property 'length' of undefined

Transaction keeps failing in solidity

How to fetch IPFS data on Polygon Smart contract?

How to sign a transaction object from within a smart contract?

Need for rawFulfillRandomWords in ChainLink's VRFConsumerBaseV2

how can i use the sports data in my solidity smartcontract?

Chainlink UpKeep Registration ABI Error Problem