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API Reference
Text | Description |
|---|---|
Constructors | Oracle vrf initialization |
Text | Description |
|---|---|
randomnessRequest | Make a request to generate random numbers |
fulfillRandomness | VRF Oracle will call back when receiving valid VRF proof data |
constructor (address _oraiToken, address _oracle) public {
fee = 1000000000000000000;
orai = _oraiToken;
oracle = _oracle;
}
function randomnessRequest(uint256 _seed, bytes memory _data) public returns (bytes32 reqId);
- _seed : a random number provided by the caller
- _data : the result of callbackAddress and callbackFunc after encoding
bytes memory data = abi.encode(address(this), this.fulfillRandomness.selector);
- callbackAddress: smart contract address receive random number
- callbackFunct : hen a function is called, the first 4 bytes of
calldataspecifies which function to call.
function fulfillRandomness(bytes32 reqId, bytes calldata _data, uint8 v, bytes32 r, bytes32 s) external;
- reqId: request id generated when calling function randomnessRequest
- _data: includes callbackAddress and callbackFunc after encode
- v,r,s: proof vrf
Last modified 1yr ago