The requests are made with this contract.
// SPDX-License-Identifier: UNLICENSED
pragma solidity 0.8.9;
import "./rrp/interfaces/IAirnodeRrpV0.sol";
contract MockedRequester {
address internal _airnodeRrp;
address internal _airnode;
address internal _sponsorWallet;
bytes32 internal _endpointIdUint256;
event Requested(bytes32 requestId);
constructor() {}
function setSettings(
address airnodeRrp,
address airnode,
address sponsorWallet,
bytes32 endpointIdUint256
) external {
_airnodeRrp = airnodeRrp;
_airnode = airnode;
_sponsorWallet = sponsorWallet;
_endpointIdUint256 = endpointIdUint256;
IAirnodeRrpV0(_airnodeRrp)
.setSponsorshipStatus(address(this), true);
}
///
/// Request
///
struct Request {
uint256 fromId;
uint256 toId;
uint256 timestamp;
}
mapping(bytes32 => Request) private _expectedRequests;
bytes private constant _PARAMS = hex"31730000000000000000000000000000000000000000000000000000000000005f6d696e436f6e6669726d6174696f6e730000000000000000000000000000003100000000000000000000000000000000000000000000000000000000000000";
function requestUint256(uint256 tokenIdCount, bytes4 selector) external {
bytes32 requestId = IAirnodeRrpV0(
_airnodeRrp
).makeFullRequest(
_airnode,
_endpointIdUint256,
address(this),
_sponsorWallet,
address(this),
selector,
_PARAMS
);
_expectedRequests[requestId] = Request(0, tokenIdCount, block.timestamp);
emit Requested(requestId);
}
///
/// Response
///
struct Response {
uint256 rawSeed;
uint256 timestamp;
}
mapping(bytes32 => Response) private _requestToResponse;
uint256 private _totalProbability;
function fulfillUint256(bytes32 requestId, bytes calldata data) external {
// validate request
Request memory seedRequest = _expectedRequests[requestId];
require(msg.sender == _airnodeRrp);
// decode seed
uint256 rawSeed = abi.decode(data, (uint256));
// set request's response
_requestToResponse[requestId] = Response(rawSeed, seedRequest.timestamp);
// iterate over token ids
uint256 change = 0;
for (uint256 i = seedRequest.fromId; i < seedRequest.toId; i++) {
change += (rawSeed ^ i) % type(uint32).max;
}
_totalProbability += change;
delete _expectedRequests[requestId];
}
function fulfillUint256Empty(bytes32, bytes calldata) external {
// do nothing
}
}
