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Chainlinking!

Patrick Collins PatrickAlphaC

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Chainlinking!
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@PatrickAlphaC
PatrickAlphaC / TestRawCall.vy
Created Aug 1, 2022
Vyper example of making a raw call
View TestRawCall.vy
# # SPDX-License-Identifier: MIT
# # @version ^0.3.3
# val: public(uint256)
# @external
# def runRawCall(newVal: uint256, myAdd: address):
# # call_data: Bytes[3236] = _abi_encode(requestId, words, method_id=method_id("rawFulfillRandomWords"))
# # call_data: Bytes[68] = concat(method_id("rawFulfillRandomWords"), convert(requestId, bytes32), convert(words, bytes32))
# call_data: Bytes[36] = _abi_encode(newVal, method_id=method_id("funcToCall(uint256)"))
@PatrickAlphaC
PatrickAlphaC / MeMo.sol
Created Jul 14, 2022
Look at how msg.sender works across contracts
View MeMo.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
interface IMo{
function callMeDifferentContract() external returns(address);
}
contract Me{
address public senderOne;
View SelectorsAndSignatures.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.7;
contract SelectorsAndSignatures {
address public s_someAddress;
uint256 public s_amount;
function getSelectorOne() public pure returns(bytes4 selector){
selector = bytes4(keccak256(bytes("transfer(address,uint256)")));
}
View StringConcater.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.8.12;
contract StringConcater {
// only in 0.8.12 and above
function concatStringsNewWay() public pure returns(string memory){
string memory hiMom = "Hi Mom, ";
string memory missYou = "miss you.";
return string.concat(hiMom, missYou);
View ErrorGasOptimizations.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.7;
error TooLowValue();
// https://rinkeby.etherscan.io/tx/0x7cb53c1814638d217d8030d24141dd64f97fe557480e9b60b7bcd28af5d87014
// Deploy Cost: 113,341
contract Test {
// https://rinkeby.etherscan.io/tx/0x0a4ea95262492b62f83a81970a709c62291d5c575cf522dcb48b9e8e5b399006
// Failed: 21,473
View FunWithStorage.sol
pragma solidity 0.8.7;
contract FunWithStorage {
uint256 public cat;
bytes32 private constant DATA_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
function getData() public view returns (uint256 data) {
bytes32 slot = DATA_SLOT;
assembly {
data := sload(slot)
View EncodingFun.sol
// This example code is designed to quickly deploy an example contract using Remix.
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
contract EncodingFun {
function encodeThenDecode(uint256 value) public pure returns (uint256) {
bytes memory encodedData = abi.encodePacked(value);
uint256 decodedData = abi.decode(encodedData, (uint256));
return decodedData;
}
View Weather.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.6.8;
import "@chainlink/contracts/src/v0.6/ChainlinkClient.sol";
contract Weather is ChainlinkClient {
using Chainlink for Chainlink.Request;
bytes32 public avgTempJobId;
uint256 public avgTemp;
View L2.sol
pragma solidity ^0.6.0;
import "@chainlink/contracts/src/v0.6/interfaces/AggregatorV3Interface.sol";
import "@chainlink/contracts/src/v0.6/interfaces/FlagsInterface.sol";
contract OCRPriceConsumer {
// Identifier of the Sequencer offline flag on the Flags contract
address constant private FLAG_ARBITRUM_SEQ_OFFLINE = address(bytes20(bytes32(uint256(keccak256("chainlink.flags.arbitrum-seq-offline")) - 1)));
AggregatorV3Interface internal priceFeed;
FlagsInterface internal chainlinkFlags;
View GenericLargeResponse.sol
//SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import "@chainlink/contracts/src/v0.8/ChainlinkClient.sol";
/**
* @notice DO NOT USE THIS CODE IN PRODUCTION. This is an example contract.
*/
contract GenericBigWord is ChainlinkClient {
using Chainlink for Chainlink.Request;