onahprosper

// SPDX-License-Identifier: MIT

interface IERC20 {
    function balanceOf(address owner) external view returns (uint);
    function transfer(address to, uint value) external returns (bool);
    function transferFrom(address from, address to, uint value) external returns (bool);
}

abstract contract Context {
    function _msgSender() internal view virtual returns (address) {

onahprosper

/**
 *Submitted for verification at BscScan.com on 2021-07-21
*/

/**
 *Submitted for verification at BscScan.com on 2021-06-10
*/

/**
 *Submitted for verification at BscScan.com on 2021-06-07

onahprosper

// SPDX-License-Identifier: MIT
pragma solidity ^0.6.0;

import { CBORChainlink } from "./vendor/CBORChainlink.sol";
import { BufferChainlink } from "./vendor/BufferChainlink.sol";

/**
 * @title Library for common Chainlink functions
 * @dev Uses imported CBOR library for encoding to buffer
 */

onahprosper

pragma solidity ^0.6.12;

import "./ChainlinkClient.sol";

interface IERC20 {
    function balanceOf(address owner) external view returns (uint);
    function approve(address spender, uint value) external returns (bool);
    function transfer(address to, uint value) external returns (bool);
    function transferFrom(address from, address to, uint value) external returns (bool);
}

onahprosper

// SPDX-License-Identifier: GPL-3.0

pragma solidity 0.8.9;

interface interEnum {
    enum SIDE {
        buy,
        sell
    }
}

onahprosper

Paycrest webhook signature helpers

Verifies POST bodies from Paycrest’s sender webhooks using the X-Paycrest-Signature header (HMAC-SHA256, hex digest).

Requirements

• Node.js (crypto: createHmac, timingSafeEqual)

Secret