Utilities

import {
  keccak256,
  id,
  toHex,
  isHex,
  getCurrentTimestamp,
  addDays,
  getChainFromId,
  parseEther,
  formatEther,
  parseUnits,
  isAddress,
  getAddress,
  stringToHex,
  CHAIN_IDS,
  BPS_DENOMINATOR,
  BYTES32_ZERO,
  DATA_REGISTRY_KEYS,
  multicall,
  scopedToPlatform,
} from '@oaknetwork/contracts-sdk';

const platformHash = keccak256(toHex('my-platform'));
const fromHex      = keccak256('0x1234');

const topic = id('Transfer(address,address,uint256)');

isHex('0x1234'); // true
isHex('hello');  // false

const currency = toHex('USD', { size: 32 }); // bytes32
const raw      = toHex('hello');

const hex = stringToHex('hello');

isAddress('0x1234...'); // true or false

const checksummed = getAddress('0x1234...');

const wei = parseEther('1.5'); // 1500000000000000000n

const eth = formatEther(1500000000000000000n); // "1.5"

const usdc = parseUnits('100', 6); // 100000000n

const now = getCurrentTimestamp();

const deadline = addDays(getCurrentTimestamp(), 30); // 30 days from now

const chain = getChainFromId(CHAIN_IDS.CELO_TESTNET_SEPOLIA);

import {
  createBrowserProvider,
  getSigner,
  createJsonRpcProvider,
  createWallet,
} from '@oaknetwork/contracts-sdk';

// Browser (MetaMask, etc.)
const provider = createBrowserProvider(window.ethereum, chain);
const signer   = await getSigner(window.ethereum, chain);

// Server-side
const rpcProvider = createJsonRpcProvider('https://rpc-url.com', chain);
const wallet      = createWallet('0x...privateKey', 'https://rpc-url.com', chain);

CHAIN_IDS.ETHEREUM_MAINNET          // 1
CHAIN_IDS.CELO_MAINNET              // 42220
CHAIN_IDS.ETHEREUM_TESTNET_SEPOLIA  // 11155111
CHAIN_IDS.ETHEREUM_TESTNET_GOERLI   // 5
CHAIN_IDS.CELO_TESTNET_SEPOLIA      // 11142220

const feeAmount = (raisedAmount * platformFee) / BPS_DENOMINATOR;

DATA_REGISTRY_KEYS.BUFFER_TIME              // keccak256("bufferTime")
DATA_REGISTRY_KEYS.MAX_PAYMENT_EXPIRATION   // keccak256("maxPaymentExpiration")
DATA_REGISTRY_KEYS.CAMPAIGN_LAUNCH_BUFFER   // keccak256("campaignLaunchBuffer")
DATA_REGISTRY_KEYS.MINIMUM_CAMPAIGN_DURATION // keccak256("minimumCampaignDuration")

const scopedKey = scopedToPlatform(
  DATA_REGISTRY_KEYS.BUFFER_TIME,
  keccak256(toHex('my-platform')),
);
const value = await gp.getFromRegistry(scopedKey);

import { multicall } from '@oaknetwork/contracts-sdk';

const gp = oak.globalParams('0x...');

const [platformCount, feePercent, admin] = await multicall([
  () => gp.getNumberOfListedPlatforms(),
  () => gp.getProtocolFeePercent(),
  () => gp.getProtocolAdminAddress(),
]);

import {
  createPublicClient,
  createWalletClient,
  http,
  custom,
  mainnet,
  sepolia,
  goerli,
} from '@oaknetwork/contracts-sdk';