0x Version 8.9.1 Download- -

# Install the core 0x libraries at version 8.9.1 npm install @0x/contract-addresses@8.9.1 npm install @0x/contract-wrappers@8.9.1 npm install @0x/utils@8.9.1 npm install @0x/order-utils@8.9.1 To verify the download was successful:

| Feature | 0x v7 | 0x v8.9.1 | | :--- | :--- | :--- | | | Hardcoded | Dynamic via AssetProxyRegistry | | Order Validation | validateOrder method | validateOrderWithContext method | | Liquidity Pools | No native support | Native LP integration | | Transaction Calldata | Larger | Optimized via calldata compression | 0x Version 8.9.1 Download-

const OrderBuilder = require('@0x/order-utils'); const assetDataUtils = require('@0x/order-utils'); const BigNumber = require('@0x/utils'); async function main() // Example: Create a sell order for WETH to DAI const makerAssetData = assetDataUtils.encodeERC20AssetData('0xTokenA'); const takerAssetData = assetDataUtils.encodeERC20AssetData('0xTokenB'); # Install the core 0x libraries at version 8

0x is an open protocol that facilitates low-friction peer-to-peer exchange of Ethereum-based assets (ERC-20, ERC-721, and more). Unlike centralized exchanges, 0x uses off-chain order relayers and on-chain settlement. const assetDataUtils = require('@0x/order-utils')

require("@nomiclabs/hardhat-waffle"); const getContractAddressesForChainId = require('@0x/contract-addresses'); module.exports = solidity: "0.8.19", // Compatible with 0x v8.9.1 networks: goerli: url: https://goerli.infura.io/v3/YOUR_KEY , chainId: 5, , , // 0x v8.9.1 uses chainId 1 (mainnet), 5 (goerli), 137 (polygon) ; Create a file createOrder.js to validate your installation: