REST API
Portfolio reads and signature-authorized cancellation.
Developers / 01
Integrate against published evidence
Confirm the active proxy, network and settlement token, load the checked-in ABI, then calculate fees from the contract rather than hard-coding historical values.
Quick start
Verify network
Arbitrum One chain ID is 42161.
Load proxy ABI
Use the active proxy with StockTrading.json.
Read configuration
Read settlement token, factory, fee, asset fee and minimum fee.
Approve exact assets
Show spender and requested amount before ERC-20 approval.
const provider = new ethers.BrowserProvider(window.ethereum);
const signer = await provider.getSigner();
const network = await provider.getNetwork();
if (network.chainId !== 42161n) throw new Error('Switch to Arbitrum One');
const trading = new ethers.Contract(TRADING_PROXY, STOCK_TRADING_ABI, signer);
const fee = await trading.calculateFee(orderValue, 1);
Contract & ABI
Functions, events, enums and downloads.