Builder Codes

await dex.approveMaxBuilderFee({
  builderAddr: builderAddress, // Builder's address (64 characters, padded with zeros)
  maxFee: maxBuilderFeeBps, // Maximum fee in basis points (e.g., 10 = 0.1%)
});

const orderResult = await dex.placeOrder({
  marketName: "APT/USD",
  price: 300000000,
  size: 1000000000,
  isBuy: true,
  timeInForce: TimeInForce.ImmediateOrCancel,
  isReduceOnly: false,
  // Builder code parameters
  builderAddr: builderAddress, // Same address from Step 1
  builderFee: maxBuilderFeeBps, // Must be <= maxFee from Step 1
});

import {
  DecibelWriteDex,
  DecibelReadDex,
  TESTNET_CONFIG,
  TimeInForce,
} from "@decibeltrade/sdk";
import { Ed25519Account, Ed25519PrivateKey } from "@aptos-labs/ts-sdk";

// Setup account from private key
const privateKeyHex = process.env.PRIVATE_KEY;
const user = new Ed25519Account({
  privateKey: new Ed25519PrivateKey(privateKeyHex!),
});

// Initialize DEX clients
const dex = new DecibelWriteDex(TESTNET_CONFIG, user, {
  skipSimulate: true,
});
const readDex = new DecibelReadDex(TESTNET_CONFIG);

// Aptos addresses must be 64 characters (pad with leading zeros after 0x)
const builderAddress =
  "0x0000000000000000000000008c967e73e7b15087c42a10d344cff4c96d877f1d";
const maxBuilderFeeBps = 10; // 10 basis points = 0.1%

// Step 1: Approve builder fee
await dex.approveMaxBuilderFee({
  builderAddr: builderAddress,
  maxFee: maxBuilderFeeBps,
});
console.log("\nBuilder fee approved...");

// Step 2: Place a market order with builder fee
console.log("\nPlacing order with builder fee...");
const orderResult = await dex.placeOrder({
  marketName: "APT/USD",
  price: 300000000, // 3 USD
  size: 1000000000, // 1000 APT
  isBuy: true,
  timeInForce: TimeInForce.ImmediateOrCancel, // Market order
  isReduceOnly: false,
  builderAddr: builderAddress,
  builderFee: maxBuilderFeeBps,
});

if (orderResult.success) {
  console.log(`Order placed! Transaction: ${orderResult.transactionHash}`);
}