05-batch-orders.ts

/**
 * 05 — Batch create / edit / delete orders
 *
 * Delta India batch endpoints take `product_id` at the top level and a flat
 * `orders[]` payload — they reject `product_id` per child order.
 *
 * Authenticated. Run: npx tsx examples/05-batch-orders.ts
 */
import { DeltaClient, num } from '../src/index.js';

async function main() {
  const client = new DeltaClient({
    testnet: true,
    apiKey: process.env.DELTA_API_KEY,
    apiSecret: process.env.DELTA_API_SECRET,
  });

  try {
    const product = await client.products.getBySymbol('BTCUSD');
    const ticker = await client.products.ticker('BTCUSD');
    const mark = num(ticker.mark_price);

    // Place a 3-rung ladder of buy limits below mark
    const created = await client.orders.batchCreate({
      product_id: product.id,
      orders: [
        { size: '1', side: 'buy', order_type: 'limit_order', limit_price: (mark * 0.97).toFixed(0) },
        { size: '1', side: 'buy', order_type: 'limit_order', limit_price: (mark * 0.95).toFixed(0) },
        { size: '1', side: 'buy', order_type: 'limit_order', limit_price: (mark * 0.93).toFixed(0) },
      ],
    });
    console.log(`Created ${created.length} orders`);

    // Edit all three rungs at once (move them tighter)
    await client.orders.batchEdit({
      product_id: product.id,
      orders: created.map((o, i) => ({
        id: o.id,
        product_id: product.id,
        limit_price: (mark * (0.98 - 0.01 * i)).toFixed(0),
      })),
    });
    console.log('Edited ladder');

    // Cancel them all
    await client.orders.batchDelete({
      product_id: product.id,
      orders: created.map((o) => ({ id: o.id })),
    });
    console.log('Cancelled ladder');
  } finally {
    client.destroy();
  }
}

main().catch(console.error);