การดึงผลลัพธ์

{
  "job_id": "ext_01JBY7...",
  "needs_review": true,
  "data": {
    "invoice_no": "IV-2026-001",
    "vendor": { "name": "Example Co., Ltd.", "tax_id": "0105559999999" },
    "line_items": [
      { "description": "A4 paper", "quantity": 2, "unit_price": 500.0, "amount": 1000.0 }
    ]
  },
  "field_metadata": {
    "/invoice_no": {
      "status": "verified",
      "confidence": 0.98,
      "regions": [
        { "page": 1, "bbox": [0.684, 0.072, 0.912, 0.104], "text": "IV-2026-001" }
      ]
    },
    "/line_items/0/amount": {
      "status": "verified",
      "confidence": 0.93,
      "regions": [
        { "page": 1, "bbox": [0.811, 0.424, 0.928, 0.452], "text": "1,000.00" }
      ]
    }
  },
  "pages": [
    { "page": 1, "input_index": 0, "page_in_input": 1, "file_id": "file_01J9...", "width": 1240, "height": 1754 }
  ],
  "validation": { "missing_required": [], "below_threshold": [] },
  "usage": { "pages_processed": 1, "credits_micros": 0 }
}

function toPixels(bbox, pageWidth, pageHeight) {
  const [x1, y1, x2, y2] = bbox;
  return {
    x: x1 * pageWidth,
    y: y1 * pageHeight,
    width: (x2 - x1) * pageWidth,
    height: (y2 - y1) * pageHeight,
  };
}

const meta = result.field_metadata["/invoice_no"];
const page = result.pages.find((p) => p.page === meta.regions[0].page);
const box = toPixels(meta.regions[0].bbox, page.width, page.height);