const items = [ { "productId": 1, "quantity": 2, "unitPrice": 100, "total": 200 } ]; const po = { "poNumber": "TEST-001", "issueDate": "2026-08-27T00:00:00Z", "items": items }; fetch('http://localhost:8080/api/purchase-orders', { method: 'POST', headers: { 'Content-Type': 'application/json', 'Authorization': 'Bearer test' }, body: JSON.stringify(po) }).then(r => r.text()).then(console.log).catch(console.error);