estos son los datos que quiero enviar a api

"códigos postales": { "código postal_0": { "código postal_id": "código postal-0001" }, "código postal_1": { "código postal_id": "código postal-0002" } },

este es mi codigo

 const responsepostal = await axios.post (`${urldemo}postal-codes`) setData3(responsepostal.data.result) const [data3, setData3] = useState([]) const [postcodes, setPostcodess] = useState([]); var dataToSend = { postcodes: postcodes, }; <Picker style={GlobalSS.picker} // selectedValue={postcodes.toString()} selectedValue={postcodes} mode='dropdown' dropdownIconRippleColor='orange' dropdownIconColor='#FF8025' onValueChange={(itemValue, itemIndex) => setPostcodess(itemValue) }> <Picker.Item color='grey' label="Select Postal Code " value="" /> {data3.map(item => ( <Picker.Item label={item.text} value={item.id} /> ))} </Picker>