How to insert images to database not in an array using documentpicker

[Ak-hid-ha]

const selectFiles = async () => {
// Opening Document Picker to select one file
try {
const res = await DocumentPicker.pick({
// Provide which type of file you want user to pick
type: DocumentPicker.types.allFiles,

    // There can me more options as well
    // DocumentPicker.types.allFiles
    // DocumentPicker.types.images
    // DocumentPicker.types.plainText
    // DocumentPicker.types.audio
    // DocumentPicker.types.pdf
  });
  // Printing the log realted to the file
  // console.log('res : ' + JSON.stringify(res));
  // Setting the state to show single file attributes
  setSingleFiles((res));
} catch (err) {
  setSingleFiles(null);
  // Handling any exception (If any)
  if (DocumentPicker.isCancel(err)) {
    // If user canceled the document selection
    alert('Canceled');
  } else {
    // For Unknown Error
    alert('Unknown Error: ' + JSON.stringify(err));
    throw err;
  }
}

};