app/composables/utils/useDownloadFromRoute.ts

import FileSaver from 'file-saver'
import { useAp2iRequestService } from '~/composables/data/useAp2iRequestService'
import File from '~/models/Core/File'

/**
 * Permet de télécharger un fichier fourni par la route donnée
 * @param route
 * @param filename
 */
export const useDownloadFromRoute = async (route: string, filename: string) => {
  const { apiRequestService } = useAp2iRequestService()

  // @ts-expect-error La méthode get renvoie bien un blob dans ce cas là
  const response = (await apiRequestService.get(route)) as Blob

  if (!response || response.size === 0) {
    console.error('Error: no file found at ' + route)
  }

  const blob = new Blob([response], { type: response.type })

  FileSaver.saveAs(blob, filename)
}