Saving a PhpSpreadSheet through button click
First you need to set an endpoint in your routes to call it using ajax (axios in your case):
Route::get('spreadsheet/download',[ 'as' => 'spreadsheet.download', 'uses' => 'SpreadsheetController@download']);In your controller:
public function download (){ $fileContents = Storage::disk('local')->get($pathToTheFile); $response = Response::make($fileContents, 200); $response->header('Content-Type', Storage::disk('local')->mimeType($pathToTheFile)); return $response;}In case you don't have the file you can save it to php://output:
public function download (){ $writer = \PhpOffice\PhpSpreadsheet\IOFactory::createWriter($spreadsheet, "Xlsx"); header('Content-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet'); header('Content-Disposition: attachment; filename="file.xlsx"'); $writer->save("php://output");}Now you just need to call the endpoint /spreadsheet/download to start the download, but a normal <a href="/spreadsheet/download">Download</a> would work.
Hope this helps you.