fs does not write buffer

[burki505]

I want to write buffered data to my file using fs but it does not work. What could be the problem?

`async import(dto: ImportDto, veritabaniId: number): Promise {
const quadDto = new QuadBulkCreateDto();
quadDto.quads = JSON.parse(dto.file.data);

try {
  await validate(quadDto);
  const dirPath = join(envConfig.quadsDataPath, veritabaniId.toString());
  const filePath = join(dirPath, 'quad_data.json');

  await fs.promises.mkdir(dirPath, { recursive: true });

  const binaryFile = Buffer.from(JSON.stringify(quadDto.quads));

  await fs.promises.writeFile(filePath, binaryFile);

  const fileData = await fs.promises.readFile(filePath);

  return fileData;
} catch (error) {
  throw error;
}

}`

[JimmyDaddy]

There is no problem about the write buffer code await fs.promises.writeFile(filePath, binaryFile);

import fs from 'fs';

const binaryFile = Buffer.from(JSON.stringify({
  a: 'test'
}));

fs.promises.writeFile('./test.txt', binaryFile);
// check the file test.txt content, you will get string '{"a":"test"}'

maybe the problem is quadDto.quads is an empty object/string?