Upload images using form data and return to front end in React js

I am using nestjs and react js to make an image uploader. For react i use this:

 const props = {
        onChange({ file, fileList }: any) {
            const fd = new FormData();
            fd.append('img', fileList[0].originFileObj);
            fetch('http://localhost:3000/upload', {
                method: 'POST',
                body: fd,
            })
                .then(async response => {
                    const data = await response.json();
                    console.log(data)
                })
                .catch(error => {
                    message.error('There was an error!', error);
                });
        },
        defaultFileList: [

        ],
    };


    return (
        <div>
            <Form
                name="form"
                className="form"
            >
            <Form.Item
                className="upload"
                valuePropName="fileList"
            >
                <Upload {...props}>
                    <Button>Upload</Button>
                </Upload>
            </Form.Item>
            </Form>
        </div>
    );
};

For NestJs i use:

@Controller()
export class AppController {
  constructor(private readonly appService: AppService) {}

  @Post('/upload')
  @UseInterceptors(
    FileInterceptor('img', {
      dest: './uploads',
    }),
  )
  uploadFile(@UploadedFile() file) {
    console.log(file, 'file');
  }
}

In console.log(file, 'file'); i get:

{
  fieldname: 'img',
  originalname: 'Full.jpg',
  encoding: '7bit',
  mimetype: 'image/jpeg',
  destination: './uploads',
  filename: '3c45cd07145707ec09235c7bf3954d7f',
  path: 'uploads\\3c45cd07145707ec09235c7bf3954d7f',
  size: 60655
} 

Question: Which info from the object above should i send back to front end and which to store in database?
Note: Now, in uploads folder in NestJs application i store 3c45cd07145707ec09235c7bf3954d7f after uploading the image. How i know, i should send data on my server and the server should return the valid file(image).
Who can help?

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