Saving images in MYSQL database user's column by Nestjs

Question

** I want to store the user's images in my MySQL database this is my code **

UsersController

  @Post("file-upload")
  @UseInterceptors(
    FileInterceptor("picture", {
      storage: diskStorage({
        destination: Helper.destinationPath,
        filename: Helper.customFileName
      })
    })
  )
  uploadfile(id: string, updateUserDto: UpdateUserDto) {
      return this.usersService.save( id, updateUserDto.picture);
  }

UsersService

async save(id: string, updateUserDto: string): Promise<any> {
    try {
      await this.repository.save(id, updateUserDto);
    } catch {enter code here
      throw new InternalServerErrorException();
    }
    return {
      message: "User Updated Successfully",
      statusCode: HttpStatus.OK
    };
  }