NestJS

UseInterceptors(FileInterceptor('companyLogo', {
	storage: diskStorage({
		destination: (req, file, cb) => {
			cb(null, './uploads/companies');
		},
		filename: (req, file, cb) => {
			cb(null, `${file.originalname}`)
			}
			}),
			fileFilter: (req, file, cb) => {
			let ext = extname(file.originalname);
			if(ext !== '.png' && ext !== '.jpg' && ext !== '.gif' && ext !== '.jpeg') {
			return cb(new HttpException('Only images are allowed!',HttpStatus.BAD_REQUEST), null);
		}
		cb(null, true);
	},
	limits: {fileSize: 1024*1024}
}))