This document, as JSON

const url = 'https://api.scanfood.co/ext/v1/openapi.json';
const options = {method: 'GET'};

try {
  const response = await fetch(url, options);
  const data = await response.json();
  console.log(data);
} catch (error) {
  console.error(error);
}

curl --request GET \
  --url https://api.scanfood.co/ext/v1/openapi.json