homework/HW16/main.js

const getGQL = function (url) {
    return async function (query, variables) {
        await fetch(url, {
            method: 'POST',
            headers: {
                'Content-Type': 'application/json',
                ...(localStorage.authToken ? {'Authorization': 'Bearer ' + localStorage.authToken} :
                    {})
            },
            body: JSON.stringify({query, variables})

        })
            .then(response => response.json())
            .then((data) => {
            if (data.errors && !data.data) {
                throw new Error(JSON.stringify(data.errors));
            }
            console.log(data.data[Object.keys(data.data)[0]]);
            return data.data[Object.keys(data.data)[0]];
        });
    };
};

const gql = getGQL(`http://shop-roles.asmer.fs.a-level.com.ua/graphql`);

const catById = (_id) => {
    return gql(`query catById($q: String){
        CategoryFindOne(query: $q){
            _id name goods {
                _id name price images {
                    url
                }
            }
        }
    }`, {q: JSON.stringify([{_id}])});
};

const getInfoAboutProduct = (_id) => {
    return gql(`query HzSho{
        GoodFind(query:"[{}]"){
            _id price description
            categories{
                goods{
                    name
                }
            }
        }
    }`, {q: JSON.stringify([{_id}])});
};

const goodFindOne = (_id) => {
    return gql(`
    query findTwo{
        GoodFindOne(query: "[{}]"){
              _id price name
  }
}`, {q: JSON.stringify([{_id}])});
};

const categoryFind = (_id) => {
    return gql(`
    query catFind{
  CategoryFind(query: "[{}]"){
    _id name image{
      text url 
    }
  }
}`, {q: JSON.stringify([{_id}])});
};

const getLogin = (login, password) => {
    return gql(` query NameForMe1($login:String, $password:String){
        login(login:$login, password:$password)
    }`, {login: login, password: password}
    );
};

(async () => {
    await catById()
    await getLogin('lesha', '1305');
    await getLogin('кто', 'то');
    await goodFindOne();
    await getInfoAboutProduct();
    await categoryFind();
})();