normalize.js

/* 
 https://rickandmortyapi.com/graphql

 I'm trying various queries, but they all seem to be working. Here's an example:

*/

function normalizeResult(result) {
  const rootQueryObject = {};
  const denestedObjects = [];

  for (key in result) {
    rootQueryObject[key] = `loql__${key}`;
    recurse({ data: result[key], parentKey: key });
  }

  function recurse({ data, parentKey }) {
    const result = {};
    for (key in data) {
      const value = data[key];
      if (Array.isArray(value)) {
        let childKey = parentKey + '_' + key;
        result[key] = value.map((subArrayVal) => {
          if (typeof subArrayVal === 'object' && subArrayVal !== null) {
            const uniqueKey = childKey + '_' + subArrayVal.id;
            return recurse({ data: subArrayVal, parentKey: uniqueKey });
          }
          return subArrayVal;
        });
      } else if (typeof value === 'object' && value !== null) {
        let childKey = parentKey + '_' + key;
        result[key] = recurse({ data: value, parentKey: childKey });
      } else {
        result[key] = value;
      }
    }

    // This is to check if the top-level value is an array or not.
    if (rootQueryObject[parentKey]) {
      denestedObjects.push({ [parentKey]: Object.values(result) });
    } else {
      denestedObjects.push({ [parentKey]: result });
    }
    return 'loql__' + parentKey;
  }

  return { rootQueryObject, denestedObjects };
}

// const data1 = {
//   data: {
//     locationsByIds: [
//       {
//         name: 'Earth (Unknown dimension)',
//         id: '30',
//         residents: [
//           {
//             name: 'Diane Sanchez',
//             id: '94',
//             episode: [
//               {
//                 id: '22',
//                 name: 'The Rickshank Rickdemption',
//                 air_date: 'April 1, 2017',
//               },
//             ],
//           },
//         ],
//       },
//       {
//         name: 'Gazorpazorp',
//         id: '40',
//         residents: [
//           {
//             name: 'Jackie',
//             id: '168',
//             episode: [
//               {
//                 id: '7',
//                 name: 'Raising Gazorpazorp',
//                 air_date: 'March 10, 2014',
//               },
//             ],
//           },
//           {
//             name: 'Ma-Sha',
//             id: '211',
//             episode: [
//               {
//                 id: '7',
//                 name: 'Raising Gazorpazorp',
//                 air_date: 'March 10, 2014',
//               },
//             ],
//           },
//           {
//             name: 'Veronica Ann Bennet',
//             id: '376',
//             episode: [
//               {
//                 id: '7',
//                 name: 'Raising Gazorpazorp',
//                 air_date: 'March 10, 2014',
//               },
//             ],
//           },
//         ],
//       },
//     ],
//   },
// };

// const data2 = {
//   data: {
//     locationsByIds: [
//       {
//         name: 'Earth (Unknown dimension)',
//         id: '30',
//       },
//       {
//         name: 'Gazorpazorp',
//         id: '40',
//       },
//     ],
//     characters: {
//       info: {
//         count: 671,
//       },
//     },
//   },
// };

// const { rootQueryObject, denestedObjects } = normalizeResult(data1.data);
// console.log('ROOT QUERY: ', rootQueryObject);
// denestedObjects.forEach((o) => console.log(o));

// const { rootQueryObject, denestedObjects } = normalizeResult(data2.data);
// console.log('ROOT QUERY: ', rootQueryObject);
// denestedObjects.forEach((o) => console.log(o));