@thiendangit1102/rn-typescript-graphql/template/src/scripts/generatePossibleTypes.js

React Native TypeScript Apollo Graphql Boilerplate

/* eslint-disable @typescript-eslint/no-var-requires */
const fetch = require('cross-fetch');
const fs = require('fs');

fetch('https://master-7rqtwti-mfwmkrjfqvbjk.us-4.magentosite.cloud/graphql', {
  method: 'POST',
  headers: {'Content-Type': 'application/json'},
  body: JSON.stringify({
    variables: {},
    query: `
      {
        __schema {
          types {
            kind
            name
            possibleTypes {
              name
            }
          }
        }
      }
    `,
  }),
})
  .then((result) => result.json())
  .then((result) => {
    const possibleTypes = {};

    result.data.__schema.types.forEach((supertype) => {
      if (supertype.possibleTypes) {
        possibleTypes[supertype.name] = supertype.possibleTypes.map(
          (subtype) => subtype.name,
        );
      }
    });

    fs.writeFile(
      './src/lib/apollo/data/possibleTypes.json',
      JSON.stringify(possibleTypes),
      (err) => {
        if (err) {
          console.error('Error writing possibleTypes.json', err);
        } else {
          console.log('Fragment types successfully extracted!');
        }
      },
    );
  });