fetch-castle-blueprint-pngs.js

const request = require('request');
const fs = require('fs');

const deckIds = [
  'dDhaN6EmR',
  'GXW_KkKzT',
  'ae5b8c7e-fd3a-4835-b972-fbf0bed2b81c',
  'cbWFJghWo',
  'z3NzziPIo',
];

deckIds.forEach((deckId, deckIndex) => {
  // Ask our graphql API
  const encoded = JSON.stringify({
    query: `
query($deckId: ID!) {
  deck(deckId: $deckId) {
    cards {
      sceneData
    }
  }
}
  `,
    variables: { deckId },
  });
  request.post(
    'https://api.castle.xyz/graphql',
    {
      headers: {
        'Content-Type': 'application/json',
        Accept: 'application/json',
        'Content-Length': encoded.length,
        Connection: 'keep-alive',
      },
      body: encoded,
    },
    (err, res, body) => {
      if (err) {
        console.log(err);
        return;
      }

      // Collect by title (clashes are just clobbered)
      const entries = {};
      const decoded = JSON.parse(res.body);
      decoded.data.deck.cards.forEach((card) => {
        Object.values(card.sceneData.snapshot.library).forEach((entry) => {
          entries[entry.title] = entry;
        });
      });

      // Save '.png's for entries that have image data
      Object.values(entries).forEach((entry) => {
        if (entry.base64Png) {
          const filename = `d${deckIndex}-${entry.title.replace(/\s/g, '-')}.png`;
          fs.writeFile(filename, entry.base64Png, 'base64', (err) => {
            if (err) {
              console.log(err);
            }
          });
        }
      });
    }
  );
});