Cache Modify Example

cachemodify_example.ts

update: cache => {
  cache.modify('ROOT_QUERY', {
    categories(categories: Reference[], { readField }) {
      return categories.filter(
        category => id !== readField('id', category),
      );
    },
  });

  // evict this item from the in memory cache
  // note: this will not broadcast changes to cached queries on it's own.
  cache.evict(`Category:${id}`);
},