const { TaggableCache: Redis } = require('cache-tags');

// Initialize the Redis client as you would using ioredis.
const redis = new Redis('127.0.0.1:6379');
// Now you can use `redis` as you would with ioredis, or you can enter tagged
// mode.
Promise.resolve()
  // Use .tags to enter tagged mode, then call set or get.
  .then(() =>
    Promise.all([
      redis.tags(['first-tag']).set('cache-entry-1', 'Lorem', 1234),
      redis.tags(['first-tag', 'boring']).set('cache-entry-2', 'Ipsum', 2324),
    ])
  )
  .then(() =>
    Promise.all([
      // You can scope gets by enterign tagged mode.
      redis.tags(['first-tag']).get('cache-entry-1'),
      // Or you can get the item as you would do normally.
      redis.get('cache-entry-2'),
    ])
  )
  .then(console.log) // ['Lorem', 'Ipsum'].
  // You can also use tags to list items.
  .then(() => redis.tags(['first-tag']).list())
  .then(console.log) // ['Lorem', 'Ipsum'].
  .then(() => redis.tags(['boring']).list())
  .then(console.log) // ['Ipsum'].
  // You can also use tags to invalidate items.
  .then(() => redis.tags(['first-tag']).list())
  .then(() =>
    Promise.all([
      redis.tags(['first-tag']).get('cache-entry-1'),
      redis.get('cache-entry-2'),
    ])
  )
  .then(console.log); // []. Cache entries with tag 'first-tag' are gone.