seneca_entity_cache_plugin_initialization_and_load_operations.ts

1import Seneca from 'seneca'
2import EntityCache from '@seneca/entity-cache'
3import Entity from 'seneca-entity'
4
5async function run() {
6  const seneca = Seneca({ legacy: false })
7    .use(Entity)
8    // The entity-cache plugin intercepts entity operations
9    .use(EntityCache, {
10      expires: 3600, // cache expiry in seconds
11      prefix: 'seneca-cache' // optional prefix for keys
12    })
13
14  await seneca.ready()
15
16  // Define an entity for testing
17  const product = seneca.entity('shop/product').make$({
18    id: 'p01',
19    name: 'Apple',
20    price: 1.99
21  })
22
23  // Save the entity
24  await product.save$()
25
26  // The first load fetches from the underlying store and populates the cache
27  const load1 = await seneca.entity('shop/product').load$('p01')
28  console.log('First load:', load1.name)
29
30  // Subsequent loads for the same ID will be retrieved from the cache
31  const load2 = await seneca.entity('shop/product').load$('p01')
32  console.log('Second load (cached):', load2.name)
33}
34
35run().catch(console.error)