fix: cacheStores types and usage in README (#4605)

Author: lucalooz

README.md

@@ -191,12 +191,12 @@ console.log('trailers', trailers)
 Undici provides a powerful HTTP caching interceptor that follows HTTP caching best practices. Here's how to use it:
 
 ```js
-import { fetch, Agent, interceptors } from 'undici';
+import { fetch, Agent, interceptors, cacheStores } from 'undici';
 
 // Create a client with cache interceptor
 const client = new Agent().compose(interceptors.cache({
   // Optional: Configure cache store (defaults to MemoryCacheStore)
-  store: new interceptors.cacheStores.MemoryCacheStore({
+  store: new cacheStores.MemoryCacheStore({
     maxSize: 100 * 1024 * 1024, // 100MB
     maxCount: 1000,
     maxEntrySize: 5 * 1024 * 1024 // 5MB

test/types/index.test-d.ts

@@ -11,9 +11,11 @@ import Undici, {
   Request,
   FormData,
   SnapshotAgent,
-  install
+  install,
+  cacheStores
 } from '../..'
 import Dispatcher from '../../types/dispatcher'
+import CacheInterceptor from '../../types/cache-interceptor'
 
 expectAssignable<Pool>(new Undici.Pool('', {}))
 expectAssignable<Client>(new Undici.Client('', {}))
@@ -30,6 +32,10 @@ expectAssignable<Dispatcher.DispatcherComposeInterceptor>(Undici.interceptors.re
 expectAssignable<Dispatcher.DispatcherComposeInterceptor>(Undici.interceptors.retry())
 expectAssignable<Dispatcher.DispatcherComposeInterceptor>(Undici.interceptors.decompress())
 expectAssignable<Dispatcher.DispatcherComposeInterceptor>(Undici.interceptors.cache())
+expectAssignable<CacheInterceptor.CacheStore>(new Undici.cacheStores.MemoryCacheStore())
+expectAssignable<CacheInterceptor.CacheStore>(new Undici.cacheStores.SqliteCacheStore())
+expectAssignable<CacheInterceptor.CacheStore>(new cacheStores.MemoryCacheStore())
+expectAssignable<CacheInterceptor.CacheStore>(new cacheStores.SqliteCacheStore())
 
 const dispatcher = new Dispatcher()
 const handler: Dispatcher.DispatchHandler = {}

types/index.d.ts

@@ -23,6 +23,12 @@ import RetryAgent from './retry-agent'
 import { request, pipeline, stream, connect, upgrade } from './api'
 import interceptors from './interceptors'
 
+import CacheInterceptor from './cache-interceptor'
+declare const cacheStores: {
+  MemoryCacheStore: typeof CacheInterceptor.MemoryCacheStore;
+  SqliteCacheStore: typeof CacheInterceptor.SqliteCacheStore;
+}
+
 export * from './util'
 export * from './cookies'
 export * from './eventsource'
@@ -36,7 +42,7 @@ export { Interceptable } from './mock-interceptor'
 
 declare function globalThisInstall (): void
 
-export { Dispatcher, BalancedPool, Pool, Client, buildConnector, errors, Agent, request, stream, pipeline, connect, upgrade, setGlobalDispatcher, getGlobalDispatcher, setGlobalOrigin, getGlobalOrigin, interceptors, MockClient, MockPool, MockAgent, SnapshotAgent, MockCallHistory, MockCallHistoryLog, mockErrors, ProxyAgent, EnvHttpProxyAgent, RedirectHandler, DecoratorHandler, RetryHandler, RetryAgent, H2CClient, globalThisInstall as install }
+export { Dispatcher, BalancedPool, Pool, Client, buildConnector, errors, Agent, request, stream, pipeline, connect, upgrade, setGlobalDispatcher, getGlobalDispatcher, setGlobalOrigin, getGlobalOrigin, interceptors, cacheStores, MockClient, MockPool, MockAgent, SnapshotAgent, MockCallHistory, MockCallHistoryLog, mockErrors, ProxyAgent, EnvHttpProxyAgent, RedirectHandler, DecoratorHandler, RetryHandler, RetryAgent, H2CClient, globalThisInstall as install }
 export default Undici
 
 declare namespace Undici {