AngeloooooandDraculabo
8ed4593f73
* Refactor Gemini model display: filter old versions, group low/high pro, and improve naming * Fix potential negative minutes and refine Gemini 3 Pro grouping logic based on PR feedback * The account change process has been sped up * Address PR review: enhance error message and parameterize polling interval in process handler * Address PR review: fix potential race condition in database backup logic * fix: prevent renderer white screen and harden sentry gating * feat: localize model labels * chore: enable hoisted node-linker * chore: ignore .agent/.claude/.codex in prettier --------- Co-authored-by: Draculabo <[email protected]>
57 lines
1.1 KiB
Markdown
57 lines
1.1 KiB
Markdown
---
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title: Use SWR for Automatic Deduplication
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impact: MEDIUM-HIGH
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impactDescription: automatic deduplication
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tags: client, swr, deduplication, data-fetching
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---
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## Use SWR for Automatic Deduplication
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SWR enables request deduplication, caching, and revalidation across component instances.
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**Incorrect (no deduplication, each instance fetches):**
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```tsx
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function UserList() {
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const [users, setUsers] = useState([]);
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useEffect(() => {
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fetch('/api/users')
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.then((r) => r.json())
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.then(setUsers);
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}, []);
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}
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```
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**Correct (multiple instances share one request):**
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```tsx
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import useSWR from 'swr';
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function UserList() {
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const { data: users } = useSWR('/api/users', fetcher);
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}
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```
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**For immutable data:**
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```tsx
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import { useImmutableSWR } from '@/lib/swr';
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function StaticContent() {
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const { data } = useImmutableSWR('/api/config', fetcher);
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}
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```
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**For mutations:**
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```tsx
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import { useSWRMutation } from 'swr/mutation';
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function UpdateButton() {
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const { trigger } = useSWRMutation('/api/user', updateUser);
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return <button onClick={() => trigger()}>Update</button>;
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}
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```
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Reference: [https://swr.vercel.app](https://swr.vercel.app)
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