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]>
36 lines
1.1 KiB
Markdown
36 lines
1.1 KiB
Markdown
---
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title: Prevent Waterfall Chains in API Routes
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impact: CRITICAL
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impactDescription: 2-10× improvement
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tags: api-routes, server-actions, waterfalls, parallelization
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---
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## Prevent Waterfall Chains in API Routes
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In API routes and Server Actions, start independent operations immediately, even if you don't await them yet.
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**Incorrect (config waits for auth, data waits for both):**
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```typescript
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export async function GET(request: Request) {
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const session = await auth();
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const config = await fetchConfig();
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const data = await fetchData(session.user.id);
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return Response.json({ data, config });
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}
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```
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**Correct (auth and config start immediately):**
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```typescript
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export async function GET(request: Request) {
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const sessionPromise = auth();
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const configPromise = fetchConfig();
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const session = await sessionPromise;
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const [config, data] = await Promise.all([configPromise, fetchData(session.user.id)]);
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return Response.json({ data, config });
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}
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```
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For operations with more complex dependency chains, use `better-all` to automatically maximize parallelism (see Dependency-Based Parallelization).
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