Flags SDK and Vercel Flags now evaluate multiple feature flags in bulk around 10x faster.
Flag evaluation time improved by reducing microtask queue overhead and creating fewer promises. The improvement scales with the number of flags.
Use await evaluate([flagA, flagB])
instead of Promise.all([flagA(), flagB()])
to benefit from these optimizations:
app/page.tsx
import { evaluate } from 'flags/next';import { flagA, flagB } from '../flags';const [valueA, valueB] = await evaluate([flagA, flagB]);
Evaluate multiple flags in bulk using array destructuring.
You can also pass an object to evaluate flags with named keys
app/page.tsx
import { evaluate } from 'flags/next';import { flagA, flagB } from '../flags';const { a, b } = await evaluate({ a: flagA, b: flagB });
Evaluate multiple flags in bulk using object destructuring.
precompute()
automatically benefits from these improvements as well.
Upgrade flags
and @flags-sdk/vercel
to the latest versions to get started. Learn more in the documentation.