Flags SDK now evaluates flags 10x faster

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:

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import { evaluate } from 'flags/next';
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import { flagA, flagB } from '../flags';
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const [valueA, valueB] = await evaluate([flagA, flagB]);

You can also pass an object to evaluate flags with named keys

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import { evaluate } from 'flags/next';
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import { flagA, flagB } from '../flags';
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const { a, b } = await evaluate({ a: flagA, b: flagB });

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.