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Showing content from https://github.com/DZakh/rescript-schema below:

DZakh/sury: 🧬 The fastest schema with next-gen DX

Sury (aka ReScript Schema) 🧬

The fastest schema with next-gen DX.

Highlights:

Works with plain JavaScript, TypeScript, and ReScript. You don't need to use any compiler.
The fastest parsing and validation library in the entire JavaScript ecosystem (benchmark)
Small JS footprint & tree-shakable API (Comparison with Zod and Valibot)
Implements the Standard Schema spec
Built-in JSON Schema support
Detailed and easy to understand error messages
Declarative transformations with automatic serialization
Immutable API with 100+ different operations
Flexible global config
Opt-in ReScript codegen from type definitions (ppx)

Also, you can use Sury as a building block for your own tools or use existing ones:

tRPC, TanStack Form, TanStack Router, Hono and 19+ more using Standard Schema spec
Anything that supports JSON Schema with S.toJSONSchema
rescript-rest - RPC-like client, contract, and server implementation for a pure REST API
rescript-envsafe - Makes sure you don't accidentally deploy apps with missing or invalid environment variables
rescript-stripe - Describe and manage Stripe billing in a declarative way with code
Internal form library at Carla

⚠️ Be aware that Sury uses new Function for parsing. The approach is battle tested and has no known security issues. It's also used by TypeBox, Zod@4 and ArkType. Even Cloudflare Workers recently added support for it.

Welcome Sury - The fastest schema with next-gen DX (Dev.to)
ReScript Schema unique features (Dev.to)
Building and consuming REST API in ReScript with rescript-rest and Fastify (YouTube)

Instead of relying on a few large functions with many methods, Sury follows Valibot's approach, where API design and source code is based on many small and independent functions, each with just a single task. This modular design has several advantages.

For example, this allows a bundler to use the import statements to remove code that is not needed. This way, only the code that is actually used gets into your production build. This can reduce the bundle size by up to 2 times compared to Zod.

Besides the individual bundle size, the overall size of the library is also significantly smaller.

At the same time Sury is the fastest composable validation library in the entire JavaScript ecosystem. This is achieved because of the JIT approach when an ultra optimized validator is created using new Function.

Sury@10.0.0-rc.0 Zod@4.0.0-beta TypeBox@0.34.33 Valibot@1.0.0 ArkType@2.1.20 Total size (min + gzip) 14.1 kB 25.9 kB 31.4 kB 12.6 kB 45.9 kB Benchmark size (min + gzip) 4.27 kB 13.5 kB 22.8 kB 1.23 kB 45.8 kB Parse with the same schema 94,828 ops/ms 8,437 ops/ms 99,640 ops/ms (No transforms) 1,721 ops/ms 67,552 ops/ms Create schema & parse once 166 ops/ms 6 ops/ms 111 ops/ms (No transforms) 287 ops/ms 11 ops/ms JSON Schema S.toJSONSchema z.toJSONSchema 👑 @valibot/to-json-schema T.toJsonSchema Standard Schema ✅ ✅ ❌ ✅ ✅ Eval-free ❌ ⭕ opt-out ⭕ opt-in ✅ ⭕ opt-out Codegen-free (Doesn't need compiler) ✅ ✅ ✅ ✅ ✅ Infered TS Type S.Schema<{foo: string}, {foo: string}> z.ZodObject<{foo: z.ZodString}, {}> TObject<{foo: TString}> v.ObjectSchema<{readonly foo: v.StringSchema<undefined>}, undefined> Type<{foo: string}, {}> Ecosystem ⭐️⭐️ ⭐️⭐️⭐️⭐️⭐️ ⭐️⭐️⭐️⭐️⭐️ ⭐️⭐️⭐️ ⭐️⭐️

If you're enjoying Sury and want to give back, that would be rad!

Your sponsorship doesn't go towards anything specific – it's simply a wonderful way to say "thank you" and make me happy. 😁

Donate with USDT:

ERC20: 0x509fCF7C24A94a776eb92B56B9DA4aA145615529
TRC20: TFg5hKgkdcrFnPHNgYqfbp9yMyx25uaWrF

DM me on X/Twitter if you want to be featured or just to say hi! This would mean so much to me. ✨

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