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Nitro Modules are highly efficient native modules with a statically compiled binding layer to JSI, and typesafe JS bindings.It consists of two parts:

• react-native-nitro-modules: The core C++ library powering all nitro modules
• nitrogen: A code-generator for nitro module library authors

Declaration (TypeScript):

exportinterfaceMathextendsHybridObject{add(a:number,b:number):number}

Implementation (C++, Swift or Kotlin):

classHybridMath:publicHybridMathSpec {public:doubleadd(double a,double b)override {return a + b;  }}

Usage (TypeScript):

constmath=NitroModules.createHybridObject<Math>('Math')constresult=math.add(5,3)

Installreact-native-nitro-modules from npm:

npm i react-native-nitro-modulescd ios&& pod install

• Nitro docs 📚
• Community Discord 💬
• nitrogen/README.md
• react-native-nitro-modules/README.md
• react-native-nitro-image example module
• TestObject.nitro.ts example playground

Cross-platform native modules can be built with C++.Any custom C++ types can be used and bridged to JS with minimal overhead.

JS <-> C++ type converters are statically generated ahead of time - no more dynamic lookups or runtime parser errors! 🥳

iOS native modules and view components can be written either in pure C++, or pure Swift.Thanks to Swift 5.9, Swift Nitro Modulesbridge directly to C++ instead of going through Objective-C message sends. Woohoo, no more Objective-C, andzero overhead C++ -> Swift calls! 🥳

Android native modules and view components can be written either in pure C++, or pure Kotlin/Java.Thanks to fbjni, even complex types can be effortlessly bridged to Kotlin/Java with minimal overhead! 🔥

Nitro is built with ❤️ by Margelo.We build fast and beautiful apps. Contact us atmargelo.com for consultancy services.

See thecontributing guide to learn how to contribute to the repository and the development workflow.

MIT