JSIExample

Educational React Native project demonstrating manual JSI integration with a C++ HostObject.

Requirements

• Node.js >= 20
• pnpm 10+
• Xcode (iOS) / Android Studio (Android)

Getting Started

pnpm install
cd ios && pod install && cd ..
pnpm start

In another terminal:

pnpm ios
# or
pnpm android

JSI Demo

On app launch, JSIExampleInstaller.install() runs automatically and registers global.MathOperationsProxy. Tap All Math Operations to exercise the native JSI bindings from JavaScript.

Security

This project follows npm-security-best-practices:

• pnpm-workspace.yaml: strictDepBuilds, blockExoticSubdeps, minimumReleaseAge, trustPolicy
• .npmrc: ignore-scripts=true, allow-git=none, node-linker=hoisted
• CI uses pnpm install --frozen-lockfile and pnpm audit

Controlled dependency upgrades

Avoid blind upgrades:

# Avoid
pnpm update
npx npm-check-updates -u

# Prefer
npx npm-check-updates --interactive
pnpm audit --fix

CI-like install locally

pnpm install:ci
pnpm audit

Scripts

Script	Description
pnpm start	Start Metro
pnpm ios	Run iOS app
pnpm android	Run Android app
pnpm test	Run Jest tests
pnpm lint	Run ESLint
pnpm install:ci	Deterministic install (frozen lockfile)
pnpm audit	Security audit