react-native-rust-module

react-native-rust-module

Boilerplate to create react native modules relying on rust

Instructions

In the Example is a react native project that is configured to automatically consume a react-native-rust module that provides a helloWorld method which will call rust a rust library in both android and ios.

The rust library can be found in the rust/signer/src/lib.rs file

Requirements

Node - tested on 16 Android Toolchain (Android Studio) iOs Toolchain (xCode) Rust Toolchain - Cargo, rustup... (https://rustup.rs/ to get started)

Install Node Modules

• yarn or npm i
• cd example

iOs

To Perform changes and run those in ios follow these steps

• yarn or npm i
• cd /ios
• pod install

Change Rust

• modify lib.rs (if you add extra methods you also have to edit the signer.h file)
• cd rust/signer and make ios - this will create a new file libsigner.a in the rust/signer directory
• replace the old libsigner.a in ios/libs with the generated file
• Run the app (in xcode or with npm run ios)

Android

To Perform changes and run those in ios follow these steps

Change Rust

• modify lib.rs (if you add extra methods you also have to edit the signer.h file)
• cd rust/signer and make android - this will create a new file libsigner.a in the rust/signer directory
• make android will also have started the script copy_android which should have copied the rust compilation results into the java project.

(If the make android command throws an error that is complaining about missing -lgcc look at this issue ) 4. Run the app (in Android studio or with npm run android)

Kudos

Heavily inspired by

https://github.com/paritytech/parity-signer/tree/legacy-4.5.3 https://robertohuertas.com/2019/10/27/rust-for-android-ios-flutter/