CasperHolders Mobile

The native mobile wallet for the Casper Network.

Use your Ledger device to transfer or manage your staking operations on mobile !

Features :

• Testnet / Mainnet network support

• Ledger device support (Bluetooth)

• Balance & staking overview

• Transfer funds

• Stake / unstake funds

• History

Android : https://play.google.com/store/apps/details?id=com.casperholders.wallet
iOS : https://apps.apple.com/us/app/casper-holders/id1609981086

User demo

https://www.youtube.com/watch?v=EPzYFJrPqzM

How to build

Pre-requisites

Expo installation documentation

• Node LTS release
• Git
• Watchman (see the installation documentation )
• Java SDK 11
• Android / iOs simulator
• Expo / eas cli

yarn global add expo-cli eas-cli

Local dev

First build or modifications to the native files

Casper Holders is created with expo and use the managed workflow. However we use some native libraries so you can't use the expo go app and you must compile the application for Android or iOS ( require a Mac).

For android

yarn install
expo prebuild -p android
yarn android

For iOS

yarn install
expo prebuild -p ios
yarn ios

Next builds

yarn start

Make sure to have the android simulator opened before using the yarn android command.
The expo dev client might crash on the first opening of the application.
Just open the application drawer and re-open the application.
This bug isn't present in the production build.

Local tests

!! Important !!

In order to run correctly the tests locally create a file name .env.local with the following content :

TEST_LOCAL_SIGNER_KEY="<TestnetPrivateKeyWithoutPem>"

This env variable will enable you to test all users interactions (Transfer / Stake / Unstake) without ledger and will add a button "Connect with test key" on the login screen.

If the application is slow / stuck on the simulator that's because of a bug from an HTTP interceptor lib.

This bug isn't present in the production build or on real devices.

To remediate this you can add this env variable to disable the source event listener :

APP_DISABLE_EVENT_SOURCES=true

Run tests

yarn install
yarn test