mobile-app

React Native WebView wrapper for app.shapeshift.com

Native Environment Setup

To setup your local environment follow the react-native environment setup and selecting "React Native CLI Quickstart"

For M1 users

It is simpler to install CocoaPods via brew rather than using Ruby.

`brew install cocoapods`

Local build and development

Tooling Requirements

1. node v16+
2. yarn v3
3. Android Studio / Xcode

Yarn

To install yarn v3, run

corepack enable
corepack prepare yarn@3 --activate

run yarn to install dependencies

Debugging the webview

To debug the webview:

• Run metro and the build for iOS / Android (see iOS and Android sections below)
• Run chrome://inspect/#devices and click "Inspect" on the remote target

iOS

Tested with Xcode 13.4 on macOS 12.5. You will also need CocoaPods installed

1. Copy .env file

cp .env.template .env

2. Start Metro

yarn start
# add --reset-cache to wipe metro cache (required for .env changes)

3. Start the app

cd ios
pod install
yarn ios
# add --device 'iPhone' (replacing iPhone with your device name) to run on device. add --simulator 'iPhone 14' to specify iPhone 14 simulator. xcode also has these capabilities

Publishing builds on ios

Currently we are manually building an archive in xCode to distribute the app.

1. Open xCode and open the ios/ folder. You must open the folder and not the project files. If you dont see 2 projects in the file explorer (shapeshift and Pods) you haven't opened the directly correctly
2. Ensure you are signed in to your developer account that has access to the Shapeshift Apple Store account (Xcode -> preferences -> Accounts)
3. Select any iOS device as the target
4. Select Product > Archive to create the app archive.
5. If your archive builds correctly it will walk you through pushing this to the app store from there.

Running on device with local web

1. Run web on your local machine as usual

2. install ngrok

brew install ngrok

1. Create a free account here https://ngrok.com/ and obtain your auth token
2. Configure ngrok with your token

ngrok config add-authtoken YOUR_TOKEN

3. run ngrok, note the public Forwarding domain listed

ngrok http 3000 # substitute port if necessary

4. Modify .env to point the WebView at the ngrok endpoint created above

SHAPESHIFT_URI=https://523d-135-134-162-133.ngrok.io # example ngrok domain

5. Run the app on your device from Xcode or use the yarn script:

yarn ios:device

for now, the above runs node_modules/.bin/react-native run-ios --device 'iPhone' - substitute the name of your device for iPhone

Notes

• you may need to kill and reload the app after it's been completely loaded to get it to source content from metro
• you may need to remove the line messageManager.webviewRef?.reload() in the useKeepAliveHook if the device has trouble downloading bundle.js before getting whacked.
• you will need to manually add your ngrok domain to the navigationFilter to prevent opening in a browser. dev flag/mode?
• as of 10/6: in your local web, move the entire contents of react-app-rewired/headers/csps out of their normal place and full restart web (yarn dev)

Android

Requires Android Studio. Follow the React Native Android setup instructions first.

Note: by default the android virtual device configured in Android Studio is under resourced. Increasing the RAM and Internal Storage may be required to succesffully run the app.

If you see an error like the following, please attempt to increase the resources on the virtual device

error Failed to install the app. Make sure you have the Android development environment set up: https://reactnative.dev/docs/environment-setup. Error: Command failed: ./gradlew app:installDebug -PreactNativeDevServerPort=8081 Unable to install .../mobile-app/android/app/build/outputs/apk/debug/app-debug.apk com.android.ddmlib.InstallException: Unknown failure: Exception occurred while executing 'install': android.os.ParcelableException: java.io.IOException: Requested internal only, but not enough space

To start the app:

yarn android

Publishing builds on Android

You will need to obtain signing artifacts from someone in order to push builds.

1. Once you have successfully set up android studio per the documentation above you can proceed. Make sure you have opened the ./android folder as the root.
2. In android studio, select Build -> Generate Signed Bundle / APK
3. Select Android App Bundle and select the keystore you have obtained
4. Select a release build and click Finish.