feat: Add a config plugin for Expo 53 with CNG

[Off2Race]

Description

Added an Expo config plugin so that react-native-app-auth can be used in an Expo 53-based project using CNG (Continuous Native Generation).

NOTE: The plugin will detect the current Expo version and should work with versions prior to 53 but that use case is not well-tested. For best results, stick with Expo 53.

Thanks to @aurelian for the original version that led to this.

Steps to verify

STEP 1
Add the plugin to the app's app.config.ts. See example below.

import { ConfigContext, ExpoConfig } from '@expo/config';
import withAppAuth from 'react-native-app-auth/plugin';

require('ts-node/register');

export default ({ config }: ConfigContext): Partial<ExpoConfig> => {
	const existingPlugins = config.plugins ?? [];

	return {
		...config,

		plugins: [
			...existingPlugins,
			[
				withAppAuth,
				{
					ios: {
						urlScheme: 'my-url-scheme-goes-here',
					},
					android: {
						appAuthRedirectScheme: 'my-redirect-scheme-goes-here',
					},
				},
			],
		] as ExpoConfig['plugins'],
	};
};

STEP 2
You'll likely need to add a react-native-app-auth.d.ts to the folder where you keep your Typescript types:

declare module 'react-native-app-auth/plugin' {
	const withAppAuth: any;
	export default withAppAuth;
}

STEP 3
Run npx expo prebuild --clean

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Project	Deployment	Preview	Comments	Updated (UTC)
react-native-app-auth	Ready	Preview	Comment	Aug 22, 2025 3:14pm

[Off2Race]

Hi, @zibs – Not sure what else you want/need with regard to testing and documentation for this. Do you want me to add something to the README which explains how to configure the plugin (similar to the notes above)? Let me know and I'll be happy to do whatever you need.

[zibs]

Thanks so much @Off2Race -- I'll take a look and be sure to let you know!

[zibs]

Thanks @Off2Race -- I've updated the code to use TypeScript and added an example app that supports this flow, as well as added the docs. Feel free to take a look and a double check that it looks okay, and if so, we can look towards merging and releasing!! Really appreciate everything you've done here.

[Off2Race]

Awesome, @zibs! I'll look at it today. I should have realized that you'd want it in Typescript. My bad. Thanks for updating it. Back soon with feedback.

[nojas01]

Can I ask what the status is of this PR? Is this going to get merged? Anyway thanks for the effort both of you!

[Off2Race]

Hi, @nojas01 – The delay is my fault. @zibs is patiently waiting for me to validate the latest changes. Unfortunately, I've been distracted by releases elsewhere. I will try to look at it in the next couple days. Apologies for the delay.

[ThomasTBTech]

Any news on the status of this PR? 😃

[zibs]

I think the best thing at this point would probably be just to merge and triage issues as they come up, albeit I have limited time to look at them atm. I'll try to get this released this month.

[Off2Race]

Hi, @zibs. My apologies. I keep meaning to come back and test this and then something comes up. I agree with your suggestion. Release it when you can and then we can triage issues from there. I know the process works. I have 2 separate apps that use this plugin right now (albeit in another form). If your merged version has a problem, I can help troubleshoot.

[nojas01]

I've implemented the code from this branch locally and can confirm it works. Though my native knowledge is minimal I can help if there's issues.

…

On Tue, 14 Oct 2025, 17:25 Mike Loos, ***@***.***> wrote: *Off2Race* left a comment (FormidableLabs/react-native-app-auth#1086) <#1086 (comment)> Hi, @zibs <https://github.com/zibs>. My apologies. I keep meaning to come back and test this and then something comes up. I agree with your suggestion. Release it when you can and then we can triage issues from there. I know the process works. I have 2 separate apps that use this plugin right now (albeit in another form). If your merged version has a problem, I can help troubleshoot. — Reply to this email directly, view it on GitHub <#1086 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AHDPNKSYFEM2GQPTQUCVHA33XUIXPAVCNFSM6AAAAACEGEKUM6VHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZTIMBSGQYTMNJTGE> . You are receiving this because you were mentioned.Message ID: ***@***.***>

[seanbaergen]

Thanks so much for your work on this @zibs and @Off2Race! Any eta for when this will be merged? Sounds like every one agrees it is good to go.