react-native-login | example React Native project for client login authentication | Authentication library

I wanted to test a tutorial that I found here: https://aboutreact.com/react-native-login-and-signup/ I found it interesting to use it for my application. I wanted to adapt the code to my API etc. It seemed to me to have done everything correctly but I made mistakes, and I would have liked to have had your help to see them, understand them and correct them ...

Example with the Login file

import React, { useState } from 'react';

I'm developing an app for ios and android in react native and need to use keycloak for authorization, but struggling to find a good way.

I've tried react-native-app-auth and it works good to sign in but not to sign out. Not so strange because react-native-app-auth states that: "Keycloak does not specify a revocation endpoint so revoke functionality doesn't work."

I've had a look at a few other npm packages such as react-native-login-keycloak but they seem to lack maintenance and opens a lot of browser tabs.

Any ideas of how to solve this or maybe do a work-around for react-native-app-auth? Thank you for your help!

As I'm new to react-native, I'm just trying to build a simple app in react-native that can navigate.

index.js