Introduction to "Creating a React Native Login" course

Introduction

How to Create a React Native App Project With Expo

How to Format React Code Style with ESLint and Prettier

How to Add Material Design to React Native With Paper

Add React Native and Expo App Navigation with react-navigation

How to Create a Stack Navigator With react-navigation

How to Transition Between Screens in React Native Navigation

Navigation

How to Add the First Screen to a React Native App

How to Create a React Native Login Screen

Creating register & reset password screens

Create a React Native Password Reset and Registration Form

Basic Screens

How to Add Firebase to a React Native App

Add Authorization Methods to a React Native App

How to Add a React Native Splash Screen

How to Add Google Sign In to a React Native App

Authorization

Add Bottom Nagivation to React Native With bottom-tabs

Add Drawer Navigation to a React Native App

Advanced Screens

This course will teach you how to create from scratch a simple login application using React Native.

You will get a step-by-step demonstration of solving some of the most common problems we encounter when building an application, including:

* project setup
* screen navigation
* user authorization
* state management

This course is perfect for beginners in mobile applications programming, and those who want to improve their React Native skills.

I came up with the idea for this course because React Native is the most popular cross-platform framework (according to JetBrains’ The State of Developer Ecosystem 2020, 42% of developers use it for their mobile apps). The popularity comes from the fact that developers still write with React code, but it’s shared across iOS and Android.

This course contains all the knowledge you need to create production-ready applications that can be released to the App Store and Google Play. I'll be introducing many tools that are commonly used when it comes to React Native applications, and that knowledge may come in handy in other projects as well.

This is how final product of this course looks like:

![start](https://raw.githubusercontent.com/venits/react-native-market/master/assets/newline-app-template/start.png)
![login](https://raw.githubusercontent.com/venits/react-native-market/master/assets/newline-app-template/login.png)
![register](https://raw.githubusercontent.com/venits/react-native-market/master/assets/newline-app-template/register.png)
![forgot](https://raw.githubusercontent.com/venits/react-native-market/master/assets/newline-app-template/forgot-password.png)
![home](https://raw.githubusercontent.com/venits/react-native-market/master/assets/newline-app-template/home.png)
![drawer](https://raw.githubusercontent.com/venits/react-native-market/master/assets/newline-app-template/drawer.png)
![profile](https://raw.githubusercontent.com/venits/react-native-market/master/assets/newline-app-template/profile.png)

I hope to see you in the course!

_Happy Coding 🚀_

In this course we are going to create from scratch a simple login application using React Native.

Creating a React Native Login

Importance of setting up development environment.

How to use design system (react-native-paper).

How to implement authorization with Firebase.

How to add bottom navigation and drawer menu.

In this lesson we are going to implement basic authorization methods in our application. Those methods are:

We are going to keep all our authorization methods in the 

 method. We are going to implement it in 

. We already have the inputs so all we need to do is create a function that takes the data and creates a new account in Firebase. We can find information about the 

Before we can implement it, we go back to our project in the 

 provider. It will allow users to create accounts with their email and password.

 file. We could copy the code provided in the documentation but it's not the best syntax for modern JavaScript. We can improve it with 

export async function signUpUser({ name, email, password }) {
  try {
    const { user } = await firebase
      .auth()
      .createUserWithEmailAndPassword(email, password);
    await firebase.auth().currentUser.updateProfile({
      displayName: name,
    });
    return { user };
  } catch (error) {
    return {
      error: error.message,
    };
  }
}

 which is responsible for providing authorization methods.

---
title: Add Authorization Methods to a React Native App
description: Adding authorization methods
privateVideoUrl: https://fullstack.wistia.com/medias/aovf3gj1ac
---

# Adding authorization methods

In this lesson we are going to implement basic authorization methods in our application. Those methods are:

-   Login
-   Sign up
-   Reset password

We are going to keep all our authorization methods in the `auth-api.js` file inside the `api` folder.

### Sign up

Let's start with the `Sign up` method. We are going to implement it in `RegisterScreen`. We already have the inputs so all we need to do is create a function that takes the data and creates a new account in Firebase. We can find information about the `register` method in the [Firebase documentation](https://firebase.google.com/docs/auth/web/password-auth#create_a_password-based_account).

Before we can implement it, we go back to our project in the [Firebase console](https://console.firebase.google.com/). Select the `Authorization` page and then head to the `Sign-in method` tab. Here we enable `Email/Password` provider. It will allow users to create accounts with their email and password.

Once this is done, let's create a `signUpUser` method inside `auth-api.js` file. We could copy the code provided in the documentation but it's not the best syntax for modern JavaScript. We can improve it with `async/await`. Our final function looks like this:

```js
export async function signUpUser({ name, email, password }) {
  try {
    const { user } = await firebase
      .auth()
      .createUserWithEmailAndPassword(email, password);
    await firebase.auth().currentUser.updateProfile({
      displayName: name,
    });
    return { user };
  } catch (error) {
    return {
      error: error.message,
    };
  }
}
```