Installing Amplify UI in the project

Let's go to the project directory of the React app and add the Amplify UI dependencies to the project if you haven't done so.

For a ReactJS project, run the following command in the terminal:

yarn add aws-amplify @aws-amplify/ui-react

For an Expo or React Native project, run the following command in the terminal:

yarn add aws-amplify aws-amplify-react-native

The next step is to go to the specific project directory and call the amplify add auth command in the terminal in order to set up Amplify UI authentication. We will use an email address as the username in this exercise:

amplify add auth
Using service: Cognito, provided by: awscloudformation
 The current configured provider is Amazon Cognito. 
 Do you want to use the default authentication and security  configuration? Default configuration
 Warning: you will not be able to edit these selections. 
 How do you want users to be able to sign in? Email
 Do you want to configure...