Page updated Nov 15, 2023

Preview: AWS Amplify's new code-first DX (Gen 2)

The next generation of Amplify's backend building experience with a TypeScript-first DX.

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Add authentication

The next feature you will be adding is authentication.

Authentication with Amplify

Amplify uses Amazon Cognito as its authentication provider. Amazon Cognito is a robust user directory service that handles user registration, authentication, account recovery & other operations. In this tutorial, you'll learn how to add authentication to your application using Amazon Cognito and username/password login.

Create authentication service

To add authentication to your app, run this command:

amplify add auth
1amplify add auth

Select the defaults for the following prompts:

? 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? Username ? Do you want to configure advanced settings? No, I am done.
1? Do you want to use the default authentication and security configuration? Default configuration
2Warning: you will not be able to edit these selections.
3? How do you want users to be able to sign in? Username
4? Do you want to configure advanced settings? No, I am done.

To deploy the service, run the push command:

amplify push
1amplify push

Now, the authentication service has been deployed and you can start using it. To view the deployed services in your project at any time, go to Amplify Console by running the following command:

amplify console
1amplify console

Create login UI

Now that you have your authentication service deployed to AWS, it's time to add authentication to your Angular app. Creating a login flow can be quite difficult and time consuming to get right. Luckily, Amplify UI has an Authenticator component that provides an entire authentication flow for you, using the configuration you specified in amplifyconfiguration.json.

Install Amplify UI

The @aws-amplify/ui-vue package includes Vue specific UI components you'll use to build your app. Install it with the following command:

npm install @aws-amplify/ui-vue
1npm install @aws-amplify/ui-vue

Add the Amplify UI Authenticator component

Open src/App.vue and make the following changes.

Within the App.vue, add the authenticator component:

<script setup> import { Authenticator } from '@aws-amplify/ui-vue'; import '@aws-amplify/ui-vue/styles.css'; // ... other code below </script> <template> <authenticator> <template v-slot="{ user, signOut }"> <h1>Hello {{ user.username }}!</h1> <button @click="signOut">Sign Out</button> <!-- Other content from before--> </template> </authenticator> </template>
1<script setup>
2 import { Authenticator } from '@aws-amplify/ui-vue';
3 import '@aws-amplify/ui-vue/styles.css';
4 // ... other code below
5</script>
6<template>
7 <authenticator>
8 <template v-slot="{ user, signOut }">
9 <h1>Hello {{ user.username }}!</h1>
10 <button @click="signOut">Sign Out</button>
11 <!-- Other content from before-->
12 </template>
13 </authenticator>
14</template>

Using Amplify UI connected components makes it easier to manage styling across your entire app.