How do I add all three alias attributes in AWS Cognito while creating AWs amplify add auth?

Question

I am using the AWS Amplify React application. while adding auth in my application users can log in with their mobile number and email, both of them. but I created auth in my application by using **'amplify add auth'** command it asks only to select any one of the attributes below

**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?** Manual configuration**
 Select the authentication/authorization services that you want to use: **User Sign-Up, Sign-In, connected wi
th AWS IAM controls (Enables per-user Storage features for images or other content, Analytics, and more)**   
 Provide a friendly name for your resource that will be used to label this category in the project: **otplogi
n7e50e4547e50e454**
 Enter a name for your identity pool. **otplogin7e50e454_identitypool_7e50e454**
 Allow unauthenticated logins? (Provides scoped down permissions that you can control via AWS IAM)** No**      
 Do you want to enable 3rd party authentication providers in your identity pool? **No**
 Provide a name for your user pool:** otplogin7e50e454_userpool_7e50e454**
 Warning: you will not be able to edit these selections.
 How do you want users to be able to sign in?
  Username
> Email
  Phone Number
  Email or Phone Number
  I want to learn more.

But in aws cognito UI level I can select all three of them for reference,

![Enter image description here](/media/postImages/original/IMMZQyXj9pQQOiXWX5fG3CNA)

Now I want to use all three of them, how can I use that amplify cognito add auth command? or any other way to achieve that?

Accepted Answer

Hi,

To add all three attributes `email`, `phone_number`, `preferred_username` as sign in options while adding auth category using Amplify CLI, you would have to add all three under aliasAttributes in `cli-inputs.json` and remove `usernameAttributes` and `autoVerifiedAttributes` keys. Steps for the same are mentioned below.

1. Select `Email or Phone Number` as the sign in option while adding auth.
2. Under `amplify/backend/auth//cli-inputs.json`, make the following changes.
   
   a. "aliasAttributes": ["email", "phone_number", "preferred_username"],

b. Remove `usernameAttributes` and `autoVerifiedAttributes`

3. Execute "amplify push".

Reference :- https://github.com/aws-amplify/amplify-cli/issues/1546

How do I add all three alias attributes in AWS Cognito while creating AWs amplify add auth?

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