AWS Tools for Windows PowerShell
Command Reference

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Synopsis

Calls the Amazon Cognito Identity Provider AdminInitiateAuth API operation.

Syntax

Start-CGIPAuthAdmin
-ClientId <String>
-AnalyticsMetadata_AnalyticsEndpointId <String>
-AuthFlow <AuthFlowType>
-AuthParameter <Hashtable>
-ClientMetadata <Hashtable>
-ContextData_EncodedData <String>
-ContextData_HttpHeader <HttpHeader[]>
-ContextData_IpAddress <String>
-ContextData_ServerName <String>
-ContextData_ServerPath <String>
-Session <String>
-UserPoolId <String>
-Select <String>
-PassThru <SwitchParameter>
-Force <SwitchParameter>
-ClientConfig <AmazonCognitoIdentityProviderConfig>

Description

Starts sign-in for applications with a server-side component, for example a traditional web application. This operation specifies the authentication flow that you'd like to begin. The authentication flow that you specify must be supported in your app client configuration. For more information about authentication flows, see Authentication flows. This action might generate an SMS text message. Starting June 1, 2021, US telecom carriers require you to register an origination phone number before you can send SMS messages to US phone numbers. If you use SMS text messages in Amazon Cognito, you must register a phone number with Amazon Pinpoint. Amazon Cognito uses the registered number automatically. Otherwise, Amazon Cognito users who must receive SMS messages might not be able to sign up, activate their accounts, or sign in. If you have never used SMS text messages with Amazon Cognito or any other Amazon Web Services service, Amazon Simple Notification Service might place your account in the SMS sandbox. In sandbox mode, you can send messages only to verified phone numbers. After you test your app while in the sandbox environment, you can move out of the sandbox and into production. For more information, see SMS message settings for Amazon Cognito user pools in the Amazon Cognito Developer Guide. Amazon Cognito evaluates Identity and Access Management (IAM) policies in requests for this API operation. For this operation, you must use IAM credentials to authorize requests, and you must grant yourself the corresponding IAM permission in a policy. Learn more

Parameters

-AnalyticsMetadata_AnalyticsEndpointId <String>
The endpoint ID. Information that you want to pass to Amazon Pinpoint about where to send notifications.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
-AuthFlow <AuthFlowType>
The authentication flow that you want to initiate. Each AuthFlow has linked AuthParameters that you must submit. The following are some example flows and their parameters.
  • USER_AUTH: Request a preferred authentication type or review available authentication types. From the offered authentication types, select one in a challenge response and then authenticate with that method in an additional challenge response.
  • REFRESH_TOKEN_AUTH: Receive new ID and access tokens when you pass a REFRESH_TOKEN parameter with a valid refresh token as the value.
  • USER_SRP_AUTH: Receive secure remote password (SRP) variables for the next challenge, PASSWORD_VERIFIER, when you pass USERNAME and SRP_A parameters..
  • ADMIN_USER_PASSWORD_AUTH: Receive new tokens or the next challenge, for example SOFTWARE_TOKEN_MFA, when you pass USERNAME and PASSWORD parameters.
All flows
USER_AUTH
The entry point for sign-in with passwords, one-time passwords, and WebAuthN authenticators.
USER_SRP_AUTH
Username-password authentication with the Secure Remote Password (SRP) protocol. For more information, see Use SRP password verification in custom authentication flow.
REFRESH_TOKEN_AUTH and REFRESH_TOKEN
Provide a valid refresh token and receive new ID and access tokens. For more information, see Using the refresh token.
CUSTOM_AUTH
Custom authentication with Lambda triggers. For more information, see Custom authentication challenge Lambda triggers.
ADMIN_USER_PASSWORD_AUTH
Username-password authentication with the password sent directly in the request. For more information, see Admin authentication flow.
USER_PASSWORD_AUTH is a flow type of InitiateAuth and isn't valid for AdminInitiateAuth.
Required?True
Position?Named
Accept pipeline input?True (ByPropertyName)
-AuthParameter <Hashtable>
The authentication parameters. These are inputs corresponding to the AuthFlow that you're invoking. The required values depend on the value of AuthFlow:
  • For USER_AUTH: USERNAME (required), PREFERRED_CHALLENGE. If you don't provide a value for PREFERRED_CHALLENGE, Amazon Cognito responds with the AvailableChallenges parameter that specifies the available sign-in methods.
  • For USER_SRP_AUTH: USERNAME (required), SRP_A (required), SECRET_HASH (required if the app client is configured with a client secret), DEVICE_KEY.
  • For ADMIN_USER_PASSWORD_AUTH: USERNAME (required), PASSWORD (required), SECRET_HASH (required if the app client is configured with a client secret), DEVICE_KEY.
  • For REFRESH_TOKEN_AUTH/REFRESH_TOKEN: REFRESH_TOKEN (required), SECRET_HASH (required if the app client is configured with a client secret), DEVICE_KEY.
  • For CUSTOM_AUTH: USERNAME (required), SECRET_HASH (if app client is configured with client secret), DEVICE_KEY. To start the authentication flow with password verification, include ChallengeName: SRP_A and SRP_A: (The SRP_A Value).
For more information about SECRET_HASH, see Computing secret hash values. For information about DEVICE_KEY, see Working with user devices in your user pool.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
AliasesAuthParameters
-ClientConfig <AmazonCognitoIdentityProviderConfig>
Amazon.PowerShell.Cmdlets.CGIP.AmazonCognitoIdentityProviderClientCmdlet.ClientConfig
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
-ClientId <String>
The ID of the app client where the user wants to sign in.
Required?True
Position?1
Accept pipeline input?True (ByValue, ByPropertyName)
-ClientMetadata <Hashtable>
A map of custom key-value pairs that you can provide as input for certain custom workflows that this action triggers.You create custom workflows by assigning Lambda functions to user pool triggers. When you use the AdminInitiateAuth API action, Amazon Cognito invokes the Lambda functions that are specified for various triggers. The ClientMetadata value is passed as input to the functions for only the following triggers:
  • Pre signup
  • Pre authentication
  • User migration
When Amazon Cognito invokes the functions for these triggers, it passes a JSON payload, which the function receives as input. This payload contains a validationData attribute, which provides the data that you assigned to the ClientMetadata parameter in your AdminInitiateAuth request. In your function code in Lambda, you can process the validationData value to enhance your workflow for your specific needs.When you use the AdminInitiateAuth API action, Amazon Cognito also invokes the functions for the following triggers, but it doesn't provide the ClientMetadata value as input:
  • Post authentication
  • Custom message
  • Pre token generation
  • Create auth challenge
  • Define auth challenge
  • Custom email sender
  • Custom SMS sender
For more information, see Customizing user pool Workflows with Lambda Triggers in the Amazon Cognito Developer Guide.When you use the ClientMetadata parameter, note that Amazon Cognito won't do the following:
  • Store the ClientMetadata value. This data is available only to Lambda triggers that are assigned to a user pool to support custom workflows. If your user pool configuration doesn't include triggers, the ClientMetadata parameter serves no purpose.
  • Validate the ClientMetadata value.
  • Encrypt the ClientMetadata value. Don't send sensitive information in this parameter.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
-ContextData_EncodedData <String>
Encoded device-fingerprint details that your app collected with the Amazon Cognito context data collection library. For more information, see Adding user device and session data to API requests.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
-ContextData_HttpHeader <HttpHeader[]>
The HTTP headers from your user's authentication request.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
AliasesContextData_HttpHeaders
-ContextData_IpAddress <String>
The source IP address of your user's device.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
-ContextData_ServerName <String>
The name of your application's service endpoint.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
-ContextData_ServerPath <String>
The path of your application's service endpoint.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
-Force <SwitchParameter>
This parameter overrides confirmation prompts to force the cmdlet to continue its operation. This parameter should always be used with caution.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
-PassThru <SwitchParameter>
Changes the cmdlet behavior to return the value passed to the ClientId parameter. The -PassThru parameter is deprecated, use -Select '^ClientId' instead. This parameter will be removed in a future version.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
-Select <String>
Use the -Select parameter to control the cmdlet output. The default value is '*'. Specifying -Select '*' will result in the cmdlet returning the whole service response (Amazon.CognitoIdentityProvider.Model.AdminInitiateAuthResponse). Specifying the name of a property of type Amazon.CognitoIdentityProvider.Model.AdminInitiateAuthResponse will result in that property being returned. Specifying -Select '^ParameterName' will result in the cmdlet returning the selected cmdlet parameter value.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
-Session <String>
The optional session ID from a ConfirmSignUp API request. You can sign in a user directly from the sign-up process with an AuthFlow of USER_AUTH and AuthParameters of EMAIL_OTP or SMS_OTP, depending on how your user pool sent the confirmation-code message.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
-UserPoolId <String>
The ID of the user pool where the user wants to sign in.
Required?True
Position?Named
Accept pipeline input?True (ByPropertyName)

Common Credential and Region Parameters

-AccessKey <String>
The AWS access key for the user account. This can be a temporary access key if the corresponding session token is supplied to the -SessionToken parameter.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
AliasesAK
-Credential <AWSCredentials>
An AWSCredentials object instance containing access and secret key information, and optionally a token for session-based credentials.
Required?False
Position?Named
Accept pipeline input?True (ByValue, ByPropertyName)
-EndpointUrl <String>
The endpoint to make the call against.Note: This parameter is primarily for internal AWS use and is not required/should not be specified for normal usage. The cmdlets normally determine which endpoint to call based on the region specified to the -Region parameter or set as default in the shell (via Set-DefaultAWSRegion). Only specify this parameter if you must direct the call to a specific custom endpoint.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
-NetworkCredential <PSCredential>
Used with SAML-based authentication when ProfileName references a SAML role profile. Contains the network credentials to be supplied during authentication with the configured identity provider's endpoint. This parameter is not required if the user's default network identity can or should be used during authentication.
Required?False
Position?Named
Accept pipeline input?True (ByValue, ByPropertyName)
-ProfileLocation <String>
Used to specify the name and location of the ini-format credential file (shared with the AWS CLI and other AWS SDKs)If this optional parameter is omitted this cmdlet will search the encrypted credential file used by the AWS SDK for .NET and AWS Toolkit for Visual Studio first. If the profile is not found then the cmdlet will search in the ini-format credential file at the default location: (user's home directory)\.aws\credentials.If this parameter is specified then this cmdlet will only search the ini-format credential file at the location given.As the current folder can vary in a shell or during script execution it is advised that you use specify a fully qualified path instead of a relative path.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
AliasesAWSProfilesLocation, ProfilesLocation
-ProfileName <String>
The user-defined name of an AWS credentials or SAML-based role profile containing credential information. The profile is expected to be found in the secure credential file shared with the AWS SDK for .NET and AWS Toolkit for Visual Studio. You can also specify the name of a profile stored in the .ini-format credential file used with the AWS CLI and other AWS SDKs.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
AliasesStoredCredentials, AWSProfileName
-Region <Object>
The system name of an AWS region or an AWSRegion instance. This governs the endpoint that will be used when calling service operations. Note that the AWS resources referenced in a call are usually region-specific.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
AliasesRegionToCall
-SecretKey <String>
The AWS secret key for the user account. This can be a temporary secret key if the corresponding session token is supplied to the -SessionToken parameter.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
AliasesSK, SecretAccessKey
-SessionToken <String>
The session token if the access and secret keys are temporary session-based credentials.
Required?False
Position?Named
Accept pipeline input?True (ByPropertyName)
AliasesST

Outputs

Amazon.CognitoIdentityProvider.Model.AdminInitiateAuthResponse
This cmdlet returns an Amazon.CognitoIdentityProvider.Model.AdminInitiateAuthResponse object containing multiple properties.
Developer Guide
Service API Reference
AWS Tools for PowerShell User Guide

Supported Version

AWS Tools for PowerShell: 2.x.y.z