sts

package
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 Go to latest Published: May 26, 2018 License: Apache-2.0 Imports: 5 Imported by: 0

Documentation

Overview

Package sts provides the client and types for making API requests to AWS Security Token Service.

The AWS Security Token Service (STS) is a web service that enables you to request temporary, limited-privilege credentials for AWS Identity and Access Management (IAM) users or for users that you authenticate (federated users). This guide provides descriptions of the STS API. For more detailed information about using this service, go to Temporary Security Credentials (http://docs.aws.amazon.com/IAM/latest/UserGuide/id_credentials_temp.html).

As an alternative to using the API, you can use one of the AWS SDKs, which consist of libraries and sample code for various programming languages and platforms (Java, Ruby, .NET, iOS, Android, etc.). The SDKs provide a convenient way to create programmatic access to STS. For example, the SDKs take care of cryptographically signing requests, managing errors, and retrying requests automatically. For information about the AWS SDKs, including how to download and install them, see the Tools for Amazon Web Services page (http://aws.amazon.com/tools/).

For information about setting up signatures and authorization through the API, go to Signing AWS API Requests (http://docs.aws.amazon.com/general/latest/gr/signing_aws_api_requests.html) in the AWS General Reference. For general information about the Query API, go to Making Query Requests (http://docs.aws.amazon.com/IAM/latest/UserGuide/IAM_UsingQueryAPI.html) in Using IAM. For information about using security tokens with other AWS products, go to AWS Services That Work with IAM (http://docs.aws.amazon.com/IAM/latest/UserGuide/reference_aws-services-that-work-with-iam.html) in the IAM User Guide.

If you're new to AWS and need additional technical information about a specific AWS product, you can find the product's technical documentation at http://aws.amazon.com/documentation/ (http://aws.amazon.com/documentation/).

Endpoints

The AWS Security Token Service (STS) has a default endpoint of https://sts.amazonaws.com that maps to the US East (N. Virginia) region. Additional regions are available and are activated by default. For more information, see Activating and Deactivating AWS STS in an AWS Region (http://docs.aws.amazon.com/IAM/latest/UserGuide/id_credentials_temp_enable-regions.html) in the IAM User Guide.

For information about STS endpoints, see Regions and Endpoints (http://docs.aws.amazon.com/general/latest/gr/rande.html#sts_region) in the AWS General Reference.

Recording API requests

STS supports AWS CloudTrail, which is a service that records AWS calls for your AWS account and delivers log files to an Amazon S3 bucket. By using information collected by CloudTrail, you can determine what requests were successfully made to STS, who made the request, when it was made, and so on. To learn more about CloudTrail, including how to turn it on and find your log files, see the AWS CloudTrail User Guide (http://docs.aws.amazon.com/awscloudtrail/latest/userguide/what_is_cloud_trail_top_level.html).

See https://docs.aws.amazon.com/goto/WebAPI/sts-2011-06-15 for more information on this service.

See sts package documentation for more information. https://docs.aws.amazon.com/sdk-for-go/api/service/sts/

Using the Client

To AWS Security Token Service with the SDK use the New function to create a new service client. With that client you can make API requests to the service. These clients are safe to use concurrently.

See the SDK's documentation for more information on how to use the SDK. https://docs.aws.amazon.com/sdk-for-go/api/

See aws.Config documentation for more information on configuring SDK clients. https://docs.aws.amazon.com/sdk-for-go/api/aws/#Config

See the AWS Security Token Service client STS for more information on creating client for this service. https://docs.aws.amazon.com/sdk-for-go/api/service/sts/#New

Index

Examples

Constants

View Source 
const (

	// ErrCodeExpiredTokenException for service response error code
	// "ExpiredTokenException".
	//
	// The web identity token that was passed is expired or is not valid. Get a
	// new identity token from the identity provider and then retry the request.
	ErrCodeExpiredTokenException = "ExpiredTokenException"

	// ErrCodeIDPCommunicationErrorException for service response error code
	// "IDPCommunicationError".
	//
	// The request could not be fulfilled because the non-AWS identity provider
	// (IDP) that was asked to verify the incoming identity token could not be reached.
	// This is often a transient error caused by network conditions. Retry the request
	// a limited number of times so that you don't exceed the request rate. If the
	// error persists, the non-AWS identity provider might be down or not responding.
	ErrCodeIDPCommunicationErrorException = "IDPCommunicationError"

	// ErrCodeIDPRejectedClaimException for service response error code
	// "IDPRejectedClaim".
	//
	// The identity provider (IdP) reported that authentication failed. This might
	// be because the claim is invalid.
	//
	// If this error is returned for the AssumeRoleWithWebIdentity operation, it
	// can also mean that the claim has expired or has been explicitly revoked.
	ErrCodeIDPRejectedClaimException = "IDPRejectedClaim"

	// ErrCodeInvalidAuthorizationMessageException for service response error code
	// "InvalidAuthorizationMessageException".
	//
	// The error returned if the message passed to DecodeAuthorizationMessage was
	// invalid. This can happen if the token contains invalid characters, such as
	// linebreaks.
	ErrCodeInvalidAuthorizationMessageException = "InvalidAuthorizationMessageException"

	// ErrCodeInvalidIdentityTokenException for service response error code
	// "InvalidIdentityToken".
	//
	// The web identity token that was passed could not be validated by AWS. Get
	// a new identity token from the identity provider and then retry the request.
	ErrCodeInvalidIdentityTokenException = "InvalidIdentityToken"

	// ErrCodeMalformedPolicyDocumentException for service response error code
	// "MalformedPolicyDocument".
	//
	// The request was rejected because the policy document was malformed. The error
	// message describes the specific error.
	ErrCodeMalformedPolicyDocumentException = "MalformedPolicyDocument"

	// ErrCodePackedPolicyTooLargeException for service response error code
	// "PackedPolicyTooLarge".
	//
	// The request was rejected because the policy document was too large. The error
	// message describes how big the policy document is, in packed form, as a percentage
	// of what the API allows.
	ErrCodePackedPolicyTooLargeException = "PackedPolicyTooLarge"

	// ErrCodeRegionDisabledException for service response error code
	// "RegionDisabledException".
	//
	// STS is not activated in the requested region for the account that is being
	// asked to generate credentials. The account administrator must use the IAM
	// console to activate STS in that region. For more information, see Activating
	// and Deactivating AWS STS in an AWS Region (http://docs.aws.amazon.com/IAM/latest/UserGuide/id_credentials_temp_enable-regions.html)
	// in the IAM User Guide.
	ErrCodeRegionDisabledException = "RegionDisabledException"
)
View Source 
const (
	ServiceName = "sts"       // Service endpoint prefix API calls made to.
	EndpointsID = ServiceName // Service ID for Regions and Endpoints metadata.
)

Service information constants

Variables

This section is empty.

Functions

This section is empty.

Types

type AssumeRoleInput 

type AssumeRoleInput struct {

	// The duration, in seconds, of the role session. The value can range from 900
	// seconds (15 minutes) up to the maximum session duration setting for the role.
	// This setting can have a value from 1 hour to 12 hours. If you specify a value
	// higher than this setting, the operation fails. For example, if you specify
	// a session duration of 12 hours, but your administrator set the maximum session
	// duration to 6 hours, your operation fails. To learn how to view the maximum
	// value for your role, see View the Maximum Session Duration Setting for a
	// Role (http://docs.aws.amazon.com/IAM/latest/UserGuide/id_roles_use.html#id_roles_use_view-role-max-session)
	// in the IAM User Guide.
	//
	// By default, the value is set to 3600 seconds.
	//
	// The DurationSeconds parameter is separate from the duration of a console
	// session that you might request using the returned credentials. The request
	// to the federation endpoint for a console sign-in token takes a SessionDuration
	// parameter that specifies the maximum length of the console session. For more
	// information, see Creating a URL that Enables Federated Users to Access the
	// AWS Management Console (http://docs.aws.amazon.com/IAM/latest/UserGuide/id_roles_providers_enable-console-custom-url.html)
	// in the IAM User Guide.
	DurationSeconds *int64 `min:"900" type:"integer"`

	// A unique identifier that is used by third parties when assuming roles in
	// their customers' accounts. For each role that the third party can assume,
	// they should instruct their customers to ensure the role's trust policy checks
	// for the external ID that the third party generated. Each time the third party
	// assumes the role, they should pass the customer's external ID. The external
	// ID is useful in order to help third parties bind a role to the customer who
	// created it. For more information about the external ID, see How to Use an
	// External ID When Granting Access to Your AWS Resources to a Third Party (http://docs.aws.amazon.com/IAM/latest/UserGuide/id_roles_create_for-user_externalid.html)
	// in the IAM User Guide.
	//
	// The regex used to validated this parameter is a string of characters consisting
	// of upper- and lower-case alphanumeric characters with no spaces. You can
	// also include underscores or any of the following characters: =,.@:/-
	ExternalId *string `min:"2" type:"string"`

	// An IAM policy in JSON format.
	//
	// This parameter is optional. If you pass a policy, the temporary security
	// credentials that are returned by the operation have the permissions that
	// are allowed by both (the intersection of) the access policy of the role that
	// is being assumed, and the policy that you pass. This gives you a way to further
	// restrict the permissions for the resulting temporary security credentials.
	// You cannot use the passed policy to grant permissions that are in excess
	// of those allowed by the access policy of the role that is being assumed.
	// For more information, see Permissions for AssumeRole, AssumeRoleWithSAML,
	// and AssumeRoleWithWebIdentity (http://docs.aws.amazon.com/IAM/latest/UserGuide/id_credentials_temp_control-access_assumerole.html)
	// in the IAM User Guide.
	//
	// The format for this parameter, as described by its regex pattern, is a string
	// of characters up to 2048 characters in length. The characters can be any
	// ASCII character from the space character to the end of the valid character
	// list (\u0020-\u00FF). It can also include the tab (\u0009), linefeed (\u000A),
	// and carriage return (\u000D) characters.
	//
	// The policy plain text must be 2048 bytes or shorter. However, an internal
	// conversion compresses it into a packed binary format with a separate limit.
	// The PackedPolicySize response element indicates by percentage how close to
	// the upper size limit the policy is, with 100% equaling the maximum allowed
	// size.
	Policy *string `min:"1" type:"string"`

	// The Amazon Resource Name (ARN) of the role to assume.
	//
	// RoleArn is a required field
	RoleArn *string `min:"20" type:"string" required:"true"`

	// An identifier for the assumed role session.
	//
	// Use the role session name to uniquely identify a session when the same role
	// is assumed by different principals or for different reasons. In cross-account
	// scenarios, the role session name is visible to, and can be logged by the
	// account that owns the role. The role session name is also used in the ARN
	// of the assumed role principal. This means that subsequent cross-account API
	// requests using the temporary security credentials will expose the role session
	// name to the external account in their CloudTrail logs.
	//
	// The regex used to validate this parameter is a string of characters consisting
	// of upper- and lower-case alphanumeric characters with no spaces. You can
	// also include underscores or any of the following characters: =,.@-
	//
	// RoleSessionName is a required field
	RoleSessionName *string `min:"2" type:"string" required:"true"`

	// The identification number of the MFA device that is associated with the user
	// who is making the AssumeRole call. Specify this value if the trust policy
	// of the role being assumed includes a condition that requires MFA authentication.
	// The value is either the serial number for a hardware device (such as GAHT12345678)
	// or an Amazon Resource Name (ARN) for a virtual device (such as arn:aws:iam::123456789012:mfa/user).
	//
	// The regex used to validate this parameter is a string of characters consisting
	// of upper- and lower-case alphanumeric characters with no spaces. You can
	// also include underscores or any of the following characters: =,.@-
	SerialNumber *string `min:"9" type:"string"`

	// The value provided by the MFA device, if the trust policy of the role being
	// assumed requires MFA (that is, if the policy includes a condition that tests
	// for MFA). If the role being assumed requires MFA and if the TokenCode value
	// is missing or expired, the AssumeRole call returns an "access denied" error.
	//
	// The format for this parameter, as described by its regex pattern, is a sequence
	// of six numeric digits.
	TokenCode *string `min:"6" type:"string"`
	// contains filtered or unexported fields
}

Please also see https://docs.aws.amazon.com/goto/WebAPI/sts-2011-06-15/AssumeRoleRequest

func (AssumeRoleInput) GoString 

func (s AssumeRoleInput) GoString() string

GoString returns the string representation

func (AssumeRoleInput) String 

func (s AssumeRoleInput) String() string

String returns the string representation

func (*AssumeRoleInput) Validate 

func (s *AssumeRoleInput) Validate() error

Validate inspects the fields of the type to determine if they are valid.

type AssumeRoleOutput 

type AssumeRoleOutput struct {

	// The Amazon Resource Name (ARN) and the assumed role ID, which are identifiers
	// that you can use to refer to the resulting temporary security credentials.
	// For example, you can reference these credentials as a principal in a resource-based
	// policy by using the ARN or assumed role ID. The ARN and ID include the RoleSessionName
	// that you specified when you called AssumeRole.
	AssumedRoleUser *AssumedRoleUser `type:"structure"`

	// The temporary security credentials, which include an access key ID, a secret
	// access key, and a security (or session) token.
	//
	// Note: The size of the security token that STS APIs return is not fixed. We
	// strongly recommend that you make no assumptions about the maximum size. As
	// of this writing, the typical size is less than 4096 bytes, but that can vary.
	// Also, future updates to AWS might require larger sizes.
	Credentials *Credentials `type:"structure"`

	// A percentage value that indicates the size of the policy in packed form.
	// The service rejects any policy with a packed size greater than 100 percent,
	// which means the policy exceeded the allowed space.
	PackedPolicySize *int64 `type:"integer"`
	// contains filtered or unexported fields
}

Contains the response to a successful AssumeRole request, including temporary AWS credentials that can be used to make AWS requests. Please also see https://docs.aws.amazon.com/goto/WebAPI/sts-2011-06-15/AssumeRoleResponse

func (AssumeRoleOutput) GoString 

func (s AssumeRoleOutput) GoString() string

GoString returns the string representation

func (AssumeRoleOutput) SDKResponseMetadata 

func (s AssumeRoleOutput) SDKResponseMetadata() aws.Response

SDKResponseMetdata return sthe response metadata for the API.

func (AssumeRoleOutput) String 

func (s AssumeRoleOutput) String() string

String returns the string representation

type AssumeRoleRequest 

type AssumeRoleRequest struct {
	*aws.Request
	Input *AssumeRoleInput
	Copy  func(*AssumeRoleInput) AssumeRoleRequest
}

AssumeRoleRequest is a API request type for the AssumeRole API operation.

func (AssumeRoleRequest) Send 

func (r AssumeRoleRequest) Send() (*AssumeRoleOutput, error)

Send marshals and sends the AssumeRole API request.

type AssumeRoleWithSAMLInput 

type AssumeRoleWithSAMLInput struct {

	// The duration, in seconds, of the role session. Your role session lasts for
	// the duration that you specify for the DurationSeconds parameter, or until
	// the time specified in the SAML authentication response's SessionNotOnOrAfter
	// value, whichever is shorter. You can provide a DurationSeconds value from
	// 900 seconds (15 minutes) up to the maximum session duration setting for the
	// role. This setting can have a value from 1 hour to 12 hours. If you specify
	// a value higher than this setting, the operation fails. For example, if you
	// specify a session duration of 12 hours, but your administrator set the maximum
	// session duration to 6 hours, your operation fails. To learn how to view the
	// maximum value for your role, see View the Maximum Session Duration Setting
	// for a Role (http://docs.aws.amazon.com/IAM/latest/UserGuide/id_roles_use.html#id_roles_use_view-role-max-session)
	// in the IAM User Guide.
	//
	// By default, the value is set to 3600 seconds.
	//
	// The DurationSeconds parameter is separate from the duration of a console
	// session that you might request using the returned credentials. The request
	// to the federation endpoint for a console sign-in token takes a SessionDuration
	// parameter that specifies the maximum length of the console session. For more
	// information, see Creating a URL that Enables Federated Users to Access the
	// AWS Management Console (http://docs.aws.amazon.com/IAM/latest/UserGuide/id_roles_providers_enable-console-custom-url.html)
	// in the IAM User Guide.
	DurationSeconds *int64 `min:"900" type:"integer"`

	// An IAM policy in JSON format.
	//
	// The policy parameter is optional. If you pass a policy, the temporary security
	// credentials that are returned by the operation have the permissions that
	// are allowed by both the access policy of the role that is being assumed,
	// and the policy that you pass. This gives you a way to further restrict the
	// permissions for the resulting temporary security credentials. You cannot
	// use the passed policy to grant permissions that are in excess of those allowed
	// by the access policy of the role that is being assumed. For more information,
	// Permissions for AssumeRole, AssumeRoleWithSAML, and AssumeRoleWithWebIdentity
	// (http://docs.aws.amazon.com/IAM/latest/UserGuide/id_credentials_temp_control-access_assumerole.html)
	// in the IAM User Guide.
	//
	// The format for this parameter, as described by its regex pattern, is a string
	// of characters up to 2048 characters in length. The characters can be any
	// ASCII character from the space character to the end of the valid character
	// list (\u0020-\u00FF). It can also include the tab (\u0009), linefeed (\u000A),
	// and carriage return (\u000D) characters.
	//
	// The policy plain text must be 2048 bytes or shorter. However, an internal
	// conversion compresses it into a packed binary format with a separate limit.
	// The PackedPolicySize response element indicates by percentage how close to
	// the upper size limit the policy is, with 100% equaling the maximum allowed
	// size.
	Policy *string `min:"1" type:"string"`

	// The Amazon Resource Name (ARN) of the SAML provider in IAM that describes
	// the IdP.
	//
	// PrincipalArn is a required field
	PrincipalArn *string `min:"20" type:"string" required:"true"`

	// The Amazon Resource Name (ARN) of the role that the caller is assuming.
	//
	// RoleArn is a required field
	RoleArn *string `min:"20" type:"string" required:"true"`

	// The base-64 encoded SAML authentication response provided by the IdP.
	//
	// For more information, see Configuring a Relying Party and Adding Claims (http://docs.aws.amazon.com/IAM/latest/UserGuide/create-role-saml-IdP-tasks.html)
	// in the Using IAM guide.
	//
	// SAMLAssertion is a required field
	SAMLAssertion *string `min:"4" type:"string" required:"true"`
	// contains filtered or unexported fields
}

Please also see https://docs.aws.amazon.com/goto/WebAPI/sts-2011-06-15/AssumeRoleWithSAMLRequest

func (AssumeRoleWithSAMLInput) GoString 

func (s AssumeRoleWithSAMLInput) GoString() string

GoString returns the string representation

func (AssumeRoleWithSAMLInput) String 

func (s AssumeRoleWithSAMLInput) String() string

String returns the string representation

func (*AssumeRoleWithSAMLInput) Validate 

func (s *AssumeRoleWithSAMLInput) Validate() error

Validate inspects the fields of the type to determine if they are valid.

type AssumeRoleWithSAMLOutput 

type AssumeRoleWithSAMLOutput struct {

	// The identifiers for the temporary security credentials that the operation
	// returns.
	AssumedRoleUser *AssumedRoleUser `type:"structure"`

	// The value of the Recipient attribute of the SubjectConfirmationData element
	// of the SAML assertion.
	Audience *string `type:"string"`

	// The temporary security credentials, which include an access key ID, a secret
	// access key, and a security (or session) token.
	//
	// Note: The size of the security token that STS APIs return is not fixed. We
	// strongly recommend that you make no assumptions about the maximum size. As
	// of this writing, the typical size is less than 4096 bytes, but that can vary.
	// Also, future updates to AWS might require larger sizes.
	Credentials *Credentials `type:"structure"`

	// The value of the Issuer element of the SAML assertion.
	Issuer *string `type:"string"`

	// A hash value based on the concatenation of the Issuer response value, the
	// AWS account ID, and the friendly name (the last part of the ARN) of the SAML
	// provider in IAM. The combination of NameQualifier and Subject can be used
	// to uniquely identify a federated user.
	//
	// The following pseudocode shows how the hash value is calculated:
	//
	// BASE64 ( SHA1 ( "https://example.com/saml" + "123456789012" + "/MySAMLIdP"
	// ) )
	NameQualifier *string `type:"string"`

	// A percentage value that indicates the size of the policy in packed form.
	// The service rejects any policy with a packed size greater than 100 percent,
	// which means the policy exceeded the allowed space.
	PackedPolicySize *int64 `type:"integer"`

	// The value of the NameID element in the Subject element of the SAML assertion.
	Subject *string `type:"string"`

	// The format of the name ID, as defined by the Format attribute in the NameID
	// element of the SAML assertion. Typical examples of the format are transient
	// or persistent.
	//
	// If the format includes the prefix urn:oasis:names:tc:SAML:2.0:nameid-format,
	// that prefix is removed. For example, urn:oasis:names:tc:SAML:2.0:nameid-format:transient
	// is returned as transient. If the format includes any other prefix, the format
	// is returned with no modifications.
	SubjectType *string `type:"string"`
	// contains filtered or unexported fields
}

Contains the response to a successful AssumeRoleWithSAML request, including temporary AWS credentials that can be used to make AWS requests. Please also see https://docs.aws.amazon.com/goto/WebAPI/sts-2011-06-15/AssumeRoleWithSAMLResponse

func (AssumeRoleWithSAMLOutput) GoString 

func (s AssumeRoleWithSAMLOutput) GoString() string

GoString returns the string representation

func (AssumeRoleWithSAMLOutput) SDKResponseMetadata 

func (s AssumeRoleWithSAMLOutput) SDKResponseMetadata() aws.Response

SDKResponseMetdata return sthe response metadata for the API.

func (AssumeRoleWithSAMLOutput) String 

func (s AssumeRoleWithSAMLOutput) String() string

String returns the string representation

type AssumeRoleWithSAMLRequest 

type AssumeRoleWithSAMLRequest struct {
	*aws.Request
	Input *AssumeRoleWithSAMLInput
	Copy  func(*AssumeRoleWithSAMLInput) AssumeRoleWithSAMLRequest
}

AssumeRoleWithSAMLRequest is a API request type for the AssumeRoleWithSAML API operation.

func (AssumeRoleWithSAMLRequest) Send 

func (r AssumeRoleWithSAMLRequest) Send() (*AssumeRoleWithSAMLOutput, error)

Send marshals and sends the AssumeRoleWithSAML API request.

type AssumeRoleWithWebIdentityInput 

type AssumeRoleWithWebIdentityInput struct {

	// The duration, in seconds, of the role session. The value can range from 900
	// seconds (15 minutes) up to the maximum session duration setting for the role.
	// This setting can have a value from 1 hour to 12 hours. If you specify a value
	// higher than this setting, the operation fails. For example, if you specify
	// a session duration of 12 hours, but your administrator set the maximum session
	// duration to 6 hours, your operation fails. To learn how to view the maximum
	// value for your role, see View the Maximum Session Duration Setting for a
	// Role (http://docs.aws.amazon.com/IAM/latest/UserGuide/id_roles_use.html#id_roles_use_view-role-max-session)
	// in the IAM User Guide.
	//
	// By default, the value is set to 3600 seconds.
	//
	// The DurationSeconds parameter is separate from the duration of a console
	// session that you might request using the returned credentials. The request
	// to the federation endpoint for a console sign-in token takes a SessionDuration
	// parameter that specifies the maximum length of the console session. For more
	// information, see Creating a URL that Enables Federated Users to Access the
	// AWS Management Console (http://docs.aws.amazon.com/IAM/latest/UserGuide/id_roles_providers_enable-console-custom-url.html)
	// in the IAM User Guide.
	DurationSeconds *int64 `min:"900" type:"integer"`

	// An IAM policy in JSON format.
	//
	// The policy parameter is optional. If you pass a policy, the temporary security
	// credentials that are returned by the operation have the permissions that
	// are allowed by both the access policy of the role that is being assumed,
	// and the policy that you pass. This gives you a way to further restrict the
	// permissions for the resulting temporary security credentials. You cannot
	// use the passed policy to grant permissions that are in excess of those allowed
	// by the access policy of the role that is being assumed. For more information,
	// see Permissions for AssumeRoleWithWebIdentity (http://docs.aws.amazon.com/IAM/latest/UserGuide/id_credentials_temp_control-access_assumerole.html)
	// in the IAM User Guide.
	//
	// The format for this parameter, as described by its regex pattern, is a string
	// of characters up to 2048 characters in length. The characters can be any
	// ASCII character from the space character to the end of the valid character
	// list (\u0020-\u00FF). It can also include the tab (\u0009), linefeed (\u000A),
	// and carriage return (\u000D) characters.
	//
	// The policy plain text must be 2048 bytes or shorter. However, an internal
	// conversion compresses it into a packed binary format with a separate limit.
	// The PackedPolicySize response element indicates by percentage how close to
	// the upper size limit the policy is, with 100% equaling the maximum allowed
	// size.
	Policy *string `min:"1" type:"string"`

	// The fully qualified host component of the domain name of the identity provider.
	//
	// Specify this value only for OAuth 2.0 access tokens. Currently www.amazon.com
	// and graph.facebook.com are the only supported identity providers for OAuth
	// 2.0 access tokens. Do not include URL schemes and port numbers.
	//
	// Do not specify this value for OpenID Connect ID tokens.
	ProviderId *string `min:"4" type:"string"`

	// The Amazon Resource Name (ARN) of the role that the caller is assuming.
	//
	// RoleArn is a required field
	RoleArn *string `min:"20" type:"string" required:"true"`

	// An identifier for the assumed role session. Typically, you pass the name
	// or identifier that is associated with the user who is using your application.
	// That way, the temporary security credentials that your application will use
	// are associated with that user. This session name is included as part of the
	// ARN and assumed role ID in the AssumedRoleUser response element.
	//
	// The regex used to validate this parameter is a string of characters consisting
	// of upper- and lower-case alphanumeric characters with no spaces. You can
	// also include underscores or any of the following characters: =,.@-
	//
	// RoleSessionName is a required field
	RoleSessionName *string `min:"2" type:"string" required:"true"`

	// The OAuth 2.0 access token or OpenID Connect ID token that is provided by
	// the identity provider. Your application must get this token by authenticating
	// the user who is using your application with a web identity provider before
	// the application makes an AssumeRoleWithWebIdentity call.
	//
	// WebIdentityToken is a required field
	WebIdentityToken *string `min:"4" type:"string" required:"true"`
	// contains filtered or unexported fields
}

Please also see https://docs.aws.amazon.com/goto/WebAPI/sts-2011-06-15/AssumeRoleWithWebIdentityRequest

func (AssumeRoleWithWebIdentityInput) GoString 

func (s AssumeRoleWithWebIdentityInput) GoString() string

GoString returns the string representation

func (AssumeRoleWithWebIdentityInput) String 

func (s AssumeRoleWithWebIdentityInput) String() string

String returns the string representation

func (*AssumeRoleWithWebIdentityInput) Validate 

func (s *AssumeRoleWithWebIdentityInput) Validate() error

Validate inspects the fields of the type to determine if they are valid.

type AssumeRoleWithWebIdentityOutput 

type AssumeRoleWithWebIdentityOutput struct {

	// The Amazon Resource Name (ARN) and the assumed role ID, which are identifiers
	// that you can use to refer to the resulting temporary security credentials.
	// For example, you can reference these credentials as a principal in a resource-based
	// policy by using the ARN or assumed role ID. The ARN and ID include the RoleSessionName
	// that you specified when you called AssumeRole.
	AssumedRoleUser *AssumedRoleUser `type:"structure"`

	// The intended audience (also known as client ID) of the web identity token.
	// This is traditionally the client identifier issued to the application that
	// requested the web identity token.
	Audience *string `type:"string"`

	// The temporary security credentials, which include an access key ID, a secret
	// access key, and a security token.
	//
	// Note: The size of the security token that STS APIs return is not fixed. We
	// strongly recommend that you make no assumptions about the maximum size. As
	// of this writing, the typical size is less than 4096 bytes, but that can vary.
	// Also, future updates to AWS might require larger sizes.
	Credentials *Credentials `type:"structure"`

	// A percentage value that indicates the size of the policy in packed form.
	// The service rejects any policy with a packed size greater than 100 percent,
	// which means the policy exceeded the allowed space.
	PackedPolicySize *int64 `type:"integer"`

	// The issuing authority of the web identity token presented. For OpenID Connect
	// ID Tokens this contains the value of the iss field. For OAuth 2.0 access
	// tokens, this contains the value of the ProviderId parameter that was passed
	// in the AssumeRoleWithWebIdentity request.
	Provider *string `type:"string"`

	// The unique user identifier that is returned by the identity provider. This
	// identifier is associated with the WebIdentityToken that was submitted with
	// the AssumeRoleWithWebIdentity call. The identifier is typically unique to
	// the user and the application that acquired the WebIdentityToken (pairwise
	// identifier). For OpenID Connect ID tokens, this field contains the value
	// returned by the identity provider as the token's sub (Subject) claim.
	SubjectFromWebIdentityToken *string `min:"6" type:"string"`
	// contains filtered or unexported fields
}

Contains the response to a successful AssumeRoleWithWebIdentity request, including temporary AWS credentials that can be used to make AWS requests. Please also see https://docs.aws.amazon.com/goto/WebAPI/sts-2011-06-15/AssumeRoleWithWebIdentityResponse

func (AssumeRoleWithWebIdentityOutput) GoString 

func (s AssumeRoleWithWebIdentityOutput) GoString() string

GoString returns the string representation

func (AssumeRoleWithWebIdentityOutput) SDKResponseMetadata 

func (s AssumeRoleWithWebIdentityOutput) SDKResponseMetadata() aws.Response

SDKResponseMetdata return sthe response metadata for the API.

func (AssumeRoleWithWebIdentityOutput) String 

func (s AssumeRoleWithWebIdentityOutput) String() string

String returns the string representation

type AssumeRoleWithWebIdentityRequest 

type AssumeRoleWithWebIdentityRequest struct {
	*aws.Request
	Input *AssumeRoleWithWebIdentityInput
	Copy  func(*AssumeRoleWithWebIdentityInput) AssumeRoleWithWebIdentityRequest
}

AssumeRoleWithWebIdentityRequest is a API request type for the AssumeRoleWithWebIdentity API operation.

func (AssumeRoleWithWebIdentityRequest) Send 

func (r AssumeRoleWithWebIdentityRequest) Send() (*AssumeRoleWithWebIdentityOutput, error)

Send marshals and sends the AssumeRoleWithWebIdentity API request.

type AssumedRoleUser 

type AssumedRoleUser struct {

	// The ARN of the temporary security credentials that are returned from the
	// AssumeRole action. For more information about ARNs and how to use them in
	// policies, see IAM Identifiers (http://docs.aws.amazon.com/IAM/latest/UserGuide/reference_identifiers.html)
	// in Using IAM.
	//
	// Arn is a required field
	Arn *string `min:"20" type:"string" required:"true"`

	// A unique identifier that contains the role ID and the role session name of
	// the role that is being assumed. The role ID is generated by AWS when the
	// role is created.
	//
	// AssumedRoleId is a required field
	AssumedRoleId *string `min:"2" type:"string" required:"true"`
	// contains filtered or unexported fields
}

The identifiers for the temporary security credentials that the operation returns. Please also see https://docs.aws.amazon.com/goto/WebAPI/sts-2011-06-15/AssumedRoleUser

func (AssumedRoleUser) GoString 

func (s AssumedRoleUser) GoString() string

GoString returns the string representation

func (AssumedRoleUser) String 

func (s AssumedRoleUser) String() string

String returns the string representation

type Credentials 

type Credentials struct {

	// The access key ID that identifies the temporary security credentials.
	//
	// AccessKeyId is a required field
	AccessKeyId *string `min:"16" type:"string" required:"true"`

	// The date on which the current credentials expire.
	//
	// Expiration is a required field
	Expiration *time.Time `type:"timestamp" timestampFormat:"iso8601" required:"true"`

	// The secret access key that can be used to sign requests.
	//
	// SecretAccessKey is a required field
	SecretAccessKey *string `type:"string" required:"true"`

	// The token that users must pass to the service API to use the temporary credentials.
	//
	// SessionToken is a required field
	SessionToken *string `type:"string" required:"true"`
	// contains filtered or unexported fields
}

AWS credentials for API authentication. Please also see https://docs.aws.amazon.com/goto/WebAPI/sts-2011-06-15/Credentials

func (Credentials) GoString 

func (s Credentials) GoString() string

GoString returns the string representation

func (Credentials) String 

func (s Credentials) String() string

String returns the string representation

type DecodeAuthorizationMessageInput 

type DecodeAuthorizationMessageInput struct {

	// The encoded message that was returned with the response.
	//
	// EncodedMessage is a required field
	EncodedMessage *string `min:"1" type:"string" required:"true"`
	// contains filtered or unexported fields
}

Please also see https://docs.aws.amazon.com/goto/WebAPI/sts-2011-06-15/DecodeAuthorizationMessageRequest

func (DecodeAuthorizationMessageInput) GoString 

func (s DecodeAuthorizationMessageInput) GoString() string

GoString returns the string representation

func (DecodeAuthorizationMessageInput) String 

func (s DecodeAuthorizationMessageInput) String() string

String returns the string representation

func (*DecodeAuthorizationMessageInput) Validate 

func (s *DecodeAuthorizationMessageInput) Validate() error

Validate inspects the fields of the type to determine if they are valid.

type DecodeAuthorizationMessageOutput 

type DecodeAuthorizationMessageOutput struct {

	// An XML document that contains the decoded message.
	DecodedMessage *string `type:"string"`
	// contains filtered or unexported fields
}

A document that contains additional information about the authorization status of a request from an encoded message that is returned in response to an AWS request. Please also see https://docs.aws.amazon.com/goto/WebAPI/sts-2011-06-15/DecodeAuthorizationMessageResponse

func (DecodeAuthorizationMessageOutput) GoString 

func (s DecodeAuthorizationMessageOutput) GoString() string

GoString returns the string representation

func (DecodeAuthorizationMessageOutput) SDKResponseMetadata 

func (s DecodeAuthorizationMessageOutput) SDKResponseMetadata() aws.Response

SDKResponseMetdata return sthe response metadata for the API.

func (DecodeAuthorizationMessageOutput) String 

func (s DecodeAuthorizationMessageOutput) String() string

String returns the string representation

type DecodeAuthorizationMessageRequest 

type DecodeAuthorizationMessageRequest struct {
	*aws.Request
	Input *DecodeAuthorizationMessageInput
	Copy  func(*DecodeAuthorizationMessageInput) DecodeAuthorizationMessageRequest
}

DecodeAuthorizationMessageRequest is a API request type for the DecodeAuthorizationMessage API operation.

func (DecodeAuthorizationMessageRequest) Send 

func (r DecodeAuthorizationMessageRequest) Send() (*DecodeAuthorizationMessageOutput, error)

Send marshals and sends the DecodeAuthorizationMessage API request.

type FederatedUser 

type FederatedUser struct {

	// The ARN that specifies the federated user that is associated with the credentials.
	// For more information about ARNs and how to use them in policies, see IAM
	// Identifiers (http://docs.aws.amazon.com/IAM/latest/UserGuide/reference_identifiers.html)
	// in Using IAM.
	//
	// Arn is a required field
	Arn *string `min:"20" type:"string" required:"true"`

	// The string that identifies the federated user associated with the credentials,
	// similar to the unique ID of an IAM user.
	//
	// FederatedUserId is a required field
	FederatedUserId *string `min:"2" type:"string" required:"true"`
	// contains filtered or unexported fields
}

Identifiers for the federated user that is associated with the credentials. Please also see https://docs.aws.amazon.com/goto/WebAPI/sts-2011-06-15/FederatedUser

func (FederatedUser) GoString 

func (s FederatedUser) GoString() string

GoString returns the string representation

func (FederatedUser) String 

func (s FederatedUser) String() string

String returns the string representation

type GetCallerIdentityInput 

type GetCallerIdentityInput struct {
	// contains filtered or unexported fields
}

Please also see https://docs.aws.amazon.com/goto/WebAPI/sts-2011-06-15/GetCallerIdentityRequest

func (GetCallerIdentityInput) GoString 

func (s GetCallerIdentityInput) GoString() string

GoString returns the string representation

func (GetCallerIdentityInput) String 

func (s GetCallerIdentityInput) String() string

String returns the string representation

type GetCallerIdentityOutput 

type GetCallerIdentityOutput struct {

	// The AWS account ID number of the account that owns or contains the calling
	// entity.
	Account *string `type:"string"`

	// The AWS ARN associated with the calling entity.
	Arn *string `min:"20" type:"string"`

	// The unique identifier of the calling entity. The exact value depends on the
	// type of entity making the call. The values returned are those listed in the
	// aws:userid column in the Principal table (http://docs.aws.amazon.com/IAM/latest/UserGuide/reference_policies_variables.html#principaltable)
	// found on the Policy Variables reference page in the IAM User Guide.
	UserId *string `type:"string"`
	// contains filtered or unexported fields
}

Contains the response to a successful GetCallerIdentity request, including information about the entity making the request. Please also see https://docs.aws.amazon.com/goto/WebAPI/sts-2011-06-15/GetCallerIdentityResponse

func (GetCallerIdentityOutput) GoString 

func (s GetCallerIdentityOutput) GoString() string

GoString returns the string representation

func (GetCallerIdentityOutput) SDKResponseMetadata 

func (s GetCallerIdentityOutput) SDKResponseMetadata() aws.Response

SDKResponseMetdata return sthe response metadata for the API.

func (GetCallerIdentityOutput) String 

func (s GetCallerIdentityOutput) String() string

String returns the string representation

type GetCallerIdentityRequest 

type GetCallerIdentityRequest struct {
	*aws.Request
	Input *GetCallerIdentityInput
	Copy  func(*GetCallerIdentityInput) GetCallerIdentityRequest
}

GetCallerIdentityRequest is a API request type for the GetCallerIdentity API operation.

func (GetCallerIdentityRequest) Send 

func (r GetCallerIdentityRequest) Send() (*GetCallerIdentityOutput, error)

Send marshals and sends the GetCallerIdentity API request.

type GetFederationTokenInput 

type GetFederationTokenInput struct {

	// The duration, in seconds, that the session should last. Acceptable durations
	// for federation sessions range from 900 seconds (15 minutes) to 129600 seconds
	// (36 hours), with 43200 seconds (12 hours) as the default. Sessions obtained
	// using AWS account (root) credentials are restricted to a maximum of 3600
	// seconds (one hour). If the specified duration is longer than one hour, the
	// session obtained by using AWS account (root) credentials defaults to one
	// hour.
	DurationSeconds *int64 `min:"900" type:"integer"`

	// The name of the federated user. The name is used as an identifier for the
	// temporary security credentials (such as Bob). For example, you can reference
	// the federated user name in a resource-based policy, such as in an Amazon
	// S3 bucket policy.
	//
	// The regex used to validate this parameter is a string of characters consisting
	// of upper- and lower-case alphanumeric characters with no spaces. You can
	// also include underscores or any of the following characters: =,.@-
	//
	// Name is a required field
	Name *string `min:"2" type:"string" required:"true"`

	// An IAM policy in JSON format that is passed with the GetFederationToken call
	// and evaluated along with the policy or policies that are attached to the
	// IAM user whose credentials are used to call GetFederationToken. The passed
	// policy is used to scope down the permissions that are available to the IAM
	// user, by allowing only a subset of the permissions that are granted to the
	// IAM user. The passed policy cannot grant more permissions than those granted
	// to the IAM user. The final permissions for the federated user are the most
	// restrictive set based on the intersection of the passed policy and the IAM
	// user policy.
	//
	// If you do not pass a policy, the resulting temporary security credentials
	// have no effective permissions. The only exception is when the temporary security
	// credentials are used to access a resource that has a resource-based policy
	// that specifically allows the federated user to access the resource.
	//
	// The format for this parameter, as described by its regex pattern, is a string
	// of characters up to 2048 characters in length. The characters can be any
	// ASCII character from the space character to the end of the valid character
	// list (\u0020-\u00FF). It can also include the tab (\u0009), linefeed (\u000A),
	// and carriage return (\u000D) characters.
	//
	// The policy plain text must be 2048 bytes or shorter. However, an internal
	// conversion compresses it into a packed binary format with a separate limit.
	// The PackedPolicySize response element indicates by percentage how close to
	// the upper size limit the policy is, with 100% equaling the maximum allowed
	// size.
	//
	// For more information about how permissions work, see Permissions for GetFederationToken
	// (http://docs.aws.amazon.com/IAM/latest/UserGuide/id_credentials_temp_control-access_getfederationtoken.html).
	Policy *string `min:"1" type:"string"`
	// contains filtered or unexported fields
}

Please also see https://docs.aws.amazon.com/goto/WebAPI/sts-2011-06-15/GetFederationTokenRequest

func (GetFederationTokenInput) GoString 

func (s GetFederationTokenInput) GoString() string

GoString returns the string representation

func (GetFederationTokenInput) String 

func (s GetFederationTokenInput) String() string

String returns the string representation

func (*GetFederationTokenInput) Validate 

func (s *GetFederationTokenInput) Validate() error

Validate inspects the fields of the type to determine if they are valid.

type GetFederationTokenOutput 

type GetFederationTokenOutput struct {

	// The temporary security credentials, which include an access key ID, a secret
	// access key, and a security (or session) token.
	//
	// Note: The size of the security token that STS APIs return is not fixed. We
	// strongly recommend that you make no assumptions about the maximum size. As
	// of this writing, the typical size is less than 4096 bytes, but that can vary.
	// Also, future updates to AWS might require larger sizes.
	Credentials *Credentials `type:"structure"`

	// Identifiers for the federated user associated with the credentials (such
	// as arn:aws:sts::123456789012:federated-user/Bob or 123456789012:Bob). You
	// can use the federated user's ARN in your resource-based policies, such as
	// an Amazon S3 bucket policy.
	FederatedUser *FederatedUser `type:"structure"`

	// A percentage value indicating the size of the policy in packed form. The
	// service rejects policies for which the packed size is greater than 100 percent
	// of the allowed value.
	PackedPolicySize *int64 `type:"integer"`
	// contains filtered or unexported fields
}

Contains the response to a successful GetFederationToken request, including temporary AWS credentials that can be used to make AWS requests. Please also see https://docs.aws.amazon.com/goto/WebAPI/sts-2011-06-15/GetFederationTokenResponse

func (GetFederationTokenOutput) GoString 

func (s GetFederationTokenOutput) GoString() string

GoString returns the string representation

func (GetFederationTokenOutput) SDKResponseMetadata 

func (s GetFederationTokenOutput) SDKResponseMetadata() aws.Response

SDKResponseMetdata return sthe response metadata for the API.

func (GetFederationTokenOutput) String 

func (s GetFederationTokenOutput) String() string

String returns the string representation

type GetFederationTokenRequest 

type GetFederationTokenRequest struct {
	*aws.Request
	Input *GetFederationTokenInput
	Copy  func(*GetFederationTokenInput) GetFederationTokenRequest
}

GetFederationTokenRequest is a API request type for the GetFederationToken API operation.

func (GetFederationTokenRequest) Send 

func (r GetFederationTokenRequest) Send() (*GetFederationTokenOutput, error)

Send marshals and sends the GetFederationToken API request.

type GetSessionTokenInput 

type GetSessionTokenInput struct {

	// The duration, in seconds, that the credentials should remain valid. Acceptable
	// durations for IAM user sessions range from 900 seconds (15 minutes) to 129600
	// seconds (36 hours), with 43200 seconds (12 hours) as the default. Sessions
	// for AWS account owners are restricted to a maximum of 3600 seconds (one hour).
	// If the duration is longer than one hour, the session for AWS account owners
	// defaults to one hour.
	DurationSeconds *int64 `min:"900" type:"integer"`

	// The identification number of the MFA device that is associated with the IAM
	// user who is making the GetSessionToken call. Specify this value if the IAM
	// user has a policy that requires MFA authentication. The value is either the
	// serial number for a hardware device (such as GAHT12345678) or an Amazon Resource
	// Name (ARN) for a virtual device (such as arn:aws:iam::123456789012:mfa/user).
	// You can find the device for an IAM user by going to the AWS Management Console
	// and viewing the user's security credentials.
	//
	// The regex used to validated this parameter is a string of characters consisting
	// of upper- and lower-case alphanumeric characters with no spaces. You can
	// also include underscores or any of the following characters: =,.@:/-
	SerialNumber *string `min:"9" type:"string"`

	// The value provided by the MFA device, if MFA is required. If any policy requires
	// the IAM user to submit an MFA code, specify this value. If MFA authentication
	// is required, and the user does not provide a code when requesting a set of
	// temporary security credentials, the user will receive an "access denied"
	// response when requesting resources that require MFA authentication.
	//
	// The format for this parameter, as described by its regex pattern, is a sequence
	// of six numeric digits.
	TokenCode *string `min:"6" type:"string"`
	// contains filtered or unexported fields
}

Please also see https://docs.aws.amazon.com/goto/WebAPI/sts-2011-06-15/GetSessionTokenRequest

func (GetSessionTokenInput) GoString 

func (s GetSessionTokenInput) GoString() string

GoString returns the string representation

func (GetSessionTokenInput) String 

func (s GetSessionTokenInput) String() string

String returns the string representation

func (*GetSessionTokenInput) Validate 

func (s *GetSessionTokenInput) Validate() error

Validate inspects the fields of the type to determine if they are valid.

type GetSessionTokenOutput 

type GetSessionTokenOutput struct {

	// The temporary security credentials, which include an access key ID, a secret
	// access key, and a security (or session) token.
	//
	// Note: The size of the security token that STS APIs return is not fixed. We
	// strongly recommend that you make no assumptions about the maximum size. As
	// of this writing, the typical size is less than 4096 bytes, but that can vary.
	// Also, future updates to AWS might require larger sizes.
	Credentials *Credentials `type:"structure"`
	// contains filtered or unexported fields
}

Contains the response to a successful GetSessionToken request, including temporary AWS credentials that can be used to make AWS requests. Please also see https://docs.aws.amazon.com/goto/WebAPI/sts-2011-06-15/GetSessionTokenResponse

func (GetSessionTokenOutput) GoString 

func (s GetSessionTokenOutput) GoString() string

GoString returns the string representation

func (GetSessionTokenOutput) SDKResponseMetadata 

func (s GetSessionTokenOutput) SDKResponseMetadata() aws.Response

SDKResponseMetdata return sthe response metadata for the API.

func (GetSessionTokenOutput) String 

func (s GetSessionTokenOutput) String() string

String returns the string representation

type GetSessionTokenRequest 

type GetSessionTokenRequest struct {
	*aws.Request
	Input *GetSessionTokenInput
	Copy  func(*GetSessionTokenInput) GetSessionTokenRequest
}

GetSessionTokenRequest is a API request type for the GetSessionToken API operation.

func (GetSessionTokenRequest) Send 

func (r GetSessionTokenRequest) Send() (*GetSessionTokenOutput, error)

Send marshals and sends the GetSessionToken API request.

type STS 

type STS struct {
	*aws.Client
}

STS provides the API operation methods for making requests to AWS Security Token Service. See this package's package overview docs for details on the service.

STS methods are safe to use concurrently. It is not safe to modify mutate any of the struct's properties though.

func New 

func New(config aws.Config) *STS

New creates a new instance of the STS client with a config.

Example: 

// Create a STS client from just a config.
svc := sts.New(myConfig)

func (*STS) AssumeRoleRequest 

func (c *STS) AssumeRoleRequest(input *AssumeRoleInput) AssumeRoleRequest

AssumeRoleRequest returns a request value for making API operation for AWS Security Token Service.

Returns a set of temporary security credentials (consisting of an access key ID, a secret access key, and a security token) that you can use to access AWS resources that you might not normally have access to. Typically, you use AssumeRole for cross-account access or federation. For a comparison of AssumeRole with the other APIs that produce temporary credentials, see Requesting Temporary Security Credentials (http://docs.aws.amazon.com/IAM/latest/UserGuide/id_credentials_temp_request.html) and Comparing the AWS STS APIs (http://docs.aws.amazon.com/IAM/latest/UserGuide/id_credentials_temp_request.html#stsapi_comparison) in the IAM User Guide.

Important: You cannot call AssumeRole by using AWS root account credentials; access is denied. You must use credentials for an IAM user or an IAM role to call AssumeRole.

For cross-account access, imagine that you own multiple accounts and need to access resources in each account. You could create long-term credentials in each account to access those resources. However, managing all those credentials and remembering which one can access which account can be time consuming. Instead, you can create one set of long-term credentials in one account and then use temporary security credentials to access all the other accounts by assuming roles in those accounts. For more information about roles, see IAM Roles (Delegation and Federation) (http://docs.aws.amazon.com/IAM/latest/UserGuide/roles-toplevel.html) in the IAM User Guide.

For federation, you can, for example, grant single sign-on access to the AWS Management Console. If you already have an identity and authentication system in your corporate network, you don't have to recreate user identities in AWS in order to grant those user identities access to AWS. Instead, after a user has been authenticated, you call AssumeRole (and specify the role with the appropriate permissions) to get temporary security credentials for that user. With those temporary security credentials, you construct a sign-in URL that users can use to access the console. For more information, see Common Scenarios for Temporary Credentials (http://docs.aws.amazon.com/IAM/latest/UserGuide/id_credentials_temp.html#sts-introduction) in the IAM User Guide.

By default, the temporary security credentials created by AssumeRole last for one hour. However, you can use the optional DurationSeconds parameter to specify the duration of your session. You can provide a value from 900 seconds (15 minutes) up to the maximum session duration setting for the role. This setting can have a value from 1 hour to 12 hours. To learn how to view the maximum value for your role, see View the Maximum Session Duration Setting for a Role (http://docs.aws.amazon.com/IAM/latest/UserGuide/id_roles_use.html#id_roles_use_view-role-max-session) in the IAM User Guide. The maximum session duration limit applies when you use the AssumeRole* API operations or the assume-role* CLI operations but does not apply when you use those operations to create a console URL. For more information, see Using IAM Roles (http://docs.aws.amazon.com/IAM/latest/UserGuide/id_roles_use.html) in the IAM User Guide.

The temporary security credentials created by AssumeRole can be used to make API calls to any AWS service with the following exception: you cannot call the STS service's GetFederationToken or GetSessionToken APIs.

Optionally, you can pass an IAM access policy to this operation. If you choose not to pass a policy, the temporary security credentials that are returned by the operation have the permissions that are defined in the access policy of the role that is being assumed. If you pass a policy to this operation, the temporary security credentials that are returned by the operation have the permissions that are allowed by both the access policy of the role that is being assumed, and the policy that you pass. This gives you a way to further restrict the permissions for the resulting temporary security credentials. You cannot use the passed policy to grant permissions that are in excess of those allowed by the access policy of the role that is being assumed. For more information, see Permissions for AssumeRole, AssumeRoleWithSAML, and AssumeRoleWithWebIdentity (http://docs.aws.amazon.com/IAM/latest/UserGuide/id_credentials_temp_control-access_assumerole.html) in the IAM User Guide.

To assume a role, your AWS account must be trusted by the role. The trust relationship is defined in the role's trust policy when the role is created. That trust policy states which accounts are allowed to delegate access to this account's role.

The user who wants to access the role must also have permissions delegated from the role's administrator. If the user is in a different account than the role, then the user's administrator must attach a policy that allows the user to call AssumeRole on the ARN of the role in the other account. If the user is in the same account as the role, then you can either attach a policy to the user (identical to the previous different account user), or you can add the user as a principal directly in the role's trust policy. In this case, the trust policy acts as the only resource-based policy in IAM, and users in the same account as the role do not need explicit permission to assume the role. For more information about trust policies and resource-based policies, see IAM Policies (http://docs.aws.amazon.com/IAM/latest/UserGuide/access_policies.html) in the IAM User Guide.

Using MFA with AssumeRole

You can optionally include multi-factor authentication (MFA) information when you call AssumeRole. This is useful for cross-account scenarios in which you want to make sure that the user who is assuming the role has been authenticated using an AWS MFA device. In that scenario, the trust policy of the role being assumed includes a condition that tests for MFA authentication; if the caller does not include valid MFA information, the request to assume the role is denied. The condition in a trust policy that tests for MFA authentication might look like the following example.

"Condition": {"Bool": {"aws:MultiFactorAuthPresent": true}}

For more information, see Configuring MFA-Protected API Access (http://docs.aws.amazon.com/IAM/latest/UserGuide/MFAProtectedAPI.html) in the IAM User Guide guide.

To use MFA with AssumeRole, you pass values for the SerialNumber and TokenCode parameters. The SerialNumber value identifies the user's hardware or virtual MFA device. The TokenCode is the time-based one-time password (TOTP) that the MFA devices produces. 

// Example sending a request using the AssumeRoleRequest method.
req := client.AssumeRoleRequest(params)
resp, err := req.Send()
if err == nil {
    fmt.Println(resp)
}

Please also see https://docs.aws.amazon.com/goto/WebAPI/sts-2011-06-15/AssumeRole

Example (Shared00) 
package main

import (
	"fmt"

	"github.com/aws/aws-sdk-go-v2/aws"
	"github.com/aws/aws-sdk-go-v2/aws/awserr"
	"github.com/aws/aws-sdk-go-v2/aws/external"
	"github.com/aws/aws-sdk-go-v2/service/sts"
)

func main() {
	cfg, err := external.LoadDefaultAWSConfig()
	if err != nil {
		panic("failed to load config, " + err.Error())
	}

	svc := sts.New(cfg)
	input := &sts.AssumeRoleInput{
		DurationSeconds: aws.Int64(3600),
		ExternalId:      aws.String("123ABC"),
		Policy:          aws.String("{\"Version\":\"2012-10-17\",\"Statement\":[{\"Sid\":\"Stmt1\",\"Effect\":\"Allow\",\"Action\":\"s3:*\",\"Resource\":\"*\"}]}"),
		RoleArn:         aws.String("arn:aws:iam::123456789012:role/demo"),
		RoleSessionName: aws.String("Bob"),
	}

	req := svc.AssumeRoleRequest(input)
	result, err := req.Send()
	if err != nil {
		if aerr, ok := err.(awserr.Error); ok {
			switch aerr.Code() {
			case sts.ErrCodeMalformedPolicyDocumentException:
				fmt.Println(sts.ErrCodeMalformedPolicyDocumentException, aerr.Error())
			case sts.ErrCodePackedPolicyTooLargeException:
				fmt.Println(sts.ErrCodePackedPolicyTooLargeException, aerr.Error())
			case sts.ErrCodeRegionDisabledException:
				fmt.Println(sts.ErrCodeRegionDisabledException, aerr.Error())
			default:
				fmt.Println(aerr.Error())
			}
		} else {
			// Print the error, cast err to awserr.Error to get the Code and
			// Message from an error.
			fmt.Println(err.Error())
		}
		return
	}

	fmt.Println(result)
}

Output:

func (*STS) AssumeRoleWithSAMLRequest 

func (c *STS) AssumeRoleWithSAMLRequest(input *AssumeRoleWithSAMLInput) AssumeRoleWithSAMLRequest

AssumeRoleWithSAMLRequest returns a request value for making API operation for AWS Security Token Service.

Returns a set of temporary security credentials for users who have been authenticated via a SAML authentication response. This operation provides a mechanism for tying an enterprise identity store or directory to role-based AWS access without user-specific credentials or configuration. For a comparison of AssumeRoleWithSAML with the other APIs that produce temporary credentials, see Requesting Temporary Security Credentials (http://docs.aws.amazon.com/IAM/latest/UserGuide/id_credentials_temp_request.html) and Comparing the AWS STS APIs (http://docs.aws.amazon.com/IAM/latest/UserGuide/id_credentials_temp_request.html#stsapi_comparison) in the IAM User Guide.

The temporary security credentials returned by this operation consist of an access key ID, a secret access key, and a security token. Applications can use these temporary security credentials to sign calls to AWS services.

By default, the temporary security credentials created by AssumeRoleWithSAML last for one hour. However, you can use the optional DurationSeconds parameter to specify the duration of your session. Your role session lasts for the duration that you specify, or until the time specified in the SAML authentication response's SessionNotOnOrAfter value, whichever is shorter. You can provide a DurationSeconds value from 900 seconds (15 minutes) up to the maximum session duration setting for the role. This setting can have a value from 1 hour to 12 hours. To learn how to view the maximum value for your role, see View the Maximum Session Duration Setting for a Role (http://docs.aws.amazon.com/IAM/latest/UserGuide/id_roles_use.html#id_roles_use_view-role-max-session) in the IAM User Guide. The maximum session duration limit applies when you use the AssumeRole* API operations or the assume-role* CLI operations but does not apply when you use those operations to create a console URL. For more information, see Using IAM Roles (http://docs.aws.amazon.com/IAM/latest/UserGuide/id_roles_use.html) in the IAM User Guide.

The temporary security credentials created by AssumeRoleWithSAML can be used to make API calls to any AWS service with the following exception: you cannot call the STS service's GetFederationToken or GetSessionToken APIs.

Optionally, you can pass an IAM access policy to this operation. If you choose not to pass a policy, the temporary security credentials that are returned by the operation have the permissions that are defined in the access policy of the role that is being assumed. If you pass a policy to this operation, the temporary security credentials that are returned by the operation have the permissions that are allowed by the intersection of both the access policy of the role that is being assumed, and the policy that you pass. This means that both policies must grant the permission for the action to be allowed. This gives you a way to further restrict the permissions for the resulting temporary security credentials. You cannot use the passed policy to grant permissions that are in excess of those allowed by the access policy of the role that is being assumed. For more information, see Permissions for AssumeRole, AssumeRoleWithSAML, and AssumeRoleWithWebIdentity (http://docs.aws.amazon.com/IAM/latest/UserGuide/id_credentials_temp_control-access_assumerole.html) in the IAM User Guide.

Before your application can call AssumeRoleWithSAML, you must configure your SAML identity provider (IdP) to issue the claims required by AWS. Additionally, you must use AWS Identity and Access Management (IAM) to create a SAML provider entity in your AWS account that represents your identity provider, and create an IAM role that specifies this SAML provider in its trust policy.

Calling AssumeRoleWithSAML does not require the use of AWS security credentials. The identity of the caller is validated by using keys in the metadata document that is uploaded for the SAML provider entity for your identity provider.

Calling AssumeRoleWithSAML can result in an entry in your AWS CloudTrail logs. The entry includes the value in the NameID element of the SAML assertion. We recommend that you use a NameIDType that is not associated with any personally identifiable information (PII). For example, you could instead use the Persistent Identifier (urn:oasis:names:tc:SAML:2.0:nameid-format:persistent).

For more information, see the following resources:

Please also see https://docs.aws.amazon.com/goto/WebAPI/sts-2011-06-15/AssumeRoleWithSAML

func (*STS) AssumeRoleWithWebIdentityRequest 

func (c *STS) AssumeRoleWithWebIdentityRequest(input *AssumeRoleWithWebIdentityInput) AssumeRoleWithWebIdentityRequest

AssumeRoleWithWebIdentityRequest returns a request value for making API operation for AWS Security Token Service.

Returns a set of temporary security credentials for users who have been authenticated in a mobile or web application with a web identity provider, such as Amazon Cognito, Login with Amazon, Facebook, Google, or any OpenID Connect-compatible identity provider.

For mobile applications, we recommend that you use Amazon Cognito. You can use Amazon Cognito with the AWS SDK for iOS (http://aws.amazon.com/sdkforios/) and the AWS SDK for Android (http://aws.amazon.com/sdkforandroid/) to uniquely identify a user and supply the user with a consistent identity throughout the lifetime of an application.

To learn more about Amazon Cognito, see Amazon Cognito Overview (http://docs.aws.amazon.com/mobile/sdkforandroid/developerguide/cognito-auth.html#d0e840) in the AWS SDK for Android Developer Guide guide and Amazon Cognito Overview (http://docs.aws.amazon.com/mobile/sdkforios/developerguide/cognito-auth.html#d0e664) in the AWS SDK for iOS Developer Guide.

Calling AssumeRoleWithWebIdentity does not require the use of AWS security credentials. Therefore, you can distribute an application (for example, on mobile devices) that requests temporary security credentials without including long-term AWS credentials in the application, and without deploying server-based proxy services that use long-term AWS credentials. Instead, the identity of the caller is validated by using a token from the web identity provider. For a comparison of AssumeRoleWithWebIdentity with the other APIs that produce temporary credentials, see Requesting Temporary Security Credentials (http://docs.aws.amazon.com/IAM/latest/UserGuide/id_credentials_temp_request.html) and Comparing the AWS STS APIs (http://docs.aws.amazon.com/IAM/latest/UserGuide/id_credentials_temp_request.html#stsapi_comparison) in the IAM User Guide.

The temporary security credentials returned by this API consist of an access key ID, a secret access key, and a security token. Applications can use these temporary security credentials to sign calls to AWS service APIs.

By default, the temporary security credentials created by AssumeRoleWithWebIdentity last for one hour. However, you can use the optional DurationSeconds parameter to specify the duration of your session. You can provide a value from 900 seconds (15 minutes) up to the maximum session duration setting for the role. This setting can have a value from 1 hour to 12 hours. To learn how to view the maximum value for your role, see View the Maximum Session Duration Setting for a Role (http://docs.aws.amazon.com/IAM/latest/UserGuide/id_roles_use.html#id_roles_use_view-role-max-session) in the IAM User Guide. The maximum session duration limit applies when you use the AssumeRole* API operations or the assume-role* CLI operations but does not apply when you use those operations to create a console URL. For more information, see Using IAM Roles (http://docs.aws.amazon.com/IAM/latest/UserGuide/id_roles_use.html) in the IAM User Guide.

The temporary security credentials created by AssumeRoleWithWebIdentity can be used to make API calls to any AWS service with the following exception: you cannot call the STS service's GetFederationToken or GetSessionToken APIs.

Optionally, you can pass an IAM access policy to this operation. If you choose not to pass a policy, the temporary security credentials that are returned by the operation have the permissions that are defined in the access policy of the role that is being assumed. If you pass a policy to this operation, the temporary security credentials that are returned by the operation have the permissions that are allowed by both the access policy of the role that is being assumed, and the policy that you pass. This gives you a way to further restrict the permissions for the resulting temporary security credentials. You cannot use the passed policy to grant permissions that are in excess of those allowed by the access policy of the role that is being assumed. For more information, see Permissions for AssumeRole, AssumeRoleWithSAML, and AssumeRoleWithWebIdentity (http://docs.aws.amazon.com/IAM/latest/UserGuide/id_credentials_temp_control-access_assumerole.html) in the IAM User Guide.

Before your application can call AssumeRoleWithWebIdentity, you must have an identity token from a supported identity provider and create a role that the application can assume. The role that your application assumes must trust the identity provider that is associated with the identity token. In other words, the identity provider must be specified in the role's trust policy.

Calling AssumeRoleWithWebIdentity can result in an entry in your AWS CloudTrail logs. The entry includes the Subject (http://openid.net/specs/openid-connect-core-1_0.html#Claims) of the provided Web Identity Token. We recommend that you avoid using any personally identifiable information (PII) in this field. For example, you could instead use a GUID or a pairwise identifier, as suggested in the OIDC specification (http://openid.net/specs/openid-connect-core-1_0.html#SubjectIDTypes).

For more information about how to use web identity federation and the AssumeRoleWithWebIdentity API, see the following resources:

Please also see https://docs.aws.amazon.com/goto/WebAPI/sts-2011-06-15/AssumeRoleWithWebIdentity

Example (Shared00) 
package main

import (
	"fmt"

	"github.com/aws/aws-sdk-go-v2/aws"
	"github.com/aws/aws-sdk-go-v2/aws/awserr"
	"github.com/aws/aws-sdk-go-v2/aws/external"
	"github.com/aws/aws-sdk-go-v2/service/sts"
)

func main() {
	cfg, err := external.LoadDefaultAWSConfig()
	if err != nil {
		panic("failed to load config, " + err.Error())
	}

	svc := sts.New(cfg)
	input := &sts.AssumeRoleWithWebIdentityInput{
		DurationSeconds:  aws.Int64(3600),
		ProviderId:       aws.String("www.amazon.com"),
		RoleArn:          aws.String("arn:aws:iam::123456789012:role/FederatedWebIdentityRole"),
		RoleSessionName:  aws.String("app1"),
		WebIdentityToken: aws.String("Atza%7CIQEBLjAsAhRFiXuWpUXuRvQ9PZL3GMFcYevydwIUFAHZwXZXXXXXXXXJnrulxKDHwy87oGKPznh0D6bEQZTSCzyoCtL_8S07pLpr0zMbn6w1lfVZKNTBdDansFBmtGnIsIapjI6xKR02Yc_2bQ8LZbUXSGm6Ry6_BG7PrtLZtj_dfCTj92xNGed-CrKqjG7nPBjNIL016GGvuS5gSvPRUxWES3VYfm1wl7WTI7jn-Pcb6M-buCgHhFOzTQxod27L9CqnOLio7N3gZAGpsp6n1-AJBOCJckcyXe2c6uD0srOJeZlKUm2eTDVMf8IehDVI0r1QOnTV6KzzAI3OY87Vd_cVMQ"),
	}

	req := svc.AssumeRoleWithWebIdentityRequest(input)
	result, err := req.Send()
	if err != nil {
		if aerr, ok := err.(awserr.Error); ok {
			switch aerr.Code() {
			case sts.ErrCodeMalformedPolicyDocumentException:
				fmt.Println(sts.ErrCodeMalformedPolicyDocumentException, aerr.Error())
			case sts.ErrCodePackedPolicyTooLargeException:
				fmt.Println(sts.ErrCodePackedPolicyTooLargeException, aerr.Error())
			case sts.ErrCodeIDPRejectedClaimException:
				fmt.Println(sts.ErrCodeIDPRejectedClaimException, aerr.Error())
			case sts.ErrCodeIDPCommunicationErrorException:
				fmt.Println(sts.ErrCodeIDPCommunicationErrorException, aerr.Error())
			case sts.ErrCodeInvalidIdentityTokenException:
				fmt.Println(sts.ErrCodeInvalidIdentityTokenException, aerr.Error())
			case sts.ErrCodeExpiredTokenException:
				fmt.Println(sts.ErrCodeExpiredTokenException, aerr.Error())
			case sts.ErrCodeRegionDisabledException:
				fmt.Println(sts.ErrCodeRegionDisabledException, aerr.Error())
			default:
				fmt.Println(aerr.Error())
			}
		} else {
			// Print the error, cast err to awserr.Error to get the Code and
			// Message from an error.
			fmt.Println(err.Error())
		}
		return
	}

	fmt.Println(result)
}

Output:

func (*STS) DecodeAuthorizationMessageRequest 

func (c *STS) DecodeAuthorizationMessageRequest(input *DecodeAuthorizationMessageInput) DecodeAuthorizationMessageRequest

DecodeAuthorizationMessageRequest returns a request value for making API operation for AWS Security Token Service.

Decodes additional information about the authorization status of a request from an encoded message returned in response to an AWS request.

For example, if a user is not authorized to perform an action that he or she has requested, the request returns a Client.UnauthorizedOperation response (an HTTP 403 response). Some AWS actions additionally return an encoded message that can provide details about this authorization failure.

Only certain AWS actions return an encoded authorization message. The documentation for an individual action indicates whether that action returns an encoded message in addition to returning an HTTP code.

The message is encoded because the details of the authorization status can constitute privileged information that the user who requested the action should not see. To decode an authorization status message, a user must be granted permissions via an IAM policy to request the DecodeAuthorizationMessage (sts:DecodeAuthorizationMessage) action.

The decoded message includes the following type of information:

  • Whether the request was denied due to an explicit deny or due to the absence of an explicit allow. For more information, see Determining Whether a Request is Allowed or Denied (http://docs.aws.amazon.com/IAM/latest/UserGuide/reference_policies_evaluation-logic.html#policy-eval-denyallow) in the IAM User Guide.

  • The principal who made the request.

  • The requested action.

  • The requested resource.

  • The values of condition keys in the context of the user's request.

    // Example sending a request using the DecodeAuthorizationMessageRequest method. req := client.DecodeAuthorizationMessageRequest(params) resp, err := req.Send() if err == nil { fmt.Println(resp) }

Please also see https://docs.aws.amazon.com/goto/WebAPI/sts-2011-06-15/DecodeAuthorizationMessage

Example (Shared00) 
package main

import (
	"fmt"

	"github.com/aws/aws-sdk-go-v2/aws"
	"github.com/aws/aws-sdk-go-v2/aws/awserr"
	"github.com/aws/aws-sdk-go-v2/aws/external"
	"github.com/aws/aws-sdk-go-v2/service/sts"
)

func main() {
	cfg, err := external.LoadDefaultAWSConfig()
	if err != nil {
		panic("failed to load config, " + err.Error())
	}

	svc := sts.New(cfg)
	input := &sts.DecodeAuthorizationMessageInput{
		EncodedMessage: aws.String("<encoded-message>"),
	}

	req := svc.DecodeAuthorizationMessageRequest(input)
	result, err := req.Send()
	if err != nil {
		if aerr, ok := err.(awserr.Error); ok {
			switch aerr.Code() {
			case sts.ErrCodeInvalidAuthorizationMessageException:
				fmt.Println(sts.ErrCodeInvalidAuthorizationMessageException, aerr.Error())
			default:
				fmt.Println(aerr.Error())
			}
		} else {
			// Print the error, cast err to awserr.Error to get the Code and
			// Message from an error.
			fmt.Println(err.Error())
		}
		return
	}

	fmt.Println(result)
}

Output:

func (*STS) GetCallerIdentityRequest 

func (c *STS) GetCallerIdentityRequest(input *GetCallerIdentityInput) GetCallerIdentityRequest

GetCallerIdentityRequest returns a request value for making API operation for AWS Security Token Service.

Returns details about the IAM identity whose credentials are used to call the API. 

// Example sending a request using the GetCallerIdentityRequest method.
req := client.GetCallerIdentityRequest(params)
resp, err := req.Send()
if err == nil {
    fmt.Println(resp)
}

Please also see https://docs.aws.amazon.com/goto/WebAPI/sts-2011-06-15/GetCallerIdentity

Example (Shared00)

To get details about a calling IAM user

This example shows a request and response made with the credentials for a user named Alice in the AWS account 123456789012. 

package main

import (
	"fmt"

	"github.com/aws/aws-sdk-go-v2/aws/awserr"
	"github.com/aws/aws-sdk-go-v2/aws/external"
	"github.com/aws/aws-sdk-go-v2/service/sts"
)

func main() {
	cfg, err := external.LoadDefaultAWSConfig()
	if err != nil {
		panic("failed to load config, " + err.Error())
	}

	svc := sts.New(cfg)
	input := &sts.GetCallerIdentityInput{}

	req := svc.GetCallerIdentityRequest(input)
	result, err := req.Send()
	if err != nil {
		if aerr, ok := err.(awserr.Error); ok {
			switch aerr.Code() {
			default:
				fmt.Println(aerr.Error())
			}
		} else {
			// Print the error, cast err to awserr.Error to get the Code and
			// Message from an error.
			fmt.Println(err.Error())
		}
		return
	}

	fmt.Println(result)
}

Output:
Example (Shared01)

To get details about a calling user federated with AssumeRole

This example shows a request and response made with temporary credentials created by AssumeRole. The name of the assumed role is my-role-name, and the RoleSessionName is set to my-role-session-name. 

package main

import (
	"fmt"

	"github.com/aws/aws-sdk-go-v2/aws/awserr"
	"github.com/aws/aws-sdk-go-v2/aws/external"
	"github.com/aws/aws-sdk-go-v2/service/sts"
)

func main() {
	cfg, err := external.LoadDefaultAWSConfig()
	if err != nil {
		panic("failed to load config, " + err.Error())
	}

	svc := sts.New(cfg)
	input := &sts.GetCallerIdentityInput{}

	req := svc.GetCallerIdentityRequest(input)
	result, err := req.Send()
	if err != nil {
		if aerr, ok := err.(awserr.Error); ok {
			switch aerr.Code() {
			default:
				fmt.Println(aerr.Error())
			}
		} else {
			// Print the error, cast err to awserr.Error to get the Code and
			// Message from an error.
			fmt.Println(err.Error())
		}
		return
	}

	fmt.Println(result)
}

Output:
Example (Shared02)

To get details about a calling user federated with GetFederationToken

This example shows a request and response made with temporary credentials created by using GetFederationToken. The Name parameter is set to my-federated-user-name. 

package main

import (
	"fmt"

	"github.com/aws/aws-sdk-go-v2/aws/awserr"
	"github.com/aws/aws-sdk-go-v2/aws/external"
	"github.com/aws/aws-sdk-go-v2/service/sts"
)

func main() {
	cfg, err := external.LoadDefaultAWSConfig()
	if err != nil {
		panic("failed to load config, " + err.Error())
	}

	svc := sts.New(cfg)
	input := &sts.GetCallerIdentityInput{}

	req := svc.GetCallerIdentityRequest(input)
	result, err := req.Send()
	if err != nil {
		if aerr, ok := err.(awserr.Error); ok {
			switch aerr.Code() {
			default:
				fmt.Println(aerr.Error())
			}
		} else {
			// Print the error, cast err to awserr.Error to get the Code and
			// Message from an error.
			fmt.Println(err.Error())
		}
		return
	}

	fmt.Println(result)
}

Output:

func (*STS) GetFederationTokenRequest 

func (c *STS) GetFederationTokenRequest(input *GetFederationTokenInput) GetFederationTokenRequest

GetFederationTokenRequest returns a request value for making API operation for AWS Security Token Service.

Returns a set of temporary security credentials (consisting of an access key ID, a secret access key, and a security token) for a federated user. A typical use is in a proxy application that gets temporary security credentials on behalf of distributed applications inside a corporate network. Because you must call the GetFederationToken action using the long-term security credentials of an IAM user, this call is appropriate in contexts where those credentials can be safely stored, usually in a server-based application. For a comparison of GetFederationToken with the other APIs that produce temporary credentials, see Requesting Temporary Security Credentials (http://docs.aws.amazon.com/IAM/latest/UserGuide/id_credentials_temp_request.html) and Comparing the AWS STS APIs (http://docs.aws.amazon.com/IAM/latest/UserGuide/id_credentials_temp_request.html#stsapi_comparison) in the IAM User Guide.

If you are creating a mobile-based or browser-based app that can authenticate users using a web identity provider like Login with Amazon, Facebook, Google, or an OpenID Connect-compatible identity provider, we recommend that you use Amazon Cognito (http://aws.amazon.com/cognito/) or AssumeRoleWithWebIdentity. For more information, see Federation Through a Web-based Identity Provider (http://docs.aws.amazon.com/IAM/latest/UserGuide/id_credentials_temp_request.html#api_assumerolewithwebidentity).

The GetFederationToken action must be called by using the long-term AWS security credentials of an IAM user. You can also call GetFederationToken using the security credentials of an AWS root account, but we do not recommended it. Instead, we recommend that you create an IAM user for the purpose of the proxy application and then attach a policy to the IAM user that limits federated users to only the actions and resources that they need access to. For more information, see IAM Best Practices (http://docs.aws.amazon.com/IAM/latest/UserGuide/best-practices.html) in the IAM User Guide.

The temporary security credentials that are obtained by using the long-term credentials of an IAM user are valid for the specified duration, from 900 seconds (15 minutes) up to a maximium of 129600 seconds (36 hours). The default is 43200 seconds (12 hours). Temporary credentials that are obtained by using AWS root account credentials have a maximum duration of 3600 seconds (1 hour).

The temporary security credentials created by GetFederationToken can be used to make API calls to any AWS service with the following exceptions:

  • You cannot use these credentials to call any IAM APIs.

  • You cannot call any STS APIs except GetCallerIdentity.

Permissions

The permissions for the temporary security credentials returned by GetFederationToken are determined by a combination of the following:

  • The policy or policies that are attached to the IAM user whose credentials are used to call GetFederationToken.

  • The policy that is passed as a parameter in the call.

The passed policy is attached to the temporary security credentials that result from the GetFederationToken API call--that is, to the federated user. When the federated user makes an AWS request, AWS evaluates the policy attached to the federated user in combination with the policy or policies attached to the IAM user whose credentials were used to call GetFederationToken. AWS allows the federated user's request only when both the federated user and the IAM user are explicitly allowed to perform the requested action. The passed policy cannot grant more permissions than those that are defined in the IAM user policy.

A typical use case is that the permissions of the IAM user whose credentials are used to call GetFederationToken are designed to allow access to all the actions and resources that any federated user will need. Then, for individual users, you pass a policy to the operation that scopes down the permissions to a level that's appropriate to that individual user, using a policy that allows only a subset of permissions that are granted to the IAM user.

If you do not pass a policy, the resulting temporary security credentials have no effective permissions. The only exception is when the temporary security credentials are used to access a resource that has a resource-based policy that specifically allows the federated user to access the resource.

For more information about how permissions work, see Permissions for GetFederationToken (http://docs.aws.amazon.com/IAM/latest/UserGuide/id_credentials_temp_control-access_getfederationtoken.html). For information about using GetFederationToken to create temporary security credentials, see GetFederationToken—Federation Through a Custom Identity Broker (http://docs.aws.amazon.com/IAM/latest/UserGuide/id_credentials_temp_request.html#api_getfederationtoken). 

// Example sending a request using the GetFederationTokenRequest method.
req := client.GetFederationTokenRequest(params)
resp, err := req.Send()
if err == nil {
    fmt.Println(resp)
}

Please also see https://docs.aws.amazon.com/goto/WebAPI/sts-2011-06-15/GetFederationToken

Example (Shared00) 
package main

import (
	"fmt"

	"github.com/aws/aws-sdk-go-v2/aws"
	"github.com/aws/aws-sdk-go-v2/aws/awserr"
	"github.com/aws/aws-sdk-go-v2/aws/external"
	"github.com/aws/aws-sdk-go-v2/service/sts"
)

func main() {
	cfg, err := external.LoadDefaultAWSConfig()
	if err != nil {
		panic("failed to load config, " + err.Error())
	}

	svc := sts.New(cfg)
	input := &sts.GetFederationTokenInput{
		DurationSeconds: aws.Int64(3600),
		Name:            aws.String("Bob"),
		Policy:          aws.String("{\"Version\":\"2012-10-17\",\"Statement\":[{\"Sid\":\"Stmt1\",\"Effect\":\"Allow\",\"Action\":\"s3:*\",\"Resource\":\"*\"}]}"),
	}

	req := svc.GetFederationTokenRequest(input)
	result, err := req.Send()
	if err != nil {
		if aerr, ok := err.(awserr.Error); ok {
			switch aerr.Code() {
			case sts.ErrCodeMalformedPolicyDocumentException:
				fmt.Println(sts.ErrCodeMalformedPolicyDocumentException, aerr.Error())
			case sts.ErrCodePackedPolicyTooLargeException:
				fmt.Println(sts.ErrCodePackedPolicyTooLargeException, aerr.Error())
			case sts.ErrCodeRegionDisabledException:
				fmt.Println(sts.ErrCodeRegionDisabledException, aerr.Error())
			default:
				fmt.Println(aerr.Error())
			}
		} else {
			// Print the error, cast err to awserr.Error to get the Code and
			// Message from an error.
			fmt.Println(err.Error())
		}
		return
	}

	fmt.Println(result)
}

Output:

func (*STS) GetSessionTokenRequest 

func (c *STS) GetSessionTokenRequest(input *GetSessionTokenInput) GetSessionTokenRequest

GetSessionTokenRequest returns a request value for making API operation for AWS Security Token Service.

Returns a set of temporary credentials for an AWS account or IAM user. The credentials consist of an access key ID, a secret access key, and a security token. Typically, you use GetSessionToken if you want to use MFA to protect programmatic calls to specific AWS APIs like Amazon EC2 StopInstances. MFA-enabled IAM users would need to call GetSessionToken and submit an MFA code that is associated with their MFA device. Using the temporary security credentials that are returned from the call, IAM users can then make programmatic calls to APIs that require MFA authentication. If you do not supply a correct MFA code, then the API returns an access denied error. For a comparison of GetSessionToken with the other APIs that produce temporary credentials, see Requesting Temporary Security Credentials (http://docs.aws.amazon.com/IAM/latest/UserGuide/id_credentials_temp_request.html) and Comparing the AWS STS APIs (http://docs.aws.amazon.com/IAM/latest/UserGuide/id_credentials_temp_request.html#stsapi_comparison) in the IAM User Guide.

The GetSessionToken action must be called by using the long-term AWS security credentials of the AWS account or an IAM user. Credentials that are created by IAM users are valid for the duration that you specify, from 900 seconds (15 minutes) up to a maximum of 129600 seconds (36 hours), with a default of 43200 seconds (12 hours); credentials that are created by using account credentials can range from 900 seconds (15 minutes) up to a maximum of 3600 seconds (1 hour), with a default of 1 hour.

The temporary security credentials created by GetSessionToken can be used to make API calls to any AWS service with the following exceptions:

  • You cannot call any IAM APIs unless MFA authentication information is included in the request.

  • You cannot call any STS API exceptAssumeRole or GetCallerIdentity.

We recommend that you do not call GetSessionToken with root account credentials. Instead, follow our best practices (http://docs.aws.amazon.com/IAM/latest/UserGuide/best-practices.html#create-iam-users) by creating one or more IAM users, giving them the necessary permissions, and using IAM users for everyday interaction with AWS.

The permissions associated with the temporary security credentials returned by GetSessionToken are based on the permissions associated with account or IAM user whose credentials are used to call the action. If GetSessionToken is called using root account credentials, the temporary credentials have root account permissions. Similarly, if GetSessionToken is called using the credentials of an IAM user, the temporary credentials have the same permissions as the IAM user.

For more information about using GetSessionToken to create temporary credentials, go to Temporary Credentials for Users in Untrusted Environments (http://docs.aws.amazon.com/IAM/latest/UserGuide/id_credentials_temp_request.html#api_getsessiontoken) in the IAM User Guide. 

// Example sending a request using the GetSessionTokenRequest method.
req := client.GetSessionTokenRequest(params)
resp, err := req.Send()
if err == nil {
    fmt.Println(resp)
}

Please also see https://docs.aws.amazon.com/goto/WebAPI/sts-2011-06-15/GetSessionToken

Example (Shared00) 
package main

import (
	"fmt"

	"github.com/aws/aws-sdk-go-v2/aws"
	"github.com/aws/aws-sdk-go-v2/aws/awserr"
	"github.com/aws/aws-sdk-go-v2/aws/external"
	"github.com/aws/aws-sdk-go-v2/service/sts"
)

func main() {
	cfg, err := external.LoadDefaultAWSConfig()
	if err != nil {
		panic("failed to load config, " + err.Error())
	}

	svc := sts.New(cfg)
	input := &sts.GetSessionTokenInput{
		DurationSeconds: aws.Int64(3600),
		SerialNumber:    aws.String("YourMFASerialNumber"),
		TokenCode:       aws.String("123456"),
	}

	req := svc.GetSessionTokenRequest(input)
	result, err := req.Send()
	if err != nil {
		if aerr, ok := err.(awserr.Error); ok {
			switch aerr.Code() {
			case sts.ErrCodeRegionDisabledException:
				fmt.Println(sts.ErrCodeRegionDisabledException, aerr.Error())
			default:
				fmt.Println(aerr.Error())
			}
		} else {
			// Print the error, cast err to awserr.Error to get the Code and
			// Message from an error.
			fmt.Println(err.Error())
		}
		return
	}

	fmt.Println(result)
}

Output:

Source Files

View all Source files

Directories

Path Synopsis
Package stsiface provides an interface to enable mocking the AWS Security Token Service service client for testing your code.
 Package stsiface provides an interface to enable mocking the AWS Security Token Service service client for testing your code.

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