import { Command as $Command } from "@aws-sdk/smithy-client"; import { Handler, HttpHandlerOptions as __HttpHandlerOptions, MetadataBearer as __MetadataBearer, MiddlewareStack } from "@aws-sdk/types"; import { GetFederationTokenRequest, GetFederationTokenResponse } from "../models/models_0"; import { ServiceInputTypes, ServiceOutputTypes, STSClientResolvedConfig } from "../STSClient"; export interface GetFederationTokenCommandInput extends GetFederationTokenRequest { } export interface GetFederationTokenCommandOutput extends GetFederationTokenResponse, __MetadataBearer { } /** *

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. You must call the GetFederationToken operation * using the long-term security credentials of an IAM user. As a result, 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 API operations that produce temporary credentials, see Requesting Temporary Security * Credentials and Comparing the * Amazon Web Services STS API operations in the IAM User Guide.

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You can create 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. In this case, we recommend that you use Amazon Cognito or * AssumeRoleWithWebIdentity. For more information, see Federation Through a Web-based Identity Provider in the * IAM User Guide.

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You can also call GetFederationToken using the security credentials of an * Amazon Web Services account root user, but we do not recommend it. Instead, we recommend that you create * an IAM user for the purpose of the proxy application. Then attach a policy to the IAM * user that limits federated users to only the actions and resources that they need to * access. For more information, see IAM Best Practices in the * IAM User Guide.

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* Session duration *

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The temporary credentials are valid for the specified duration, from 900 seconds (15 * minutes) up to a maximum of 129,600 seconds (36 hours). The default session duration is * 43,200 seconds (12 hours). Temporary credentials obtained by using the Amazon Web Services account root * user credentials have a maximum duration of 3,600 seconds (1 hour).

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* Permissions *

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You can use the temporary credentials created by GetFederationToken in any * Amazon Web Services service except the following:

* *

You must pass an inline or managed session policy to * this operation. You can pass a single JSON policy document to use as an inline session * policy. You can also specify up to 10 managed policies to use as managed session policies. * The plaintext that you use for both inline and managed session policies can't exceed 2,048 * characters.

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Though the session policy parameters are optional, if you do not pass a policy, then the * resulting federated user session has no permissions. When you pass session policies, the * session permissions are the intersection of the IAM user policies and the session * policies that you pass. This gives you a way to further restrict the permissions for a * federated user. You cannot use session policies to grant more permissions than those that * are defined in the permissions policy of the IAM user. For more information, see Session * Policies in the IAM User Guide. For information about * using GetFederationToken to create temporary security credentials, see GetFederationToken—Federation Through a Custom Identity Broker.

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You can use the credentials to access a resource that has a resource-based policy. If * that policy specifically references the federated user session in the * Principal element of the policy, the session has the permissions allowed by * the policy. These permissions are granted in addition to the permissions granted by the * session policies.

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* Tags *

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(Optional) You can pass tag key-value pairs to your session. These are called session * tags. For more information about session tags, see Passing Session Tags in STS in the * IAM User Guide.

* *

You can create 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. In this case, we recommend that you use Amazon Cognito or * AssumeRoleWithWebIdentity. For more information, see Federation Through a Web-based Identity Provider in the * IAM User Guide.

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An administrator must grant you the permissions necessary to pass session tags. The * administrator can also create granular permissions to allow you to pass only specific * session tags. For more information, see Tutorial: Using Tags * for Attribute-Based Access Control in the * IAM User Guide.

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Tag key–value pairs are not case sensitive, but case is preserved. This means that you * cannot have separate Department and department tag keys. Assume * that the user that you are federating has the * Department=Marketing tag and you pass the * department=engineering session tag. Department * and department are not saved as separate tags, and the session tag passed in * the request takes precedence over the user tag.

* @example * Use a bare-bones client and the command you need to make an API call. * ```javascript * import { STSClient, GetFederationTokenCommand } from "@aws-sdk/client-sts"; // ES Modules import * // const { STSClient, GetFederationTokenCommand } = require("@aws-sdk/client-sts"); // CommonJS import * const client = new STSClient(config); * const command = new GetFederationTokenCommand(input); * const response = await client.send(command); * ``` * * @see {@link GetFederationTokenCommandInput} for command's `input` shape. * @see {@link GetFederationTokenCommandOutput} for command's `response` shape. * @see {@link STSClientResolvedConfig | config} for STSClient's `config` shape. * */ export declare class GetFederationTokenCommand extends $Command { readonly input: GetFederationTokenCommandInput; constructor(input: GetFederationTokenCommandInput); /** * @internal */ resolveMiddleware(clientStack: MiddlewareStack, configuration: STSClientResolvedConfig, options?: __HttpHandlerOptions): Handler; private serialize; private deserialize; }