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v1

latestOpenAPI 3.0.0Apache 2.0 License2026-07-1458293303.1 KB

Assigns new properties to a user. Parameters you pass modify any or all of the following: the home directory, role, and policy for the UserName and ServerId you specify.

The response returns the ServerId and the UserName for the updated user.

post/#X-Amz-Target=TransferService.UpdateUser

Headers

X-Amz-Target'TransferService.UpdateUser' required

Request body

HomeDirectorystring
<p>The landing directory (folder) for a user when they log in to the server using the client.</p> <p>A <code>HomeDirectory</code> example is <code>/bucket_name/home/mydirectory</code>.</p>
HomeDirectoryType'PATH' | 'LOGICAL'

The type of landing directory (folder) that you want your users' home directory to be when they log in to the server. If you set it to <code>PATH</code>, the user will see the absolute Amazon S3 bucket or EFS paths as is in their file transfer protocol clients. If you set it <code>LOGICAL</code>, you need to provide mappings in the <code>HomeDirectoryMappings</code> for how you want to make Amazon S3 or Amazon EFS paths visible to your users.

Policystring
<p>A session policy for your user so that you can use the same Identity and Access Management (IAM) role across multiple users. This policy scopes down a user's access to portions of their Amazon S3 bucket. Variables that you can use inside this policy include <code>${Transfer:UserName}</code>, <code>${Transfer:HomeDirectory}</code>, and <code>${Transfer:HomeBucket}</code>.</p> <note> <p>This policy applies only when the domain of <code>ServerId</code> is Amazon S3. Amazon EFS does not use session policies.</p> <p>For session policies, Transfer Family stores the policy as a JSON blob, instead of the Amazon Resource Name (ARN) of the policy. You save the policy as a JSON blob and pass it in the <code>Policy</code> argument.</p> <p>For an example of a session policy, see <a href="https://docs.aws.amazon.com/transfer/latest/userguide/session-policy">Creating a session policy</a>.</p> <p>For more information, see <a href="https://docs.aws.amazon.com/STS/latest/APIReference/API_AssumeRole.html">AssumeRole</a> in the <i>Amazon Web Services Security Token Service API Reference</i>.</p> </note>
Rolestring

The Amazon Resource Name (ARN) of the Identity and Access Management (IAM) role that controls your users' access to your Amazon S3 bucket or Amazon EFS file system. The policies attached to this role determine the level of access that you want to provide your users when transferring files into and out of your Amazon S3 bucket or Amazon EFS file system. The IAM role should also contain a trust relationship that allows the server to access your resources when servicing your users' transfer requests.

ServerIdstring required

A system-assigned unique identifier for a server instance that the user account is assigned to.

UserNamestring required

A unique string that identifies a user and is associated with a server as specified by the <code>ServerId</code>. This user name must be a minimum of 3 and a maximum of 100 characters long. The following are valid characters: a-z, A-Z, 0-9, underscore '_', hyphen '-', period '.', and at sign '@'. The user name can't start with a hyphen, period, or at sign.

Response

Success

ServerIdstring required

A system-assigned unique identifier for a server instance that the user account is assigned to.

UserNamestring required

The unique identifier for a user that is assigned to a server instance that was specified in the request.