# CreateAlias
**This API works with the following fleet types:** EC2, Anywhere, Container
Creates an alias for a fleet. In most situations, you can use an alias ID in place of a fleet ID. An alias provides a level of abstraction for a fleet that is useful when redirecting player traffic from one fleet to another, such as when updating your game build.
Amazon GameLift Servers supports two types of routing strategies for aliases: simple and terminal. A simple alias points to an active fleet. A terminal alias is used to display messaging or link to a URL instead of routing players to an active fleet. For example, you might use a terminal alias when a game version is no longer supported and you want to direct players to an upgrade site.
To create a fleet alias, specify an alias name, routing strategy, and optional description. Each simple alias can point to only one fleet, but a fleet can have multiple aliases. If successful, a new alias record is returned, including an alias ID and an ARN. You can reassign an alias to another fleet by calling `UpdateAlias`.
**Related actions**
[All APIs by task](https://docs.aws.amazon.com/gamelift/latest/developerguide/reference-awssdk.html#reference-awssdk-resources-fleets)
## Request Syntax
```
{
"Description": "string",
"Name": "string",
"RoutingStrategy": {
"FleetId": "string",
"Message": "string",
"Type": "string"
},
"Tags": [
{
"Key": "string",
"Value": "string"
}
]
}
```
## Request Parameters
For information about the parameters that are common to all actions, see [Common Parameters](CommonParameters.md).
The request accepts the following data in JSON format.
**Note**
In the following list, the required parameters are described first.
** [Name](#API_CreateAlias_RequestSyntax) **
A descriptive label that is associated with an alias. Alias names do not need to be unique.
Type: String
Length Constraints: Minimum length of 1. Maximum length of 1024.
Pattern: `.*\S.*`
Required: Yes
** [RoutingStrategy](#API_CreateAlias_RequestSyntax) **
The routing configuration, including routing type and fleet target, for the alias.
Type: [RoutingStrategy](API_RoutingStrategy.md) object
Required: Yes
** [Description](#API_CreateAlias_RequestSyntax) **
A human-readable description of the alias.
Type: String
Length Constraints: Minimum length of 1. Maximum length of 1024.
Required: No
** [Tags](#API_CreateAlias_RequestSyntax) **
A list of labels to assign to the new alias resource. Tags are developer-defined key-value pairs. Tagging AWS resources are useful for resource management, access management and cost allocation. For more information, see [ Tagging AWS Resources](https://docs.aws.amazon.com/general/latest/gr/aws_tagging.html) in the * AWS General Reference*.
Type: Array of [Tag](API_Tag.md) objects
Array Members: Minimum number of 0 items. Maximum number of 200 items.
Required: No
## Response Syntax
```
{
"Alias": {
"AliasArn": "string",
"AliasId": "string",
"CreationTime": number,
"Description": "string",
"LastUpdatedTime": number,
"Name": "string",
"RoutingStrategy": {
"FleetId": "string",
"Message": "string",
"Type": "string"
}
}
}
```
## Response Elements
If the action is successful, the service sends back an HTTP 200 response.
The following data is returned in JSON format by the service.
** [Alias](#API_CreateAlias_ResponseSyntax) **
The newly created alias resource.
Type: [Alias](API_Alias.md) object
## Errors
For information about the errors that are common to all actions, see [Common Error Types](CommonErrors.md).
** ConflictException **
The requested operation would cause a conflict with the current state of a service resource associated with the request. Resolve the conflict before retrying this request.
HTTP Status Code: 400
** InternalServiceException **
The service encountered an unrecoverable internal failure while processing the request. Clients can retry such requests immediately or after a waiting period.
HTTP Status Code: 500
** InvalidRequestException **
One or more parameter values in the request are invalid. Correct the invalid parameter values before retrying.
HTTP Status Code: 400
** LimitExceededException **
The requested operation would cause the resource to exceed the allowed service limit. Resolve the issue before retrying.
HTTP Status Code: 400
** TaggingFailedException **
The requested tagging operation did not succeed. This may be due to invalid tag format or the maximum tag limit may have been exceeded. Resolve the issue before retrying.
HTTP Status Code: 400
** UnauthorizedException **
The client failed authentication. Clients should not retry such requests.
HTTP Status Code: 400
## See Also
For more information about using this API in one of the language-specific AWS SDKs, see the following:
+ [AWS Command Line Interface V2](https://docs.aws.amazon.com/goto/cli2/gamelift-2015-10-01/CreateAlias)
+ [AWS SDK for .NET V4](https://docs.aws.amazon.com/goto/DotNetSDKV4/gamelift-2015-10-01/CreateAlias)
+ [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/gamelift-2015-10-01/CreateAlias)
+ [AWS SDK for Go v2](https://docs.aws.amazon.com/goto/SdkForGoV2/gamelift-2015-10-01/CreateAlias)
+ [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/gamelift-2015-10-01/CreateAlias)
+ [AWS SDK for JavaScript V3](https://docs.aws.amazon.com/goto/SdkForJavaScriptV3/gamelift-2015-10-01/CreateAlias)
+ [AWS SDK for Kotlin](https://docs.aws.amazon.com/goto/SdkForKotlin/gamelift-2015-10-01/CreateAlias)
+ [AWS SDK for PHP V3](https://docs.aws.amazon.com/goto/SdkForPHPV3/gamelift-2015-10-01/CreateAlias)
+ [AWS SDK for Python](https://docs.aws.amazon.com/goto/boto3/gamelift-2015-10-01/CreateAlias)
+ [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/gamelift-2015-10-01/CreateAlias)