Amazon GameLift Service
API Reference (API Version 2015-10-01)


Retrieves the details for FlexMatch matchmaking rule sets. You can request all existing rule sets for the region, or provide a list of one or more rule set names. When requesting multiple items, use the pagination parameters to retrieve results as a set of sequential pages. If successful, a rule set is returned for each requested name.

Operations related to match configurations and rule sets include:

Request Syntax

{ "Limit": number, "Names": [ "string" ], "NextToken": "string" }

Request Parameters

For information about the parameters that are common to all actions, see Common Parameters.

The request accepts the following data in JSON format.


In the following list, the required parameters are described first.


Maximum number of results to return. Use this parameter with NextToken to get results as a set of sequential pages.

Type: Integer

Valid Range: Minimum value of 1. Maximum value of 10.

Required: No


Unique identifier for a matchmaking rule set. This name is used to identify the rule set associated with a matchmaking configuration.

Type: Array of strings

Array Members: Minimum number of 1 item. Maximum number of 10 items.

Length Constraints: Minimum length of 1. Maximum length of 128.

Pattern: [a-zA-Z0-9-\.]+

Required: No


Token that indicates the start of the next sequential page of results. Use the token that is returned with a previous call to this action. To start at the beginning of the result set, do not specify a value.

Type: String

Length Constraints: Minimum length of 1. Maximum length of 1024.

Required: No

Response Syntax

{ "NextToken": "string", "RuleSets": [ { "CreationTime": number, "RuleSetBody": "string", "RuleSetName": "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.


Collection of requested matchmaking rule set objects.

Type: Array of MatchmakingRuleSet objects


Token that indicates where to resume retrieving results on the next call to this action. If no token is returned, these results represent the end of the list.

Type: String

Length Constraints: Minimum length of 1. Maximum length of 1024.


For information about the errors that are common to all actions, see Common Errors.


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


One or more parameter values in the request are invalid. Correct the invalid parameter values before retrying.

HTTP Status Code: 400


A service resource associated with the request could not be found. Clients should not retry such requests.

HTTP Status Code: 400


The requested operation is not supported in the region specified.

HTTP Status Code: 400

See Also

For more information about using this API in one of the language-specific AWS SDKs, see the following: