> **Experimental**
>
> `@aws-cdk/aws-gamelift-alpha` is an [**experimental**](/stability) (alpha) package: its API may change in any release, without a major version bump.
# IMatchmakingConfiguration

Represents a Gamelift matchmaking configuration.

Extends: IMatchmakingConfiguration
Extends: IResource
Implemented by: MatchmakingConfigurationBase, QueuedMatchmakingConfiguration, StandaloneMatchmakingConfiguration

- Stability: [Experimental](/cdk/api/stability.html)
- Source: [`lib/matchmaking-configuration.ts`](https://github.com/aws/aws-cdk/blob/v2.275.0-alpha.0/packages/@aws-cdk/aws-gamelift-alpha/lib/matchmaking-configuration.ts#L30)

## Properties

- `env`: [ResourceEnvironment](/cdk/api/v2/docs/aws-cdk-lib.interfaces.ResourceEnvironment.html) — The environment this resource belongs to.

  For resources that are created and managed in a Stack (those created by
  creating new class instances like `new Role()`, `new Bucket()`, etc.), this
  is always the same as the environment of the stack they belong to.

  For referenced resources (those obtained from referencing methods like
  `Role.fromRoleArn()`, `Bucket.fromBucketName()`, etc.), they might be
  different than the stack they were imported into.

- `matchmakingConfigurationArn`: string — The ARN of the matchmaking configuration.

- `matchmakingConfigurationName`: string — The name of the matchmaking configuration.

- `node`: [Node](/cdk/api/v2/docs/constructs.Node.html) — The tree node.

- `notificationTarget`: [ITopic](/cdk/api/v2/docs/aws-cdk-lib.aws_sns.ITopic.html) — The notification target for matchmaking events.

- `stack`: [Stack](/cdk/api/v2/docs/aws-cdk-lib.Stack.html) — The stack in which this resource is defined.

## Methods

- `applyRemovalPolicy(policy: RemovalPolicy): void` — Apply the given removal policy to this resource.

  The Removal Policy controls what happens to this resource when it stops
  being managed by CloudFormation, either because you've removed it from the
  CDK application or because you've made a change that requires the resource
  to be replaced.

  The resource can be deleted (`RemovalPolicy.DESTROY`), or left in your AWS
  account for data recovery and cleanup later (`RemovalPolicy.RETAIN`).

- `metric(metricName: string, props?: MetricOptions): Metric` — Return the given named metric for this matchmaking configuration.

- `metricCurrentTickets(props?: MetricOptions): Metric` — Matchmaking requests currently being processed or waiting to be processed.

- `metricMatchesAccepted(props?: MetricOptions): Metric` — For matchmaking configurations that require acceptance, the potential matches that were accepted since the last report.

- `metricMatchesCreated(props?: MetricOptions): Metric` — Potential matches that were created since the last report.

- `metricMatchesPlaced(props?: MetricOptions): Metric` — Matches that were successfully placed into a game session since the last report.

- `metricMatchesRejected(props?: MetricOptions): Metric` — For matchmaking configurations that require acceptance, the potential matches that were rejected by at least one player since the last report.

- `metricPlayersStarted(props?: MetricOptions): Metric` — Players in matchmaking tickets that were added since the last report.

- `metricTimeToMatch(props?: MetricOptions): Metric` — For matchmaking requests that were put into a potential match before the last report, the amount of time between ticket creation and potential match creation.

  Units: seconds

- `with(...mixins: IMixin[]): IConstruct` — Applies one or more mixins to this construct.

  Mixins are applied in order. The list of constructs is captured at the
  start of the call, so constructs added by a mixin will not be visited.

  **Parameters**

  - `mixins` — The mixins to apply.

  **Returns:** This construct for chaining