# CfnAliasPropsMixin

The `AWS::Lambda::Alias` resource creates an [alias](https://docs.aws.amazon.com/lambda/latest/dg/configuration-aliases.html) for a Lambda function version. Use aliases to provide clients with a function identifier that you can update to invoke a different version.

You can also map an alias to split invocation requests between two versions. Use the `RoutingConfig` parameter to specify a second version and the percentage of invocation requests that it receives.

Extends: Mixin › CfnAliasPropsMixin
Implements: IMixin

- CloudFormation: [`AWS::Lambda::Alias`](https://docs.aws.amazon.com/AWSCloudFormation/latest/TemplateReference/aws-resource-lambda-alias.html)
- Source: Generated code
- Type last changed: v2.269.0 · 16 Sep 2026

## Initializer

```ts
new CfnAliasPropsMixin(props: CfnAliasMixinProps, options?: CfnPropertyMixinOptions)
```

## Methods

- `applyTo(construct: IConstruct): void` — Apply the mixin properties to the construct.

- `isMixin(x: any): boolean` (static) — Checks if `x` is a Mixin.

  **Parameters**

  - `x` — Any object.

  **Returns:** true if `x` is an object created from a class which extends `Mixin`.

- `supports(construct: IConstruct): boolean` — Check if this mixin supports the given construct.