# Create an alias for a Lambda function You can create aliases for your Lambda function. A Lambda alias is a pointer to a function version that you can update. The function's users can access the function version using the alias Amazon Resource Name (ARN). When you deploy a new version, you can update the alias to use the new version, or split traffic between two versions. ------ #### [ Console ] **To create an alias using the console** 1. Open the [Functions page](https://console.aws.amazon.com/lambda/home#/functions) of the Lambda console. 1. Choose a function. 1. Choose **Aliases** and then choose **Create alias**. 1. On the **Create alias** page, do the following: 1. Enter a **Name** for the alias. 1. (Optional) Enter a **Description** for the alias. 1. For **Version**, choose a function version that you want the alias to point to. 1. (Optional) To configure routing on the alias, expand **Weighted alias**. For more information, see [Implement Lambda canary deployments using a weighted alias](configuring-alias-routing.md). 1. Choose **Save**. ------ #### [ AWS CLI ] To create an alias using the AWS Command Line Interface (AWS CLI), use the [create-alias](https://awscli.amazonaws.com/v2/documentation/api/latest/reference/lambda/create-alias.html) command. ``` aws lambda create-alias \ --function-name {{my-function}} \ --name {{alias-name}} \ --function-version {{version-number}} \ --description " " ``` To change an alias to point a new version of the function, use the [update-alias](https://awscli.amazonaws.com/v2/documentation/api/latest/reference/lambda/update-alias.html) command. ``` aws lambda update-alias \ --function-name {{my-function}} \ --name {{alias-name}} \ --function-version {{version-number}} ``` To delete an alias, use the [delete-alias](https://awscli.amazonaws.com/v2/documentation/api/latest/reference/lambda/delete-alias.html) command. ``` aws lambda delete-alias \ --function-name {{my-function}} \ --name {{alias-name}} ``` The AWS CLI commands in the preceding steps correspond to the following Lambda API operations: + [CreateAlias](https://docs.aws.amazon.com/lambda/latest/api/API_CreateAlias.html) + [UpdateAlias](https://docs.aws.amazon.com/lambda/latest/api/API_UpdateAlias.html) + [DeleteAlias](https://docs.aws.amazon.com/lambda/latest/api/API_DeleteAlias.html) ------