AWS Fundamentals Logo
AWS Fundamentals
L1 ConstructAWS::Lambda::Url

CfnUrl

The `AWS::Lambda::Url` resource creates a function URL with the specified configuration parameters. A [function URL](https://docs.aws.amazon.com/lambda/latest/dg/lambda-urls.html) is a dedicated HTTP(S) endpoint that you can use to invoke your function.

Import

import { CfnUrl } from 'aws-cdk-lib/aws-lambda';

Or use the module namespace:

import * as lambda from 'aws-cdk-lib/aws-lambda';
// lambda.CfnUrl

Properties

Configuration passed to the constructor as CfnUrlProps.

authTypeRequired
string

The type of authentication that your function URL uses. Set to `AWS_IAM` if you want to restrict access to authenticated users only. Set to `NONE` if you want to bypass IAM authentication to create a public endpoint. For more information, see [Security and auth model for Lambda function URLs](https://docs.aws.amazon.com/lambda/latest/dg/urls-auth.html) .

targetFunctionArnRequired
string | IFunctionRef

The name of the Lambda function. **Name formats** - *Function name* - `my-function` . - *Function ARN* - `lambda: : :function:my-function` . - *Partial ARN* - `:function:my-function` . The length constraint applies only to the full ARN. If you specify only the function name, it is limited to 64 characters in length.

corsOptional
IResolvable | CorsProperty

The [Cross-Origin Resource Sharing (CORS)](https://docs.aws.amazon.com/https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS) settings for your function URL.

invokeModeOptional
string

Use one of the following options:. - `BUFFERED` – This is the default option. Lambda invokes your function using the `Invoke` API operation. Invocation results are available when the payload is complete. The maximum payload size is 6 MB. - `RESPONSE_STREAM` – Your function streams payload results as they become available. Lambda invokes your function using the `InvokeWithResponseStream` API operation. The maximum response payload size is 200 MB.

qualifierOptional
string

The alias name.

CloudFormation Resource

This L1 construct maps directly to the following CloudFormation resource type.

AWS::Lambda::UrlView in CloudFormation Explorer

Get the AWS Lambda Cheat Sheet

Everything you need to know about AWS Lambda on one page. HD quality, print-friendly.

Download Free Infographic

Quick Facts

LevelL1 (CloudFormation)
Moduleaws-lambda
CFN TypeAWS::Lambda::Url
Properties5

Related Constructs

Explore This Service

External Links