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Description:

awssolutionsconstructs.awss3lambda 2.70.0

aws-s3-lambda module
---

Reference Documentation:
https://docs.aws.amazon.com/solutions/latest/constructs/

Language
Package

Python
aws_solutions_constructs.aws_s3_lambda

Typescript
@aws-solutions-constructs/aws-s3-lambda

Java
software.amazon.awsconstructs.services.s3lambda

Overview
This AWS Solutions Construct implements an Amazon S3 bucket connected to an AWS Lambda function.
Here is a minimal deployable pattern definition:
Typescript
import { Construct } from 'constructs';
import { Stack, StackProps } from 'aws-cdk-lib';
import * as lambda from "aws-cdk-lib/aws-lambda";
import { S3ToLambdaProps, S3ToLambda } from '@aws-solutions-constructs/aws-s3-lambda';

new S3ToLambda(this, 'test-s3-lambda', {
lambdaFunctionProps: {
code: lambda.Code.fromAsset(`lambda`),
runtime: lambda.Runtime.NODEJS_16_X,
handler: 'index.handler'
},
});

Python
from aws_solutions_constructs.aws_s3_lambda import S3ToLambda
from aws_cdk import (
aws_lambda as _lambda,
Stack
)
from constructs import Construct

S3ToLambda(self, 'test_s3_lambda',
lambda_function_props=_lambda.FunctionProps(
code=_lambda.Code.from_asset('lambda'),
runtime=_lambda.Runtime.PYTHON_3_9,
handler='index.handler'
)
)

Java
import software.constructs.Construct;

import software.amazon.awscdk.Stack;
import software.amazon.awscdk.StackProps;
import software.amazon.awscdk.services.lambda.*;
import software.amazon.awscdk.services.lambda.Runtime;
import software.amazon.awsconstructs.services.s3lambda.*;

new S3ToLambda(this, "test-s3-lambda'", new S3ToLambdaProps.Builder()
.lambdaFunctionProps(new FunctionProps.Builder()
.runtime(Runtime.NODEJS_16_X)
.code(Code.fromAsset("lambda"))
.handler("index.handler")
.build())
.build());

Pattern Construct Props

Name
Type
Description

existingLambdaObj?
lambda.Function
Existing instance of Lambda Function object, providing both this and lambdaFunctionProps will cause an error.

lambdaFunctionProps?
lambda.FunctionProps
Optional user provided props to override the default props for the Lambda function.

existingBucketObj?
s3.Bucket
Existing instance of S3 Bucket object. If this is provided, then also providing bucketProps is an error.

bucketProps?
s3.BucketProps
Optional user provided props to override the default props for the S3 Bucket.

s3EventSourceProps?
S3EventSourceProps
Optional user provided props to override the default props for S3EventSourceProps

loggingBucketProps?
s3.BucketProps
Optional user provided props to override the default props for the S3 Logging Bucket.

logS3AccessLogs?
boolean
Whether to turn on Access Logging for the S3 bucket. Creates an S3 bucket with associated storage costs for the logs. Enabling Access Logging is a best practice. default - true

Pattern Properties

Name
Type
Description

lambdaFunction
lambda.Function
Returns an instance of the lambda.Function created by the construct

s3Bucket?
s3.Bucket
Returns an instance of the s3.Bucket created by the construct

s3LoggingBucket?
s3.Bucket
Returns an instance of s3.Bucket created by the construct as the logging bucket for the primary bucket.

s3BucketInterface
s3.IBucket
Returns an instance of s3.IBucket created by the construct

Default settings
Out of the box implementation of the Construct without any override will set the following defaults:
Amazon S3 Bucket

Configure Access logging for S3 Bucket
Enable server-side encryption for S3 Bucket using AWS managed KMS Key
Enforce encryption of data in transit
Turn on the versioning for S3 Bucket
Don't allow public access for S3 Bucket
Retain the S3 Bucket when deleting the CloudFormation stack
Applies Lifecycle rule to move noncurrent object versions to Glacier storage after 90 days

AWS Lambda Function

Configure limited privilege access IAM role for Lambda function

Enable reusing connections with Keep-Alive for NodeJs Lambda function

Enable X-Ray Tracing

Set Environment Variables

AWS_NODEJS_CONNECTION_REUSE_ENABLED (for Node 10.x and higher functions)

Architecture

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