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Description:

awssolutionsconstructs.awskinesisstreamslambda 2.70.0

aws-kinesisstreams-lambda module
---

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

Language
Package

Python
aws_solutions_constructs.aws-kinesis-streams-lambda

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

Java
software.amazon.awsconstructs.services.kinesisstreamslambda

Overview
This AWS Solutions Construct deploys a Kinesis Stream and Lambda function with the appropriate resources/properties for interaction and security.
Here is a minimal deployable pattern definition:
Typescript
import { Construct } from 'constructs';
import { Stack, StackProps } from 'aws-cdk-lib';
import { KinesisStreamsToLambda } from '@aws-solutions-constructs/aws-kinesisstreams-lambda';
import * as lambda from 'aws-cdk-lib/aws-lambda';

new KinesisStreamsToLambda(this, 'KinesisToLambdaPattern', {
kinesisEventSourceProps: {
startingPosition: lambda.StartingPosition.TRIM_HORIZON,
batchSize: 1
},
lambdaFunctionProps: {
runtime: lambda.Runtime.NODEJS_16_X,
handler: 'index.handler',
code: lambda.Code.fromAsset(`lambda`)
}
});

Python
from aws_solutions_constructs.aws_kinesis_streams_lambda import KinesisStreamsToLambda
from aws_cdk import (
aws_lambda as _lambda,
aws_lambda_event_sources as sources,
aws_kinesis as kinesis,
Stack
)
from constructs import Construct

KinesisStreamsToLambda(self, 'KinesisToLambdaPattern',
kinesis_event_source_props=sources.KinesisEventSourceProps(
starting_position=_lambda.StartingPosition.TRIM_HORIZON,
batch_size=1
),
lambda_function_props=_lambda.FunctionProps(
runtime=_lambda.Runtime.PYTHON_3_9,
handler='index.handler',
code=_lambda.Code.from_asset(
'lambda')
)
)

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.eventsources.*;
import software.amazon.awscdk.services.lambda.Runtime;
import software.amazon.awsconstructs.services.kinesisstreamslambda.*;

new KinesisStreamsToLambda(this, "KinesisToLambdaPattern", new KinesisStreamsToLambdaProps.Builder()
.kinesisEventSourceProps(new KinesisEventSourceProps.Builder()
.startingPosition(StartingPosition.TRIM_HORIZON)
.batchSize(1)
.build())
.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
User provided props to override the default props for the Lambda function.

kinesisStreamProps?
kinesis.StreamProps
Optional user-provided props to override the default props for the Kinesis stream.

existingStreamObj?
kinesis.Stream
Existing instance of Kinesis Stream, providing both this and kinesisStreamProps will cause an error.

kinesisEventSourceProps?
aws-lambda-event-sources.KinesisEventSourceProps
Optional user-provided props to override the default props for the Lambda event source mapping.

createCloudWatchAlarms
boolean
Whether to create recommended CloudWatch alarms

Pattern Properties

Name
Type
Description

kinesisStream
kinesis.Stream
Returns an instance of the Kinesis stream created by the pattern.

lambdaFunction
lambda.Function
Returns an instance of the Lambda function created by the pattern.

kinesisStreamRole
iam.Role
Returns an instance of the iam.Role created by the construct for Kinesis stream.

cloudwatchAlarms?
cloudwatch.Alarm[]
Returns a list of cloudwatch.Alarm created by the construct

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

Configure least privilege access IAM role for Kinesis Stream
Enable server-side encryption for Kinesis Stream using AWS Managed KMS Key
Deploy best practices CloudWatch Alarms for the Kinesis Stream

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

Enable Failure-Handling features like enable bisect on function Error, set defaults for Maximum Record Age (24 hours) & Maximum Retry Attempts (500) and deploy SQS dead-letter queue as destination on failure

Set Environment Variables

AWS_NODEJS_CONNECTION_REUSE_ENABLED (for Node 10.x and higher functions)

Architecture

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