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Description:

awssolutionsconstructs.awseventbridgestepfunctions 2.70.0

aws-eventbridge-stepfunctions module
---

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

Language
Package

Python
aws_solutions_constructs.aws_eventbridge_stepfunctions

Typescript
@aws-solutions-constructs/aws-eventbridge-stepfunctions

Java
software.amazon.awsconstructs.services.eventbridgestepfunctions

Overview
This AWS Solutions Construct implements an AWS Events rule and an AWS Step Functions State Machine
Here is a minimal deployable pattern definition:
Typescript
import { Construct } from 'constructs';
import { Stack, StackProps, Duration } from 'aws-cdk-lib';
import { EventbridgeToStepfunctions, EventbridgeToStepfunctionsProps } from '@aws-solutions-constructs/aws-eventbridge-stepfunctions';
import * as stepfunctions from 'aws-cdk-lib/aws-stepfunctions';
import * as events from 'aws-cdk-lib/aws-events';

const startState = new stepfunctions.Pass(this, 'StartState');

const constructProps: EventbridgeToStepfunctionsProps = {
stateMachineProps: {
definition: startState
},
eventRuleProps: {
schedule: events.Schedule.rate(Duration.minutes(5))
}
};

new EventbridgeToStepfunctions(this, 'test-eventbridge-stepfunctions-stack', constructProps);

Python
from aws_solutions_constructs.aws_eventbridge_stepfunctions import EventbridgeToStepfunctions, EventbridgeToStepfunctionsProps
from aws_cdk import (
aws_stepfunctions as stepfunctions,
aws_events as events,
Duration,
Stack
)
from constructs import Construct

startState = stepfunctions.Pass(self, 'StartState')

EventbridgeToStepfunctions(self, 'test-eventbridge-stepfunctions-stack',
state_machine_props=stepfunctions.StateMachineProps(
definition=startState
),
event_rule_props=events.RuleProps(
schedule=events.Schedule.rate(
Duration.minutes(5))
))

Java
import software.constructs.Construct;

import software.amazon.awscdk.Stack;
import software.amazon.awscdk.StackProps;
import software.amazon.awscdk.Duration;
import software.amazon.awscdk.services.events.*;
import software.amazon.awscdk.services.stepfunctions.*;
import software.amazon.awsconstructs.services.eventbridgestepfunctions.*;

final Pass startState = new Pass(this, "StartState");

new EventbridgeToStepfunctions(this,
"test-eventbridge-stepfunctions-stack",
new EventbridgeToStepfunctionsProps.Builder()
.stateMachineProps(new StateMachineProps.Builder()
.definition(startState)
.build())
.eventRuleProps(new RuleProps.Builder()
.schedule(Schedule.rate(Duration.minutes(5)))
.build())
.build());

Pattern Construct Props

Name
Type
Description

stateMachineProps
sfn.StateMachineProps
Optional user provided props to override the default props for sfn.StateMachine

existingEventBusInterface?
events.IEventBus
Optional user-provided custom EventBus for construct to use. Providing both this and eventBusProps results an error.

eventBusProps?
events.EventBusProps
Optional user-provided properties to override the default properties when creating a custom EventBus. Setting this value to {} will create a custom EventBus using all default properties. If neither this nor existingEventBusInterface is provided the construct will use the default EventBus. Providing both this and existingEventBusInterface results an error.

eventRuleProps
events.RuleProps
User provided eventRuleProps to override the defaults

createCloudWatchAlarms
boolean
Whether to create recommended CloudWatch alarms

logGroupProps?
logs.LogGroupProps
User provided props to override the default props for for the CloudWatchLogs LogGroup.

Pattern Properties

Name
Type
Description

eventBus?
events.IEventBus
Returns the instance of events.IEventBus used by the construct

eventsRule
events.Rule
Returns an instance of events.Rule created by the construct

stateMachine
sfn.StateMachine
Returns an instance of sfn.StateMachine created by the construct

stateMachineLogGroup
logs.ILogGroup
Returns an instance of the ILogGroup created by the construct for StateMachine

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 CloudWatch Events Rule

Grant least privilege permissions to CloudWatch Events to trigger the Lambda Function

AWS Step Function

Enable CloudWatch logging for API Gateway
Deploy best practices CloudWatch Alarms for the Step Function

Architecture

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