// The code below shows an example of how to instantiate this type.
// The values are placeholders you should change.
import * as stepfunctions_tasks from '@aws-cdk/aws-stepfunctions-tasks';
const dynamoProjectionExpression = new stepfunctions_tasks.DynamoProjectionExpression();

// The code below shows an example of how to instantiate this type.
// The values are placeholders you should change.
import * as lambda from '@aws-cdk/aws-lambda';
import * as stepfunctions from '@aws-cdk/aws-stepfunctions';
import * as stepfunctions_tasks from '@aws-cdk/aws-stepfunctions-tasks';

declare const function_: lambda.Function;
declare const taskInput: stepfunctions.TaskInput;
const runLambdaTask = new stepfunctions_tasks.RunLambdaTask(function_, /* all optional props */ {
  clientContext: 'clientContext',
  integrationPattern: stepfunctions.ServiceIntegrationPattern.FIRE_AND_FORGET,
  invocationType: stepfunctions_tasks.InvocationType.REQUEST_RESPONSE,
  payload: taskInput,
  qualifier: 'qualifier',
});

// The code below shows an example of how to instantiate this type.
// The values are placeholders you should change.
import * as sqs from '@aws-cdk/aws-sqs';
import * as stepfunctions from '@aws-cdk/aws-stepfunctions';
import * as stepfunctions_tasks from '@aws-cdk/aws-stepfunctions-tasks';
import * as cdk from '@aws-cdk/core';

declare const queue: sqs.Queue;
declare const taskInput: stepfunctions.TaskInput;
const sendToQueue = new stepfunctions_tasks.SendToQueue(queue, {
  messageBody: taskInput,

  // the properties below are optional
  delay: cdk.Duration.minutes(30),
  integrationPattern: stepfunctions.ServiceIntegrationPattern.FIRE_AND_FORGET,
  messageDeduplicationId: 'messageDeduplicationId',
  messageGroupId: 'messageGroupId',
});

// The code below shows an example of how to instantiate this type.
// The values are placeholders you should change.
import * as stepfunctions from '@aws-cdk/aws-stepfunctions';
import * as stepfunctions_tasks from '@aws-cdk/aws-stepfunctions-tasks';
import * as cdk from '@aws-cdk/core';

declare const activity: stepfunctions.Activity;
const invokeActivity = new stepfunctions_tasks.InvokeActivity(activity, /* all optional props */ {
  heartbeat: cdk.Duration.minutes(30),
});

declare const myTable: dynamodb.Table;
new tasks.DynamoUpdateItem(this, 'UpdateItem', {
  key: {
    MessageId: tasks.DynamoAttributeValue.fromString('message-007')
  },
  table: myTable,
  expressionAttributeValues: {
    ':val': tasks.DynamoAttributeValue.numberFromString(sfn.JsonPath.stringAt('$.Item.TotalCount.N')),
    ':rand': tasks.DynamoAttributeValue.fromNumber(20),
  },
  updateExpression: 'SET TotalCount = :val + :rand',
});