class DynamoProjectionExpression

Language	Type name
.NET	Amazon.CDK.AWS.StepFunctions.Tasks.DynamoProjectionExpression
Go	github.com/aws/aws-cdk-go/awscdk/v2/awsstepfunctionstasks#DynamoProjectionExpression
Java	software.amazon.awscdk.services.stepfunctions.tasks.DynamoProjectionExpression
Python	aws_cdk.aws_stepfunctions_tasks.DynamoProjectionExpression
TypeScript (source)	aws-cdk-lib » aws_stepfunctions_tasks » DynamoProjectionExpression

Class to generate projection expression.

Example

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

Initializer

new DynamoProjectionExpression()

Methods

Name	Description
atIndex(index)	Adds the array literal access for passed index.
toString()	converts and return the string expression.
withAttribute(attr)	Adds the passed attribute to the chain.

---

atIndex(index)

public atIndex(index: number): DynamoProjectionExpression

Parameters

• index number — array index.

Returns

• DynamoProjectionExpression

Adds the array literal access for passed index.

---

toString()

public toString(): string

Returns

• string

converts and return the string expression.

---

withAttribute(attr)

public withAttribute(attr: string): DynamoProjectionExpression

Parameters

• attr string — Attribute name.

Returns

• DynamoProjectionExpression

Adds the passed attribute to the chain.