Lambda

Configure an AWS Lambda function as a data source for your GraphQL API resolver.

Syntax

To declare this entity in your AWS Serverless Application Model (AWS SAM) template, use the following syntax.

YAML

LogicalId:
  Description: String
  FunctionArn: String
  Name: String
  ServiceRoleArn: String

Properties

Description

The description of your data source.

Type: String

Required: No

AWS CloudFormation compatibility: This property is passed directly to the Description property of an AWS::AppSync::DataSource resource.

FunctionArn

The ARN for the Lambda function.

Type: String

Required: No

AWS CloudFormation compatibility: This property is passed directly to the LambdaFunctionArn property of an AWS::AppSync::DataSource LambdaConfig object.

LogicalId

The unique name of your data source.

Type: String

Required: Yes

AWS CloudFormation compatibility: This property is passed directly to the Name property of an AWS::AppSync::DataSource resource.

Name

The name of your data source. Specify this property to override the LogicalId value.

Type: String

Required: No

AWS CloudFormation compatibility: This property is passed directly to the Name property of an AWS::AppSync::DataSource resource.

ServiceRoleArn

The AWS Identity and Access Management (IAM) service role ARN for the data source. The system assumes this role when accessing the data source.

Note

To revoke access to your data source, remove the Lambda object from your AWS SAM template.

Type: String

Required: No. If not specified, AWS SAM will provision Write permissions using AWS SAM connectors.

AWS CloudFormation compatibility: This property is passed directly to the ServiceRoleArn property of an AWS::AppSync::DataSource resource.