Package software.amazon.awscdk.services.appsync

Class DynamoDbDataSource

java.lang.Object

software.amazon.jsii.JsiiObject

software.constructs.Construct

software.amazon.awscdk.services.appsync.BaseDataSource

software.amazon.awscdk.services.appsync.BackedDataSource

software.amazon.awscdk.services.appsync.DynamoDbDataSource

All Implemented Interfaces:

IGrantable, software.amazon.jsii.JsiiSerializable, software.constructs.IConstruct, software.constructs.IDependable

@Generated(value="jsii-pacmak/1.104.0 (build e79254c)",
           date="2024-11-22T02:23:57.163Z")
@Stability(Stable)
public class DynamoDbDataSource
extends BackedDataSource

An AppSync datasource backed by a DynamoDB table.

Example:

 GraphqlApi api = GraphqlApi.Builder.create(this, "Api")
         .name("demo")
         .definition(Definition.fromFile(join(__dirname, "schema.graphql")))
         .authorizationConfig(AuthorizationConfig.builder()
                 .defaultAuthorization(AuthorizationMode.builder()
                         .authorizationType(AuthorizationType.IAM)
                         .build())
                 .build())
         .xrayEnabled(true)
         .build();
 Table demoTable = Table.Builder.create(this, "DemoTable")
         .partitionKey(Attribute.builder()
                 .name("id")
                 .type(AttributeType.STRING)
                 .build())
         .build();
 DynamoDbDataSource demoDS = api.addDynamoDbDataSource("demoDataSource", demoTable);
 // Resolver for the Query "getDemos" that scans the DynamoDb table and returns the entire list.
 // Resolver Mapping Template Reference:
 // https://docs.aws.amazon.com/appsync/latest/devguide/resolver-mapping-template-reference-dynamodb.html
 demoDS.createResolver("QueryGetDemosResolver", BaseResolverProps.builder()
         .typeName("Query")
         .fieldName("getDemos")
         .requestMappingTemplate(MappingTemplate.dynamoDbScanTable())
         .responseMappingTemplate(MappingTemplate.dynamoDbResultList())
         .build());
 // Resolver for the Mutation "addDemo" that puts the item into the DynamoDb table.
 demoDS.createResolver("MutationAddDemoResolver", BaseResolverProps.builder()
         .typeName("Mutation")
         .fieldName("addDemo")
         .requestMappingTemplate(MappingTemplate.dynamoDbPutItem(PrimaryKey.partition("id").auto(), Values.projecting("input")))
         .responseMappingTemplate(MappingTemplate.dynamoDbResultItem())
         .build());
 //To enable DynamoDB read consistency with the `MappingTemplate`:
 demoDS.createResolver("QueryGetDemosConsistentResolver", BaseResolverProps.builder()
         .typeName("Query")
         .fieldName("getDemosConsistent")
         .requestMappingTemplate(MappingTemplate.dynamoDbScanTable(true))
         .responseMappingTemplate(MappingTemplate.dynamoDbResultList())
         .build());
 

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static final class	DynamoDbDataSource.Builder	A fluent builder for DynamoDbDataSource.

Nested classes/interfaces inherited from class software.amazon.jsii.JsiiObject

software.amazon.jsii.JsiiObject.InitializationMode

Nested classes/interfaces inherited from interface software.constructs.IConstruct

software.constructs.IConstruct.Jsii$Default

Nested classes/interfaces inherited from interface software.amazon.awscdk.services.iam.IGrantable

IGrantable.Jsii$Default

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	DynamoDbDataSource(software.amazon.jsii.JsiiObject.InitializationMode initializationMode)
protected	DynamoDbDataSource(software.amazon.jsii.JsiiObjectRef objRef)
	DynamoDbDataSource(software.constructs.Construct scope, String id, DynamoDbDataSourceProps props)

Method Summary

Methods inherited from class software.amazon.awscdk.services.appsync.BackedDataSource

getGrantPrincipal

Methods inherited from class software.amazon.awscdk.services.appsync.BaseDataSource

createFunction, createResolver, getApi, getDs, getName, getServiceRole, setApi, setServiceRole

Methods inherited from class software.constructs.Construct

getNode, isConstruct, toString

Methods inherited from class software.amazon.jsii.JsiiObject

jsiiAsyncCall, jsiiAsyncCall, jsiiCall, jsiiCall, jsiiGet, jsiiGet, jsiiSet, jsiiStaticCall, jsiiStaticCall, jsiiStaticGet, jsiiStaticGet, jsiiStaticSet, jsiiStaticSet

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface software.amazon.jsii.JsiiSerializable

$jsii$toJson

Constructor Details

DynamoDbDataSource

protected DynamoDbDataSource(software.amazon.jsii.JsiiObjectRef objRef)

DynamoDbDataSource

protected DynamoDbDataSource(software.amazon.jsii.JsiiObject.InitializationMode initializationMode)

DynamoDbDataSource

@Stability(Stable)
public DynamoDbDataSource(@NotNull
 software.constructs.Construct scope,
 @NotNull
 String id,
 @NotNull
 DynamoDbDataSourceProps props)

Parameters:

scope - This parameter is required.

id - This parameter is required.

props - This parameter is required.