class Resolver (construct) 🔹

Language	Type name
.NET	Amazon.CDK.AWS.AppSync.Resolver
Java	software.amazon.awscdk.services.appsync.Resolver
Python	aws_cdk.aws_appsync.Resolver
TypeScript (source)	@aws-cdk/aws-appsync » Resolver

Implements IConstruct, IConstruct, IDependable

An AppSync resolver.

Example

declare const api: appsync.GraphqlApi;
declare const appsyncFunction: appsync.AppsyncFunction;

const pipelineResolver = new appsync.Resolver(this, 'pipeline', {
  api,
  dataSource: api.addNoneDataSource('none'),
  typeName: 'typeName',
  fieldName: 'fieldName',
  requestMappingTemplate: appsync.MappingTemplate.fromFile('beforeRequest.vtl'),
  pipelineConfig: [appsyncFunction],
  responseMappingTemplate: appsync.MappingTemplate.fromFile('afterResponse.vtl'),
});

Initializer

new Resolver(scope: Construct, id: string, props: ResolverProps)

Parameters

• scope Construct
• id string
• props ResolverProps

Construct Props

Name	Type	Description
api🔹	IGraphqlApi	The API this resolver is attached to.
fieldName🔹	string	name of the GraphQL field in the given type this resolver is attached to.
typeName🔹	string	name of the GraphQL type this resolver is attached to.
cachingConfig?🔹	CachingConfig	The caching configuration for this resolver.
dataSource?🔹	BaseDataSource	The data source this resolver is using.
pipelineConfig?🔹	IAppsyncFunction[]	configuration of the pipeline resolver.
requestMappingTemplate?🔹	MappingTemplate	The request mapping template for this resolver.
responseMappingTemplate?🔹	MappingTemplate	The response mapping template for this resolver.

---

api🔹

Type: IGraphqlApi

The API this resolver is attached to.

---

fieldName🔹

Type: string

name of the GraphQL field in the given type this resolver is attached to.

---

typeName🔹

Type: string

name of the GraphQL type this resolver is attached to.

---

cachingConfig?🔹

Type: CachingConfig (optional, default: No caching configuration)

The caching configuration for this resolver.

---

dataSource?🔹

Type: BaseDataSource (optional, default: No datasource)

The data source this resolver is using.

---

pipelineConfig?🔹

Type: IAppsyncFunction[] (optional, default: no pipeline resolver configuration An empty array | undefined sets resolver to be of kind, unit)

configuration of the pipeline resolver.

---

requestMappingTemplate?🔹

Type: MappingTemplate (optional, default: No mapping template)

The request mapping template for this resolver.

---

responseMappingTemplate?🔹

Type: MappingTemplate (optional, default: No mapping template)

The response mapping template for this resolver.

Properties

Name	Type	Description
arn🔹	string	the ARN of the resolver.
node🔹	ConstructNode	The construct tree node associated with this construct.

---

arn🔹

Type: string

the ARN of the resolver.

---

node🔹

Type: ConstructNode

The construct tree node associated with this construct.

Methods

Name	Description
toString()🔹	Returns a string representation of this construct.

---

toString()🔹

public toString(): string

Returns

• string

Returns a string representation of this construct.