AppSyncResolver

The AppSyncResolver component is internally used by the AppSync component to add resolvers to AWS AppSync.

Caution

This component is not intended for public use.

You’ll find this component returned by the addResolver method of the AppSync component.

---

Constructor

new AppSyncResolver(name, args, opts?)

Parameters

• name string

• args ResolverArgs

• opts? ComponentResourceOptions

Properties

nodes

Type Object

• resolver

The underlying resources this component creates.

nodes.resolver

Type Resolver

The Amazon AppSync Resolver.

ResolverArgs

apiId

Type Input<string>

The AppSync GraphQL API ID.

code?

Type Input<string>

The function code that contains the request and response functions.

{
  code: fs.readFileSync("functions.js")
}

dataSource?

Type Input<string>

The data source this resolver is using. This only applies for “unit” resolvers.

{
  dataSource: "lambdaDS"
}

field

Type Input<string>

The field name from the schema defined.

functions?

Type Input<string[]>

The functions this resolver is using. This only applies for “pipeline” resolvers.

{
 functions: ["myFunction1", "myFunction2"]
}

kind?

Type Input<“unit” | “pipeline”>

Default “unit”

The type of the resolver.

{
  kind: "pipeline"
}

requestTemplate?

Type Input<string>

For “unit” resolvers, this is the request mapping template. And for “pipeline” resolvers, this is the before mapping template.

{
  dataSource: "dynamoDS",
  requestTemplate: `{
    "version": "2017-02-28",
    "operation": "Scan",
  }`,
}

responseTemplate?

Type Input<string>

For “unit” resolvers, this is the response mapping template. And for “pipeline” resolvers, this is the after mapping template.

{
  dataSource: "dynamoDS",
  responseTemplate: `{
    "users": $utils.toJson($context.result.items)
  }`,
}

transform?

Type Object

• resolver?

Transform how this component creates its underlying resources.

transform.resolver?

Type ResolverArgs | (args: ResolverArgs => void)

Transform the AppSync Resolver resource.

type

Type Input<string>

The type name from the schema defined.