# NoneDataSourceProps

Properties for an AppSync dummy datasource.

Extends: NoneDataSourceProps
Extends: BaseDataSourceProps
Used as props by: NoneDataSource

- Source: [`aws-appsync/lib/data-source.ts`](https://github.com/aws/aws-cdk/blob/v2.275.0/packages/aws-cdk-lib/aws-appsync/lib/data-source.ts#L229)
- Type last changed: v2.60.0 · 12 Jan 2023

## Example

```ts
// The code below shows an example of how to instantiate this type.
// The values are placeholders you should change.
import { aws_appsync as appsync } from 'aws-cdk-lib';
import { aws_appsync as interfaces_appsync } from 'aws-cdk-lib/interfaces';

declare const graphQLApiRef: interfaces_appsync.IGraphQLApiRef;
const noneDataSourceProps: appsync.NoneDataSourceProps = {
  api: graphQLApiRef,

  // the properties below are optional
  description: 'description',
  metricsConfig: appsync.DataSourceMetricsConfig.ENABLED,
  name: 'name',
};
```

## Properties

- `api`: [IGraphQLApiRef](/cdk/api/v2/docs/aws-cdk-lib.interfaces.aws_appsync.IGraphQLApiRef.html) (required) — The API to attach this data source to.

- `description`: string = None — the description of the data source.

- `metricsConfig`: [DataSourceMetricsConfig](/cdk/api/v2/docs/aws-cdk-lib.aws_appsync.DataSourceMetricsConfig.html) — Whether to enable enhanced metrics of the data source Value will be ignored, if `enhancedMetricsConfig.dataSourceLevelMetricsBehavior` on AppSync GraphqlApi construct is set to `FULL_REQUEST_DATA_SOURCE_METRICS`.

  **Default:** no metrics configuration

- `name`: string — The name of the data source.

  **Default:** id of data source