feat(appsync): add Construct for AppSync HTTP DataSource

[civilizeddev]

I implemented a Construct level of HTTP DataSource for appsync.

Use Case

Currently aws-appsync module provides these:

• None
• DynamoDB
• Lambda

But not these:

• HTTP
• Elastisearch
• RDS

Proposed Solution

HTTP data source only takes http endpoint. (just extends appsync.BaseDataSource)

/**
 * An AppSync datasource backed by a http endpoint
 */
export class HttpDataSource extends appsync.BaseDataSource {
  constructor(scope: cdk.Construct, id: string, props: HttpDataSourceProps) {
    super(scope, id, props, {
      httpConfig: {
        endpoint: props.endpoint,
      },
      type: 'HTTP',
    })
  }
}

Other

And I also added some resolver mapping template examples for HTTP data source:

• 👋 I may be able to implement this feature request
• ⚠️ This feature might incur a breaking change

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This is a 🚀 Feature Request