Add the table viewer to your app

Add a table viewer to your stack #

Add the following hightlighted lines to main.ts to add a TableViewer construct to your stack:

import { TableViewer } from "@tcons/cdk-dynamo-table-viewer";
import { App } from "cdktf";
import { Construct } from "constructs";
import { AwsStack, AwsStackProps } from "terraconstructs/lib/aws";
import {
  Code,
  LambdaFunction,
  Runtime,
  LambdaRestApi,
} from "terraconstructs/lib/aws/compute";
import { HitCounter } from "./lib/hitcounter";

class MyStack extends AwsStack {
  constructor(scope: Construct, id: string, props: AwsStackProps) {
    super(scope, id, props);

    // defines an AWS Lambda resource
    const hello = new LambdaFunction(this, "HelloHandler", {
      runtime: Runtime.NODEJS_22_X,
      code: Code.fromAsset("lambda"),
      handler: "hello.handler",
    });

    const helloWithCounter = new HitCounter(this, "HelloHitCounter", {
      downstream: hello,
    });

    // defines an API Gateway REST API resource backed by our "hello" function.
    new LambdaRestApi(this, "Endpoint", {
      cloudWatchRole: false,
      handler: helloWithCounter.handler,
      registerOutputs: true,
    });

    new TableViewer(this, "ViewHitCounter", {
      title: "Hello Hits",
      table: //??????
    });
  }
}

const app = new App();
new MyStack(app, "cdk-workshop", {
  environmentName: "dev",
  gridUUID: "cdk-workshop-dev",
  providerConfig: {
    region: "us-east-1",
  },
});
app.synth();

What about the table? #

As you’ll notice, TableViewer requires that you specify a table property.

What we want is to somehow access the DynamoDB table behind our hit counter. However, the current API of our hit counter doesn’t expose the table as a public member.

In the next section, we’ll expose our table as a property of HitCounter so we can access it from our stack.