AWS CDK Chart.js Canvas Layer for AWS Lambda

 Problem:

Using the AWS CDK v2, how to deploy the "Canvas Layer for AWS Lambda" serverless application and attach the layer to a Lambda function.

lambda-layer-canvas-nodejs

https://serverlessrepo.aws.amazon.com/applications/arn:aws:serverlessrepo:us-east-1:990551184979:applications~lambda-layer-canvas-nodejs

https://charoitel.github.io/lambda-layer-canvas-nodejs/

To get the latest semanticVersion:

1. Open the AWS Management Console.
2. Navigate to the Serverless Application Repository.
3. Search for lambda-layer-canvas-nodejs.
4. View the application details to find the latest version.

Solution:

import { Stack } from 'aws-cdk-lib';

import { Construct } from 'constructs';

import { CfnApplication } from 'aws-cdk-lib/aws-sam';

import * as lambda from 'aws-cdk-lib/aws-lambda';

import * as lambdaNJS from 'aws-cdk-lib/aws-lambda-nodejs';

export default class ChartStack extends Stack {

    constructor(scope: Construct, id: string, props: cdk.StackProps) {

        super(scope, id, props);

        const chartJsApp = new CfnApplication(this, 'ChartJsApp', {

            location: {

                applicationId: 'arn:aws:serverlessrepo:us-east-1:990551184979:applications/lambda-layer-canvas-nodejs',

                semanticVersion: '2.11.3'

            }

        });

        const layerArn = chartJsApp.getAtt('Outputs.LayerVersion').toString();

        const njs = new lambdaNJS.NodejsFunction(this, 'ChartLambda', {

            entry: 'main.ts',

            handler: 'handler',

            runtime: lambda.Runtime.NODEJS_18_X,

            layers: [lambda.LayerVersion.fromLayerVersionArn(this, 'ChartJsLayer', layerArn)]

        });

        // Add dependency to ensure the layer is deployed before the function

        njs.node.addDependency(chartJsApp);

    }

}