Deploy Razzle Apps to AWS Lambda using AWS CDK (https://aws.amazon.com/cdk/)

helpers.ts

import * as SSM from '@aws-cdk/aws-ssm';
import * as CDK from '@aws-cdk/core';

export const getParam = (scope: CDK.Construct, name: string) => {
  return SSM.StringParameter.valueForStringParameter(scope, name);
};

export interface ConfigProps extends CDK.StackProps {
  name: string;
}

export class ModeStack extends CDK.Stack {
  public readonly mode: string = this.node.tryGetContext('mode') || 'development';
  public readonly Mode: string =
    this.node.tryGetContext('mode').replace(/^\w/, (c: string) => c.toUpperCase()) || 'Development';

  constructor(scope: CDK.Construct, id: string, props?: ConfigProps) {
    super(scope, id, props);
  }
}

RazzleStack.ts

import * as CDK from '@aws-cdk/core';
import * as S3 from '@aws-cdk/aws-s3';
import * as S3Deployment from '@aws-cdk/aws-s3-deployment';
import * as Lambda from '@aws-cdk/aws-lambda';
import * as APIGateway from '@aws-cdk/aws-apigateway';
import * as SSM from '@aws-cdk/aws-ssm';
import * as SecretsManager from '@aws-cdk/aws-secretsmanager';

import { ConfigProps, getParam, ModeStack } from './helpers';

export class RazzleStack extends ModeStack {
  constructor(app: CDK.App, id: string, props: ConfigProps) {
    super(app, id, props);

    /**
     * S3 bucket to the /public folder
     */
    const publicBucketName = `my-razzle-app-bucket-public-files-${this.mode}`;
    const bucketPublicFiles = new S3.Bucket(this, publicBucketName, {
      publicReadAccess: true,
      bucketName: publicBucketName.toLowerCase(),
    });

    /**
     * Store S3 bucket name
     */
    new SSM.StringParameter(this, `MyRazzleAppBucketAssetsName${this.Mode}`, {
      description: `My Razzle App S3 Bucket Name for Assets on ${this.Mode}`,
      parameterName: `/${props.name}/S3/Assets/Name`,
      stringValue: bucketPublicFiles.bucketName,
    });

    /**
     * Store S3 domainName name
     */
    new SSM.StringParameter(this, `MyRazzleAppBucketAssetsDomainName${this.Mode}`, {
      description: `My Razzle App S3 Bucket DomainName for Assets on ${this.Mode}`,
      parameterName: `/${props.name}/S3/Assets/DomainName`,
      stringValue: bucketPublicFiles.bucketDomainName,
    });

    /**
     * Deploy public folder of build to `my-razzle-app-bucket-public-files-${this.mode}` bucket
     */
    new S3Deployment.BucketDeployment(this, `${publicBucketName}-deploy`, {
      sources: [S3Deployment.Source.asset('./build/public')],
      destinationBucket: bucketPublicFiles,
    });

    /**
     * Environment Variables for SSR Function
     */
    const environmentKeys = [
      'NODE_ENV',
      'RAZZLE_GRAPHQL_URL',
      'RAZZLE_MAPBOX_ACCESS_TOKEN',
      'RAZZLE_GOOGLE_RECAPTCHA_SITE',
      'RAZZLE_GA_ID',
    ];

    const environmentSecret = SecretsManager.Secret.fromSecretAttributes(
      this,
      `MyRazzleAppEnvironmentSecret${this.Mode}`,
      {
        secretArn: getParam(this, `MyRazzleAppSecretsArn${this.Mode}`),
      },
    );

    let environment: { [key: string]: string } = {};
    for (const key of environmentKeys) {
      environment[key] = environmentSecret.secretValueFromJson(key).toString();
    }

    /**
     * Razzle SSR Function
     */
    const myRazzleAppSsrFunction = new Lambda.Function(this, `MyRazzleAppSSRFunction${this.Mode}`, {
      description: `Lambda Function that runs My Razzle App SSR on ${this.Mode}`,
      code: Lambda.Code.fromAsset('./build', {
        exclude: ['public', 'static', '*.json'],
      }),
      handler: 'server.handler',
      runtime: Lambda.Runtime.NODEJS_12_X,
      memorySize: 512,
      timeout: CDK.Duration.seconds(5),
      environment,
      tracing: Lambda.Tracing.ACTIVE,
    });

    /**
     * Razzle ApiGateway
     */
    const razzleSsrApiGatewayName = `MyRazzleAppSSRApiGateway${this.Mode}`;
    const api = new APIGateway.RestApi(this, razzleSsrApiGatewayName, {
      description: `ApiGateway that exposes My Razzle App SSR on ${this.Mode}`,
      binaryMediaTypes: ['*/*'],
      endpointTypes: [APIGateway.EndpointType.REGIONAL],
      deployOptions: {
        stageName: this.mode,
      },
    });
    const integration = new APIGateway.LambdaIntegration(myRazzleAppSsrFunction);
    const root = api.root;
    const pathApi = api.root.addResource('{proxy+}');

    root.addMethod('GET', integration);
    pathApi.addMethod('ANY', integration);

    /**
     * Razzle ApiGateway ID
     */
    new SSM.StringParameter(this, `MyRazzleAppAPIGatewayRestId${this.Mode}`, {
      description: `My Razzle App ApiGateway ID on ${this.Mode}`,
      parameterName: `/${props.name}/APIGateway/ApiId`,
      stringValue: api.restApiId,
    });
  }
}

I've also answered here with the same code sample

where is ConfigProps, getParam, ModeStack? code?

sorry, I forgot to add the helpers.ts file
now it's updated