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‎sample-apps/cdk/s3-lambda‎

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‎sample-apps/cdk/s3-lambda-test/.gitignore‎

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# Logs
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logs
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*.log
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npm-debug.log*
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yarn-debug.log*
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yarn-error.log*
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lerna-debug.log*
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# Diagnostic reports (https://nodejs.org/api/report.html)
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report.[0-9]*.[0-9]*.[0-9]*.[0-9]*.json
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# Runtime data
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pids
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*.pid
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*.seed
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*.pid.lock
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# Directory for instrumented libs generated by jscoverage/JSCover
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lib-cov
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# Coverage directory used by tools like istanbul
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coverage
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*.lcov
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# nyc test coverage
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.nyc_output
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# Grunt intermediate storage (https://gruntjs.com/creating-plugins#storing-task-files)
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.grunt
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# Bower dependency directory (https://bower.io/)
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bower_components
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# node-waf configuration
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.lock-wscript
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# Compiled binary addons (https://nodejs.org/api/addons.html)
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build/Release
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# Dependency directories
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node_modules/
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jspm_packages/
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# TypeScript v1 declaration files
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typings/
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# TypeScript cache
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*.tsbuildinfo
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# Optional npm cache directory
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.npm
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# Optional eslint cache
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.eslintcache
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# Microbundle cache
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.rpt2_cache/
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.rts2_cache_cjs/
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.rts2_cache_es/
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.rts2_cache_umd/
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# Optional REPL history
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.node_repl_history
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# Output of 'npm pack'
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*.tgz
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# Yarn Integrity file
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.yarn-integrity
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# dotenv environment variables file
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.env
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.env.test
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# parcel-bundler cache (https://parceljs.org/)
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.cache
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# Next.js build output
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.next
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# Nuxt.js build / generate output
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.nuxt
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dist
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# Gatsby files
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.cache/
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# Comment in the public line in if your project uses Gatsby and *not* Next.js
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# https://nextjs.org/blog/next-9-1#public-directory-support
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# public
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# vuepress build output
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.vuepress/dist
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# Serverless directories
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.serverless/
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# FuseBox cache
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.fusebox/
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# DynamoDB Local files
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.dynamodb/
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# TernJS port file
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.tern-port
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.DS_Store
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# CDK build folders
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cdk.out
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build
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# Config files
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src/config/*.json

‎sample-apps/cdk/s3-lambda-test/README.md‎

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# Welcome to the Video Backend Project!
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This project handles the creation of the Video infrastructure using CDK.
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The CDK files are located in the ./bin and ./lib folders. These are used to create the stack. The stack can be created on AWS or on LocalStack.
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The Lambda code is located in the ./src folder.
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All tests for the code are located in the ./test folder.
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## Useful commands
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* `yarn build` compile typescript to js
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* `yarn watch` watch for changes and compile
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* `yarn test` perform the unit tests
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* `cdk deploy` deploy this stack to your default AWS account/region
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* `cdk diff` compare deployed stack with current state
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* `cdk synth` emits the synthesized CloudFormation template
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## Setup
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```
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npm install -g aws-cdk-local aws-cdk
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cdklocal --version
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```
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## LocalStack Deploy
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```
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# Set these in your .aws/credentials file
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[default]
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aws_access_key_id = test
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aws_secret_access_key = test
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yarn build
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cdklocal boostrap
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yarn deply:lcl
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```
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## AWS Deploy
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```
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# Need to set for the proper environment
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VIDEO_ENV=dev
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CDK_DEFAULT_ACCOUNT=accountId
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cdk bootstrap aws://ACCOUNT_ID/REGION
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yarn deploy
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```

‎sample-apps/cdk/s3-lambda-test/bin/video-cdk.ts‎

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#!/usr/bin/env node
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import * as cdk from 'aws-cdk-lib';
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import 'source-map-support/register';
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import { VideoS3 } from '../lib';
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/******************************************************************************
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* Environment Information - see https://docs.aws.amazon.com/cdk/latest/guide/environments.html
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* If you don't specify 'env', this stack will be environment-agnostic.
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* Account/Region-dependent features and context lookups will not work,
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* but a single synthesized template can be deployed anywhere.
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********************************************************************************/
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const app = new cdk.App();
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const props = {
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env: {
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account: process.env.CDK_DEFAULT_ACCOUNT,
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region: process.env.CDK_DEFAULT_REGION,
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},
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};
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new VideoS3(app, 'VideoS3', {
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description: 'Video S3 Buckets',
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...props
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});

‎sample-apps/cdk/s3-lambda-test/cdk.json‎

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{
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"app": "npx ts-node --prefer-ts-exts bin/video-cdk.ts",
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"context": {
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"@aws-cdk/aws-apigateway:usagePlanKeyOrderInsensitiveId": true,
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"aws-cdk:enableDiffNoFail": "true",
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"@aws-cdk/core:stackRelativeExports": "true",
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"@aws-cdk/aws-ecr-assets:dockerIgnoreSupport": true,
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"@aws-cdk/aws-secretsmanager:parseOwnedSecretName": true,
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"@aws-cdk/aws-kms:defaultKeyPolicies": true,
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"@aws-cdk/aws-s3:grantWriteWithoutAcl": true,
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"@aws-cdk/aws-ecs-patterns:removeDefaultDesiredCount": true,
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"@aws-cdk/aws-rds:lowercaseDbIdentifier": true,
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"@aws-cdk/aws-efs:defaultEncryptionAtRest": true,
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"@aws-cdk/aws-lambda:recognizeVersionProps": true,
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"@aws-cdk/core:newStyleStackSynthesis": false
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}
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}

‎sample-apps/cdk/s3-lambda-test/lib/_helper.ts‎

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import * as cdk from 'aws-cdk-lib';
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import { CfnOutputProps } from 'aws-cdk-lib';
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import { Construct } from 'constructs';
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/**
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* @description - add CDK outputs to the CloudFormation stack
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* @param scope
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* @param name
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* @param value
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* @param description
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* @param exportName
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*/
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export function addOutput(scope: Construct, name: string, value: string, description: string, exportName: string) {
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const props: CfnOutputProps = {
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value,
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description,
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exportName,
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};
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new cdk.CfnOutput(scope, name, props);
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}

‎sample-apps/cdk/s3-lambda-test/lib/iam/index.ts‎

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‎sample-apps/cdk/s3-lambda-test/lib/index.ts‎

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export * from './video-s3';

‎sample-apps/cdk/s3-lambda-test/lib/lambda/VideoWatermarkHandler.ts‎

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import * as cdk from 'aws-cdk-lib';
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import { NodejsFunction } from 'aws-cdk-lib/aws-lambda-nodejs';
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import * as lambda from 'aws-cdk-lib/aws-lambda';
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import { Construct } from 'constructs';
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import { addOutput } from '../_helper';
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import * as path from 'path';
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export class VideoWatermarkHandler {
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public readonly id = 'videoWatermarkHandler';
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public readonly description = 'Video Watermarking lambda that receives a video from the media bucket and saves it to the media-watermark bucket';
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public instance: NodejsFunction;
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constructor(scope: Construct, props: any) {
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this.instance = new NodejsFunction(scope, this.id, {
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description: this.description,
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functionName: this.id,
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runtime: lambda.Runtime.NODEJS_14_X,
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memorySize: 1024,
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timeout: cdk.Duration.seconds(900), // 15 minutes
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handler: 'main',
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entry: path.join(__dirname, `/../../src/video/videoWatermarkHandler.ts`),
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environment: {
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VIDEO_ENV: process.env.VIDEO_ENV || 'dev',
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VERBOSE: process.env.VERBOSE || 'false',
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},
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});
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cdk.Tags.of(scope).add('Service', 'Media');
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cdk.Tags.of(scope).add('Environment', props.envName.valueAsString);
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// add output for the stack
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addOutput(scope, 'videoWatermarkHandlerLambdaName', this.instance.functionName, this.description,`${this.id}Name`);
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addOutput(scope, 'videoWatermarkHandlerLambdaArn', this.instance.functionArn, this.description,`${this.id}Arn`);
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}
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}

‎sample-apps/cdk/s3-lambda-test/lib/lambda/index.ts‎

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export * from './VideoWatermarkHandler';

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