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aws-cdk-web

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aws-cdk-web

AWS CDK in your browser

1.4.1
Source
npm

Version published: 3 years ago

Maintainers: 1

Created: 3 years ago

Source

cdk-web :rocket: DEMO

:muscle: AWS CDK in your browser! (experimental)

this package is also mirrored on NPM under aws-cdk-web. read about the differences below.

table of content

why?

it's fun.
you might be limited in tooling (e.g. Node is not allowed)
you might be behind a corporate proxy and a browser is all you get reliably
you might not have time for native tooling because you just want to deploy a damn bucket!

usage

load cdk-web.js somewhere into your HTML file:

<script src="https://unpkg.com/cdk-web"></script>

and start writing CDK apps like you would normally do in Node:

const cdk = require("aws-cdk-lib");
const ec2 = require("aws-cdk-lib/aws-ec2");
const sqs = require("aws-cdk-lib/aws-sqs");
const sns = require("aws-cdk-lib/aws-sns");
const s3 = require("aws-cdk-lib/aws-s3");
const app = new cdk.App();
const stack = new cdk.Stack(app, "BrowserStack");
const vpc = new ec2.Vpc(stack, "VPC");
const queue = new sqs.Queue(stack, "Queue");
const topic = new sns.Topic(stack, "Topic");
const bucket = new s3.Bucket(stack, "Bucket");
const assembly = app.synth();
console.log(assembly);

output of app.synth() contains all you need to get your generated stack.

bootstrapping and cli functionality

if you are looking to use this against a live AWS account inside a browser, you may find these notes useful:

building

executing npm run build builds CDK for web. everything is bundled in dist/cdk-web.js. you may open up dist/index.html in your browser if you want to just play with the compiled bundle.

testing

testing is done by Puppeteer. the actual generated bundle is loaded into Puppeteer and tests are executed against it. run npm test to execute them.

exports

default behavior

a global require function is exposed that can resolve the following modules in a browser environment:

aws-cdk-lib: core CDK library
aws-cdk-lib/*: core scoped CDK modules
constructs: the AWS constructs library
path: node path utilities to be used with fs
fs: in-memory and in-browser file system API

after you call app.synth() you can investigate what normally goes into your cdk.out by calling require('fs').vol.toJSON() which returns everything on "disk" within your browser.

overriding behavior

you can override the default export behavior by defining window.CDK_WEB_REQUIRE to a string before loading cdk-web.js in your HTML. For example:

<!DOCTYPE html>
<html>
  <body>
    <script>window.CDK_WEB_REQUIRE = "my_custom_cdk_require"</script>
    <script src="cdk-web.js"></script>
    <script>
      // window.require is now window.my_custom_cdk_require
      const cdk = my_custom_cdk_require('aws-cdk-lib');
    </script>
  </body>
</html>

`cdk-web` vs `aws-cdk-web`

The two packages are identical, mirrored, and released to at the same time. You may use the other mirror if you are behind a corporate proxy and your NPM packages go through a third-party repository such as Artifactory. The mirror does not list any packages as dependencies in its package.json (neither dev, nor prod). This prevents cdk-web to be incorrectly flagged as vulnerable due to its outdated devDependencies. cdk-web is a compiled project. Its compiler and toolchain being outdated does not impact its runtime. It's all client side JavaScript anyway. The mirror is only provided for your convenience.

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Package last updated on 25 Feb 2022

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