CDK construct that creates a WebSocket endpoint for you for any EventBridge rule you are interested in. (Built for debugging + testing )
Home Page: https://boyney123.github.io/cdk-eventbridge-socket/
Hi,
I have tried using this with latest CDK (version 2.29.0 (build 47d7ec4)) and Node 18.4 and I am always getting this error one way or the other:
/root/cdk-debug-evbridge/node_modules/ts-node/src/index.ts:843
return new TSError(diagnosticText, diagnosticCodes, diagnostics);
^
TSError: ⨯ Unable to compile TypeScript:
bin/cdk-debug-evbridge.ts:7:27 - error TS2345: Argument of type 'import("/root/cdk-debug-evbridge/node_modules/aws-cdk-lib/c
ore/lib/app").App' is not assignable to parameter of type 'import("/root/cdk-debug-evbridge/node_modules/@aws-cdk/core/lib/a
pp").App'.
Type 'App' is missing the following properties from type 'App': onValidate, onPrepare, onSynthesize, validate, and 2 more.
7 new CdkDebugEvbridgeStack(app, 'CdkDebugEvbridgeStack', {
~~~
at createTSError (/root/cdk-debug-evbridge/node_modules/ts-node/src/index.ts:843:12)
at reportTSError (/root/cdk-debug-evbridge/node_modules/ts-node/src/index.ts:847:19)
at getOutput (/root/cdk-debug-evbridge/node_modules/ts-node/src/index.ts:1057:36)
at Object.compile (/root/cdk-debug-evbridge/node_modules/ts-node/src/index.ts:1411:41)
at Module.m._compile (/root/cdk-debug-evbridge/node_modules/ts-node/src/index.ts:1596:30)
at Module._extensions..js (node:internal/modules/cjs/loader:1166:10)
at Object.require.extensions.<computed> [as .ts] (/root/cdk-debug-evbridge/node_modules/ts-node/src/index.ts:1600:12)
at Module.load (node:internal/modules/cjs/loader:988:32)
at Function.Module._load (node:internal/modules/cjs/loader:834:12)
at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:77:12) {
diagnosticCodes: [ 2345 ]
}
Subprocess exited with error 1
Here's my code:
import * as cdk from '@aws-cdk/core';
import { EventBridgeWebSocket } from 'cdk-eventbridge-socket';
export class CdkDebugEvbridgeStack extends cdk.Stack {
constructor(scope: cdk.App, id: string, props?: cdk.StackProps) {
super(scope, id, props);
new EventBridgeWebSocket(this, 'CdkDebugEvbridgeSockets', {
bus: 'default',
// This example shows how to listen for all events
eventPattern: {
account: ['1234567891234'],
},
stage: 'dev',
});
// The code that defines your stack goes here
// example resource
// const queue = new sqs.Queue(this, 'CdkDebugEvbridgeQueue', {
// visibilityTimeout: cdk.Duration.seconds(300)
// });
}
}Some good comments here about how to build CDK packages.
https://dev.to/aws-builders/correctly-defining-dependencies-in-l3-cdk-constructs-45p
Also I noticed before that https://aws.github.io/jsii/ seems to be a popular way to build CDK constructs.
Here is an example of how it can work? https://github.com/nideveloper/CDK-SPA-Deploy
By default the websocket is open for anyone to connect too.
Think it would be better practice if there was a basic lambda that maybe could verify a token of some sort? Like the example seen here https://docs.aws.amazon.com/apigateway/latest/developerguide/http-api-lambda-authorizer.html
exports.handler = async(event) => {
let response = {
"isAuthorized": false,
"context": {
"stringKey": "value",
"numberKey": 1,
"booleanKey": true,
"arrayKey": ["value1", "value2"],
"mapKey": {"value1": "value2"}
}
};
if (event.headers.authorization === "secretToken") {
response = {
"isAuthorized": true,
"context": {
"stringKey": "value",
"numberKey": 1,
"booleanKey": true,
"arrayKey": ["value1", "value2"],
"mapKey": {"value1": "value2"}
}
};
}
return response;
};Maybe the websocket could send a authorization header, then we could allow the connection if it matches....
This is slightly related to #3 and you may want jsii anyway, but there's a more central issue of transitory dependencies as outlined https://dev.to/aws-builders/correctly-defining-dependencies-in-l3-cdk-constructs-45p. Switching to dev & peer dependencies is a good first step to allowing this construct to be more compatible with newer CDK releases.
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