Webhook to EventBridge (AWS CDK Stack)

Based on generic-webhook-to-eventbridge

Deploy

1. Fork and pull GitHub repository

2. Create CodeCommit WebhookToEventBridgeStack repository

3. Add CodeCommit repository to origin

4. (optional) Update CDK to latest version

5. Push to CodeCommit repository on branch master

6. Install dependencies

   npm install

7. Deploy

   PROFILE=[AWS config profile] npm run deploy

8. Crete event bus webhook

Handle webhook events

1. Create simple "echo" Lambda

   exports.handler = async event => {
     console.log(JSON.stringify(event, null, 2))
   }

2. Create EventBridge rule for "webhook" event bus

   • Rule name: webhook-echo

   • Event pattern:

     {
       "source": ["webhook"]
     }

   • Target: Lambda "echo"

3. Post event

   • Get webhook url from CloudFormation Stack outputs

     https://[domainPrefix].execute-api.eu-west-1.amazonaws.com/prod/

   • Post json event

     { "foo": "bar" }

     to url

     https://[domainPrefix].execute-api.eu-west-1.amazonaws.com/prod/echo

     echo string in url path will be passed to detail-type field in result event.

     You should get response with code 200 and json body:

     { "ok": true }

   • View "echo" Lambda output

     {
       "version": "0",
       "id": "a181422e-596a-dadd-76d8-35b9e184c24b",
       "detail-type": "echo",
       "source": "webhook",
       "account": "912345678123",
       "time": "2021-06-19T09:23:20Z",
       "region": "eu-west-1",
       "resources": [],
       "detail": {
         "resource": "/{proxy+}",
         "path": "/echo",
         "httpMethod": "POST",
         "headers": {
           "Accept": "*/*",
           "Accept-Encoding": "gzip, deflate, br",
           "Cache-Control": "no-cache",
           "CloudFront-Forwarded-Proto": "https",
           "CloudFront-Is-Desktop-Viewer": "true",
           "CloudFront-Is-Mobile-Viewer": "false",
           "CloudFront-Is-SmartTV-Viewer": "false",
           "CloudFront-Is-Tablet-Viewer": "false",
           "CloudFront-Viewer-Country": "RU",
           "Content-Type": "application/json",
           "Host": "abcdefghjk.execute-api.eu-west-1.amazonaws.com",
           "Postman-Token": "142aa722-268f-4ddd-7534-5a350b2035b6",
           "User-Agent": "PostmanRuntime/7.28.0",
           "Via": "1.1 f625bdda16d203019232a5961e949d9fa.cloudfront.net (CloudFront)",
           "X-Amz-Cf-Id": "dyxyizPrwiZ8p1FlnAs_tLupncMdNtO_gJCg1iJXhIhPI4_hool0Lg==",
           "X-Amzn-Trace-Id": "Root=1-60cdb787-7fc47b73710907f82267811b",
           "X-Forwarded-For": "123.12.34.56, 23.10.10.10",
           "X-Forwarded-Port": "443",
           "X-Forwarded-Proto": "https"
         },
         "multiValueHeaders": {
           "Accept": ["*/*"],
           "Accept-Encoding": ["gzip, deflate, br"],
           "Cache-Control": ["no-cache"],
           "CloudFront-Forwarded-Proto": ["https"],
           "CloudFront-Is-Desktop-Viewer": ["true"],
           "CloudFront-Is-Mobile-Viewer": ["false"],
           "CloudFront-Is-SmartTV-Viewer": ["false"],
           "CloudFront-Is-Tablet-Viewer": ["false"],
           "CloudFront-Viewer-Country": ["RU"],
           "Content-Type": ["application/json"],
           "Host": ["abcdefghjk.execute-api.eu-west-1.amazonaws.com"],
           "Postman-Token": ["142aa722-268f-4ddd-7534-5a350b2035b6"],
           "User-Agent": ["PostmanRuntime/7.28.0"],
           "Via": [
             "1.1 f625bdda16d203019232a5961e949d9fa.cloudfront.net (CloudFront)"
           ],
           "X-Amz-Cf-Id": [
             "dyxyizPrwiZ8p1FlnAs_tLupncMdNtO_gJCg1iJXhIhPI4_hool0Lg=="
           ],
           "X-Amzn-Trace-Id": ["Root=1-05cdb787-7fc47b73714907f82267811b"],
           "X-Forwarded-For": ["123.12.34.56, 23.10.10.10"],
           "X-Forwarded-Port": ["443"],
           "X-Forwarded-Proto": ["https"]
         },
         "queryStringParameters": null,
         "multiValueQueryStringParameters": null,
         "pathParameters": {
           "proxy": "echo"
         },
         "stageVariables": null,
         "requestContext": {
           "resourceId": "89k10d",
           "resourcePath": "/{proxy+}",
           "httpMethod": "POST",
           "extendedRequestId": "CKgdNGN5DoEFseQ=",
           "requestTime": "19/Jun/2021:09:23:19 +0000",
           "path": "/prod/echo",
           "accountId": "912345678123",
           "protocol": "HTTP/1.1",
           "stage": "prod",
           "domainPrefix": "abcdefghjk",
           "requestTimeEpoch": 1624094599572,
           "requestId": "f86a9370-53df-40ae-5955-463db4c40e6d",
           "identity": {
             "cognitoIdentityPoolId": null,
             "accountId": null,
             "cognitoIdentityId": null,
             "caller": null,
             "sourceIp": "123.12.34.56",
             "principalOrgId": null,
             "accessKey": null,
             "cognitoAuthenticationType": null,
             "cognitoAuthenticationProvider": null,
             "userArn": null,
             "userAgent": "PostmanRuntime/7.28.0",
             "user": null
           },
           "domainName": "abcdefghjk.execute-api.eu-west-1.amazonaws.com",
           "apiId": "abcdefghjk"
         },
         "body": {
           "foo": "bar"
         },
         "isBase64Encoded": false
       }
     }