Amplify-console: Build notifications support with AWS Chatbot

[askulkarni2]

Is your feature request related to a problem? Please describe.
AWS Chatbot offers a convenient way to publish build notifications to Slack from AWS Developer Tools, AWS CloudFormation and others and is an approved Slack application for our organization. However, it does not currently support Amplify builds. I see the following error in CloudWatch Logs.

Event received is not supported (see https://docs.aws.amazon.com/chatbot/latest/adminguide/related-services.html ): 
{
    "subscribeUrl": null,
    "type": "Notification",
    "signatureVersion": "1",
    "signature": "fUiwL20YlWZBs1U81vvuAvvzUrQrF0xM2OtBg2UjDo3/YqCIpa/ZEBTMny8hla8Rr5z2SPWSep/W8Id2sSadcxhzFv3EsZ+uNQAfgextxLVr/d5kv5rtBSLI6iQAFbLxWyTVT+SzrTqPrAJF9BzNpM6cCH7h+cFA+aNzfKwLGlefBbzS+T/iwTc8Qt/CZWi3zTS+O86MCMLeaf0ezTQm5Q0ljt0DvGIz5qH/A1dZiGqqA8MuAphoY0r4QSnEQYGoLwMyJBclJNd/MWseIGxoFelOdoSnPvIQzlhUYua/8xVhKUTC3p1seXj6GpAedbzoVWPevmt7U/S2V6uOCthWUg==",
    "topicArn": "arn:aws:sns:us-west-2:XXXXXXXXXXXX:amplify-d1ywkiq91ymgkd_AMPLIBRANCHSENTINEL",
    "signingCertUrl": "https://sns.us-west-2.amazonaws.com/SimpleNotificationService-a86cb10b4e1f29c941702d737128f7b6.pem",
    "messageId": "01661a60-7a0a-511a-ab2a-4dc6be296397",
    "message": "Build notification from the AWS Amplify Console for app: https://master.d1ywkiq91ymgkd.amplifyapp.com/. Your build status is STARTED. Go to https://console.aws.amazon.com/amplify/home?region=us-west-2#d1ywkiq91ymgkd/master/19 to view details on your build. ",
    "subject": null,
    "unsubscribeUrl": "https://sns.us-west-2.amazonaws.com/?Action=Unsubscribe&SubscriptionArn=arn:aws:sns:us-west-2:XXXXXXXXXXXX:amplify-d1ywkiq91ymgkd_AMPLIBRANCHSENTINEL:***REDACTED***",
    "timestamp": "2020-08-07T02:52:19.481Z",
    "token": null
}

Describe the solution you'd like
Amplify already creates an SNS topic for pushing email notifications. The SNS topic could be used as a notification source for Chatbot as well once its supported.

[ganipcanot]

Thanks for the suggestion - I'll label this as a new feature request and get it into our backlog.

[lukehedger]

@ganipcanot Do you have a rough timeline of when this could be implemented? 🙏

[YOEL311]

Great feature
Is there an estimated time to add it?

[birsi]

👍 on this feature request. any updates here would be highly appreciated.

[VED-StuartMorris]

Also tried to implement the same and got to the exact same point.