Is there a way to include the git message in AWS CodeCommit Push Trigger Notifications?

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I have a codecommit repo.

I have a push trigger setup with a "Send to" = "Amazon SNS".

At SNS, I have some email subscribers hooked up to the notification event.

As a result, the project developers receive an email each time any developer executes a git push against the repo.

The email looks similar to:

enter image description here

Is there a way to add the git push or commit message in that notification?

aws-codecommit
2 Answers

If you are receiving the aws payload in your continuous integration server (jenkins, travis, etc) and you are able to clone the repository (if you are going to buid your app) you will be able to get the message using git tool which is already installed if you are going to clone your repository

This is the notification payload from aws code commit trigger to my ci server:

{
  "Type": "Notification",
  "MessageId": "296892a1a77b",
  "TopicArn": "arn:aws:sns:us-bar-1:123456:TopicFoo",
  "Subject": "UPDATE: AWS CodeCommit us-bar-1 push: my-awesome-repo",
  "Message": ".....",
  "Timestamp": "2021-06-23T20:57:15.040Z",
  "SignatureVersion": "1",
  "SigningCertURL": "https://sns.us-bar-1.amazonaws.com/SimpleNotificationService-foo-.pem",
  "UnsubscribeURL": "https://foo.bar"
}

Message field is stringified :s

{\"Records\":[{\"awsRegion\":\"us-bar-1\",\"codecommit\":{\"references\":[{\"commit\":\"fb28ebbec522cc403\",\"ref\":\"refs/heads/mybranch\"}]},\"customData\":null,\"eventId\":\"d1dab883\",\"eventName\":\"ReferenceChanges\",\"eventPartNumber\":1,\"eventSource\":\"aws:codecommit\",\"eventSourceARN\":\"arn:aws:codecommit:us-bar-1:123456:my-awesome-repo\",\"eventTime\":\"2021-06-23T20:57:15.005+0000\",\"eventTotalParts\":1,\"eventTriggerConfigId\":\"e4ea5f3bec6c\",\"eventTriggerName\":\"my_ci_server_notification\",\"eventVersion\":\"1.0\",\"userIdentityARN\":\"arn:aws:iam::123456:user/jane_doe\"}]}

But replacing \" by ", We will get a readable json

{
  "Records": [{
    "awsRegion": "us-bar-1",
    "codecommit": {
      "references": [{
        "commit": "fb28ebbec522cc403",
        "ref": "refs/heads/mybranch"
      }]
    },
    "customData": null,
    "eventId": "d1dab883",
    "eventName": "ReferenceChanges",
    "eventPartNumber": 1,
    "eventSource": "aws:codecommit",
    "eventSourceARN": "arn:aws:codecommit:us-bar-1:123456:my-awesome-repo",
    "eventTime": "2021-06-23T20:57:15.005+0000",
    "eventTotalParts": 1,
    "eventTriggerConfigId": "e4ea5f3bec6c",
    "eventTriggerName": "my_ci_server_notification",
    "eventVersion": "1.0",
    "userIdentityARN": "arn:aws:iam::123456:user/jane_doe"
  }]
}

In which we can extract the commit id in the section: references.commit

"references": [{
  "commit": "fb28ebbec522cc403",
  "ref": "refs/heads/mybranch"
}]

And finally get the message using git shell tool :S

git log --format=%B -n 1 fb28ebbec522cc403
user_39577540
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