CodePipeline activity notification JSON ends up malformed at Microsoft Teams

Question

Has anybody else tried to send CodePipeline events over to a Microsoft Teams channel using the following examples

https://aws.amazon.com/premiumsupport/knowledge-center/sns-lambda-webhooks-chime-slack-teams/

and end up with the displayed JSON having no value for the additionalAttributes property? It is supposed to be an empty {} object.

```
{
"account": "ACCOUNTNUMBER",
"detailType": "CodePipeline Pipeline Execution State Change",
"region": "REGION",
"source": "aws.codepipeline",
"time": "2022-01-17T08:59:36Z",
"notificationRuleArn": "RULEARN",
"detail": {
"pipeline": "PIPELINE",
"execution-id": "GUID",
"execution-trigger": {
"trigger-type": "Webhook",
"trigger-detail": "CODESTARARN"
},
"state": "STARTED",
"version": 1.0
},
"resources": [
"PIPELINEARN"
],
"additionalAttributes": 
}
```

I logged down the Python formatting statements and the resultant encoded string does include the {} so I guess somehow the Teams side does not like empty objects and drops it off?

Accepted Answer

We are sending to Microsoft Teams that payload format.

```
{ "text": "STRINGYFIED_JSON" }
```

Where STRINGYFIED_JSON = the serialised SNS message object.

I tested further by adding a placeholder property to the blank object for additionalAttributes and Teams did accept that and rendered proper JSON in the post.

```
# Add placeholder property to potentially empty object {} in additionalAttributes
# Microsoft Teams may not like it and not render in rendered post text.
snsMessage['additionalAttributes']['placeholder'] = "Prevent empty object."
```

Answer

As described in the Knowledge Center Article, the minimum payload for TEAMS has to be:

```json
{"text": "Some Text"}
```

Just `{}` won't work.

The article simply uses the JSON payload of the SNS message and forwards it to the TEAMS Webhook, however they support [Adaptive Cards](https://adaptivecards.io/) and their legacy format [Actionable Message](https://docs.microsoft.com/en-us/outlook/actionable-messages/message-card-reference) which allows you to format your information quite nicely. Our team uses the Python module [pyadaptivecards](https://pypi.org/project/pyadaptivecards/) to make the layout of our cards easier.

CodePipeline activity notification JSON ends up malformed at Microsoft Teams

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