feat: add support for nested messages (#142)

Author: danielsepulvedab

functions/notify_slack.py

@@ -45,11 +45,19 @@ def default_notification(subject, message):
   attachments = {
     "fallback": "A new message",
     "title": subject if subject else "Message",
+    "mrkdwn_in": ["value"],
     "fields": []
   }
   if type(message) is dict:
     for k, v in message.items():
-      attachments['fields'].append({"title": k, "value": v, "short": False})
+      value = f"`{json.dumps(v)}`" if isinstance(v, (dict, list)) else str(v)
+      attachments['fields'].append(
+        {
+          "title": k,
+          "value": value,
+          "short": len(value) < 25
+        }
+      )
   else:
     attachments['fields'].append({"value": message, "short": False})
 

functions/notify_slack_test.py

@@ -96,6 +96,30 @@
             "AWSAccountId": "000000000000",
             "NewStateValue": "ALARM",
         }
+    ),
+    (
+      {
+        "Records": [
+          {
+            "EventSource": "aws:sns",
+            "EventVersion": "1.0",
+            "EventSubscriptionArn": "arn:aws:sns:eu-west-1:000000000000:my-sns:76cc1745-b910-4f5e-97bf-f5993b044420",
+            "Sns": {
+              "Type": "Notification",
+              "MessageId": "00337b3f-0982-5cb1-9138-22799c885da9",
+              "TopicArn": "arn:aws:sns:eu-west-1:000000000000:my-sns",
+              "Subject": None,
+              "Message": '{"version":"0","id":"ad3c3da1-148c-d5da-9a6a-79f1bc9a8a2e","detail-type":"Glue Job State Change","source":"aws.glue","account":"000000000000","time":"2021-06-18T12:34:06Z","region":"eu-west-1","resources":[],"detail":{"jobName":"test_job","severity":"ERROR","state":"FAILED","jobRunId":"jr_ca2144d747b45ad412d3c66a1b6934b6b27aa252be9a21a95c54dfaa224a1925","message":"SystemExit: 1"}}',
+              "Timestamp": "2021-06-18T12:34:09.509Z",
+              "SignatureVersion": "1",
+              "Signature": "MN9H4+7QXISx+IqoRtsdIIXhd9cy9yIV916ajnDChJF9XaPi76zlwHb6RYRdi8MxKIEZsQ7F6DYV/4Hz6GqcQckqZpuYywwa3S1qUim4jw+HKtVvLAsQr/aZ0n2b/8gBC0wPpge3YaMJ13iliJ0G5Bs85MoCrTVG17TGsg8HqJkeKNx1mC4PyOMejXm+F3dwudPLozJ+CX6s+rMkiHVmpJjAv9N2qYgCKloG//dXQEU9LdZpGTDFEnazVR8PKjBEN9RTXNcNnAWuFrt+r0kOtiUoObtJOulPrUIQhIi8fvLto329wWzUQkB9wnvEt7QHeO9Qp8WhstQ3/ki8yiyAwA==",
+              "SigningCertUrl": "https://sns.eu-west-1.amazonaws.com/SimpleNotificationService-010a507c1833636cd94bdb98bd93083a.pem",
+              "UnsubscribeUrl": "https://sns.eu-west-1.amazonaws.com/?Action=Unsubscribe&SubscriptionArn=arn:aws:sns:eu-west-1:r00000000000:my-sns:76cc1745-b910-4f5e-97bf-f5993b044420",
+              "MessageAttributes": {},
+            },
+          }
+        ]
+      }
     )
 )