Cloudwatch logs will be formatted differently depending on what runtime you are using. This library should make things abit easier.
Node:
2020-11-18T23:52:30.128Z 6e48723a-1596-4313-a9af-e4da9214d637 INFO {"data": "Hello World"}
Python:
[INFO] 2020-11-18T23:52:30.128Z 6e48723a-1596-4313-a9af-e4da9214d637 {"data": "Hello World"}
Dotnet/Provided Runtimes just logs the raw message from the runtime:
{"data": "Hello World"}