[GENERAL ISSUE] - cfn-guard-lambda response parsing seems like a bit much

[boonew2]

Describe the issue
The cfn-guard-lambda response is very verbose and seems to require a good chunk of knowledge about the inner workings of the tool to parse and that feels cumbersome enough that I am hoping to double check that I am using the available tools appropriately.

To avoid the xy problem i'll describe the general problem I'm trying to solve:

• we have a lot of small repos that each have their own cfn templates and I was hoping to use cfn-guard to enforce some org wide rules against some resources that may be in the templates.
• to run cfn-guard against the myriad of repos i was planning to create a github org wide webhook on PR events that would hit a lambda that would be deployed with the org ruleset and run it against a template (if in the PR diff) via a separate cfn-guard-lambda
• the webhook lambda would parse the results and relay them as a github check to the PR

As I'm digging into parsing the nested response of the lambda it feels like i'm going to be recreating a component of what cfn-guard natively already does in order to capture what rules actually failed, with their messages, and where they failed in the template.

Any examples
Output from cfn-guard cli:
cfn-guard-cli.txt

Output from cfn-guard lambda (same ruleset/template):
cfn-guard-lambda.json

The information is all there in the lambda output so I don't think this is a bug or anything. I'm half asking for a sanity check that there isn't a way to use the cfn-guard lambda that bubbles up the summary like the cli does and ultimately probably going to ask for a feature request to create that or at least some example code in the docs as a reference point

[boonew2]

@joshfried-aws (pinging you just because it looks like you've been responding on about every other issue)
Have any advice/feedback?

[joshfried-aws]

Hi @boonew2 since the lambda crate is assumed to be working in a web context, the output for it was made to use json since this is the easiest way to have other programs interpret/parse those results. Are you able elaborate on your use case for the single-line-summary use case?

[boonew2]

@joshfried-aws not sure how much more i can elaborate on it than what is in the opening comment. Just trying to make the lambda work on github PRs and respond with a human friendly message that a dev can act on ( i don't think it needs to be single line). The cli does a good job giving a pretty human friendly summary and it just seems weird to manually recreate that when the functionality is already somewhere in there