CodeBuildEvent struct not matching CloudWatchEvents

[whithajess]

CloudWatchEvents seem to not match the structure of CodeBuildEvents and when performing json.Unmarshal() throws an error:

json: cannot unmarshal number 60.0 into Go struct field CodeBuildEventAdditionalInformation.timeout-in-minutes of type int64: UnmarshalTypeError
null

It looks like Test Data (with minor changes) was pulled from: AWS Build Notification Docs which may have been correct at the time but what I am observing being returned from CloudWatchEvents is 60.0 not 60

You should be able to recreate with a simple lambda listening to CloudWatchEvents with source: "aws.codebuild"

package main

import (
	"github.com/aws/aws-lambda-go/events"
	"github.com/aws/aws-lambda-go/lambda"
)

func CodeBuildNotifier(event events.CodeBuildEvent) {}

func main() {
	lambda.Start(CodeBuildNotifier)
}

This looks like it can be fixed easily by changing the types in https://github.com/aws/aws-lambda-go/blob/master/events/duration.go to float64 instead of int64 PR to follow.

[whithajess]

@roberth-k I noticed you only recently put this in so you may have objections or already run up against this - any feedback would be appreciated.

[roberth-k]

@whithajess I did come across the same issue, but only fixed it locally (roberth-k@8f0289a) and did not put up a PR at the time. The PR looks good to me.

[bmoffatt]

merged #229