(@aws-cdk/aws-events): EventPattern type does not support using content-based filtering

[jscott-resilient]

There is no type support for content based filtering unless I've missed some documentation (please provide a link if there is any!)

Reproduction Steps

The code snippet below shows a type error complaining about "resources" not being of type string[]

to work around this I did the following:

After building the stack and looking in AWS console, the expected event pattern was created and the events matched as expected, so updating the type is all that is needed.

Environment

• aws-cdk/events: 1.91.0
• typescript: 4.2.2

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This is 🐛 Bug Report

[DaWyz]

Would it make sense to use something similar to the Sns Subscription Filters?

It would do something like that:

rule.addEventPattern({
  source: EventFilter.stringFilter({
    whitelist: ['aws.events'],
    blacklist: ['aws.blabla'],
  }),
});

[reply2srij]

I am facing a similar issue in Java. Is there a workaround for this?

EventPattern.builder().source() only accepts String[]
What I would like the pattern to be is:
{
"source": [{
"prefix": "error"
}]
}

[jscott-resilient]

Have you tried making the object a string? I.e. { "prefix": "error" }.toString(). you would probably want to make that a variable.