Error in Queries result in cryptic React error

[sporto]

In Marty 0.10.4

If I have an error in a query:

class Queries extends Marty.Queries {

    fetchFinancials(personId) {
        [].foo();

        ...
    }

}

I see this in the console:

"Unhandled rejection invariant ...

So from the stack trace there is no clue what the error is.

This is a query called by a Container -> Store -> Query

[taion]

Do you have an associated stack trace?

[sporto]

@taion here is an example stack trace https://gist.github.com/sporto/d20cee5307b33e92df26

[pbomb]

We've had to put a try catch around the dispatch call in ActionCreators or Queries objects to get at the actual error. Otherwise, they get suppressed in Marty.

On a related note, is there a way to know the status of each fetch property in a Marty container? For instance, in my failed handler, I'd like to log out which fetches failed, but I don't see a bulletproof way to determine which fetches are in which state. Should I test if the fetch property value is an instance of Error? Is that the preferred/safe way?