Screwy title, but what I am trying to do is...
I have an incoming POST to a typical Rails /:controller/:action url.
That post has one value, not a name-value pair. So, Rail's params has
that data as a key (along with the other stuff Rails adds to params).
Now, in my current fiddling, it can be extracted as params.keys --
but I don't think I can count on that position as the params hash is,
well, a hash.
Is there a better way to acquire this data?