arangodbaql

[ArangoDB]: Get the first element of an object?

I am trying to get the first element of the object scan. In my case, the first element's key changes. So I cannot call it with the key. Here is the AQL query I'm using, which is not working.

`FOR d in collection RETURN DISTINCT Object.keys(d.out.scan)[0]`

Object structure:

{
  "out": {
       "scan":{
             "someKeyThatChanges":"someValue"
              }
        }
}

Is there a way to fetch the first key of scan?

Thank you

Solution

  • To fetch just the name of the first key of out.scan, the following will work:

    FOR d IN collection
  RETURN ATTRIBUTES(d.out.scan)[0]

    For returning the mapped value for that key, please refer to the other answer given.