data_window_to_array.md

data_window_to_array

The data_window_to_array processor converts arrays of DataWindows to a flattened array of DataEntities. The input must be an array of DataWindows.

Usage

Convert DataWindows to an array of data

Example of a job using the data_window_to_array processor

{
   "name" : "testing",
   "workers" : 1,
   "slicers" : 1,
   "lifecycle" : "once",
   "assets" : [
       "standard"
   ],
   "operations" : [
        {
           "_op": "test-reader"
       },
       {
           "_op": "accumulate_by_key",
           "flush_data_on_shutdown": true,
           "empty_after": 10
       },
       {
           "_op": "data_window_to_array"
       },
       {
           "_op": "noop"
       }
   ]
}

Output from the example job

const dataWindowList = [
    { dataArray: [{ id: 1 }, { id: 2 }, { id: 3 }] },
    { dataArray: [{ id: 4 }, { id: 5 }, { id: 6 }] },
    { dataArray: [{ id: 7 }, { id: 8 }, { id: 9 }] }
];

const results = await processor.run(dataWindowList);


// will be converted to this:
results === [
    { id: 1 },
    { id: 2 },
    { id: 3 },
    { id: 4 },
    { id: 5 },
    { id: 6 },
    { id: 7 },
    { id: 8 },
    { id: 9 }
]

Parameters

Configuration	Description	Type	Notes
_op	Name of operation, it must reflect the exact name of the file	String	required