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File Reader + parser - assign filename
I’ve got a pipeline which is reading multiple files.
A simplified version is the below:
I’d need the output to contain a column with the filename of the original file.
As the file content ...
Forum Discussion
I’m not sure what the mapValues is doing in your example, but you can use extend() to add to the JSON document. In this case, you would create a new object with your “yesterday” field and extend that with the incoming object. Something like this:
{ "yesterday" : Date.now().minusDays(1).toLocaleDateString() }.extend($)
