Question

I have a folder with a number of JSON files within it.

I want to take all .json files, where the filename ends with _LAST.json, and combine them into one JSON file. Each of the files that are to be processed are named like:

Bill_LAST.json
Jane_LAST.json
Kitty_LAST.json

Bill_LAST.json looks like:

[{

    "Date": "2012-11-19",
    "Name": "Bill",
    "Age": 54,
    "Sex": "M"

}]

Answer 1

It could be as simple as:

json = Dir['./*_LAST.json'].map { |f| JSON.parse File.read(f) }.flatten

Here is a working demo.