Convert .json to .csv in ruby

Question

I want to convert .json file into .csv file using ruby. Pleases help me to do this.

Also propose any tool to achieve this.

Answer 1

I think the easies way to convert the JSON to CSV in ruby is using json2csv ruby gem.

PS: I may be biased as I am author of this.

json2csv github repo

Running the command

json2csv convert data/sample.json

Input File

In this particular case it will convert following json:

cat data/sample.json

{
    "12345": {
        "Firstname": "Joe",
        "Lastname": "Doe",
        "Address": {
            "Street": "#2140 Taylor Street, 94133",
            "City": "San Francisco",
            "Details": {
                "note": "Pool available"
            }
        }
    },

    "45678": {
        "Firstname": "Jack",
        "Lastname": "Plumber",
        "Address": {
            "Street": "#111 Sutter St, 94104",
            "City": "San Francisco",
            "Details": {
                "note": "Korean Deli near to main entrance"
            }
        }
    }
}

Output

cat data/sample.json.csv

id,Firstname,Lastname,Address.Street,Address.City,Address.Details.note
12345,Joe,Doe,"#2140 Taylor Street, 94133",San Francisco,Pool available
45678,Jack,Plumber,"#111 Sutter St, 94104",San Francisco,Korean Deli near to main entrance