objectifier.js

var fs = require('fs');

const args = process.argv;
let resource = args[2]
let start_index = args[3]
let end_index = args[4]

let input_filename = "./5e-SRD-" + resource + ".json"

if (args.length > 4) {
    fs.readFile(input_filename, 'utf8', (err,data) => {
        data = JSON.parse(data);		
        var i = start_index - 1;
        while (i != (parseInt(end_index))) {
            console.log(`{ "url": "${data[i].url}", "name": "${data[i].name}" },`);
            i++;
        }
    })
} else {
    fs.readFile(input_filename, 'utf8', (err,data) => {
        data = JSON.parse(data);		
        var i = start_index - 1;
        console.log(`{ "url": "${data[i].url}", "name": "${data[i].name}" },`);
    })
}