parsefile.js

var fs = require("fs");
var path = require("path");
var cheerio = require("cheerio");

module.exports = (mypath) => {
    var inputFile = fs.readFileSync(mypath, "utf8");

    var $ = cheerio.load(inputFile, {xmlMode:true});

    // defines the selector
    var relationship_number = $("Relationship").filter("[Id]").length;

    // Initialize an empty object
    var relationship_object = {};

    // loops over the relationship xml in order to find the relationship Id and the target
    // and adds the value to the relationship_object
    for (i=0; i < relationship_number; i++){
        relationship_object[$("Relationship").filter("[Id]")[i].attribs.Id] = $("Relationship").filter("[Id]")[i].attribs.Target;
    }

    // gets a confirmation in console of correct parsing
    if(Object.keys(relationship_object).length===relationship_number){
        console.log("Relationships parsed successfully")
    }

    return relationship_object;
});