Creating output for npm csvtojson - json

Question

I'm trying to read in my .CSV file and output a .json file using npm's csvtojson
I am using the following code:
//Converter Class
var Converter = require("csvtojson").Converter;
var converter = new Converter({});
var fs = require("fs");
//end_parsed will be emitted once parsing finished
converter.on("end_parsed", function (jsonArray) {
console.log(jsonArray); //here is your result jsonarray
});
fs.createReadStream('data.csv')
.pipe(csv2json({
// Defaults to comma.
separator: '|'
}))
.pipe(fs.createWriteStream('dataOut.json'));
However, I'm running into the error "csv2json is not defined"
Does anyone know why I'm running into this error, despite including "csvtojson" on the first line?

Answer 1

cvs2json is not defined anywhere in your code. The cannocial example for cvs2json (from https://github.com/julien-f/csv2json) is:
var csv2json = require('csv2json');
var fs = require('fs');
fs.createReadStream('data.csv')
.pipe(csv2json({
// Defaults to comma.
separator: ';'
}))
.pipe(fs.createWriteStream('data.json'));
So the simple answer is to change your first line to var csv2json = require('csv2json');. However, this would cause an error in your attempt to have the end_parse event fire. To listen to that event, use the Node Stream eventing:
var stream = fs.createReadStream('data.csv')
.pipe(csv2json({
// Defaults to comma.
separator: '|'
}));
stream.on('end', function (jsonArray) {
console.log(jsonArray); //here is your result jsonarray
});
stream.pipe(fs.createWriteStream('dataOut.json'));

Answer 2

This is how I implement hope it helps.
let csv2Json = require('convert-csv-to-json');
let fileInputName = 'stores.csv';
let fileOutputName = 'stores.json';
csv2Json.fieldDelimiter(',').generateJsonFileFromCsv(fileInputName,
fileOutputName);
//To display json you created on terminal.
let json = csv2Json.getJsonFromCsv("stores.csv");
for(let i=0; i<json.length;i++){
console.log(json[i]);
}
Once you run the file, it is going to create the json file, if it is exists it is going to overwrite it.