csvtojson

Module 1 Assignment Lab: CSV to JSON Converter

Usage
$ node converter.js or
$ node converter.js path-to-csv-file

Walkthrough

We import csvtojson, fs and path into my project. csvtojson is an npm module while the others are node core modules.
Next we create a variable csvFilePath to hold the path to the input csv file.
The program uses the sample csv file (customer-data.csv) provided for this assignment as the default argument but provides option to use any file when running as a commandline program. The csv file is provided as the second argument after specifying the file to run. See usage above.
The function convertToJSON() accepts a csv file and converts the file to JSON format. If no file is specified, a default file is used. In the function we create an array to hold each JSON object so that we have an array of JSON objects.
Next we call the csvtojson() function and pass in our csv file, we listen for the json event and push each event to array.
When the done event is triggered we call JSON.stringify() and pass our array as argument then write its contents to file. We then log a message on successful write.
I'm using the async fs.writeFile() for no other reason than that I prefer it.

Notes

At first attempt I named the repo csvtojson and tried to install the csvtojson module from npm. Npm complained so I changed my project name to avoid the name conflict.
After csvtojson converted the input csv file to json, I had to do a JSON.stringify() before writing the output json to disk.
I am writing the output json to a file (out.json) in the current working directory
I tested the program with another csv file from the ibm site. The file is in the ./data folder.

Meta

I'm using standard for code linting. Code linting is a great idea by the way, it helps you avoid classes of errors and enforce a uniform style when collaborating on a project. I was using xo but found that standard fits my style better.

oguching/csvtojsonconverter