I have a csv file I want to use in node.js/express. How can I convert the file to a variable of type array/json/string. I've tried:
fs.readFile('Resource.csv', function(err, data) {
console.log(data)}
And also tried a number of other things I could find in SO but none work for me. The data is of multiple rows if it matters.
var fs = require('fs');
var data = fs.readFileSync('Resource.csv')
.toString() // convert Buffer to string
.split('\n') // split string to lines
.map(e => e.trim()) // remove white spaces for each line
.map(e => e.split(',').map(e => e.trim())); // split each line to array
console.log(data);
console.log(JSON.stringify(data, '', 2)); // as json
fs.readFileSync('Resource.csv', <codepage>). Often console doesn't work with utf-8 (and national localizes) correctly.
\n. You should use a special library for production.To expand on my comment (from the csvtojson doc)
Install with npm i --save csvtojson
Then you use the module like this :
CSV File :
a,b,c
1,2,3
4,5,6
JS Code :
const csvFilePath='<path to csv file>' // Resource.csv in your case
const csv=require('csvtojson') // Make sure you have this line in order to call functions from this modules
csv()
.fromFile(csvFilePath)
.then((jsonObj)=>{
console.log(jsonObj);
})
Output :
[
{a:"1", b:"2", c:"3"},
{a:"4", b:"5". c:"6"}
]
const csvtojson=require('csvtojson')then you should use csvtojson(...).fromFile(...).then