vvdn.js

var request = require('request')
var fs = require('fs')

const form_data = {'file':  fs.createReadStream("./TestInvoice1.png") }
const options = {
    url: 'https://app.nanonets.com/api/v2/OCR/Model/a2072fdb-6950-4c20-ab86-614358c035d6/LabelFile/',
    formData: form_data,
    headers: {
        'Authorization': 'Basic ' + Buffer.from('{ADD_API_KEY}' + ':').toString('base64')
    }
}
request.post(options, function (err, httpResponse, body) {
    console.log(body)
});