Script to convert integer IFSC codes to string in Razorpay's IFSC database

padifsc.js

const ifsc = require('./IFSC')
const fs = require('fs')
const validate = require('./node/index').validate


const ifsc_size = 7
let newIfsc = {}

function pad(n, width, z) {
	z = z || '0'
	n = String(n)
	return n.length >= width ? n : (new Array(width - n.length + 1)).join(z) + n
}

for (let bankCode of Object.keys(ifsc)) {
	let newBranchCodes = ifsc[bankCode].map(x => pad(x, ifsc_size))
	newIfsc[bankCode] = newBranchCodes
}

let failedifsc = []
for (let bankCode of Object.keys(newIfsc)) {
	let failedHere = newIfsc[bankCode].filter(x => validate(x))
	failedifsc.push(...failedHere)
}

console.log(failedifsc.length, 'ifscs failed to validate')


fs.writeFileSync('newIfsc.json', JSON.stringify(newIfsc))