Downloading Files from a Private Repository in nodejs. It's better to just pipe the octet stream to client BUT in case if you are hosting of platform like vercel which supports only 4mb payload limit its a good workaround for that

download.js

const express = require("express")
const router = express.Router()
const axios = require('axios');
const fs = require("fs")
const token = process.env.GITHUB_TOKEN
const REPO = // Repo eg: dead8309/Kizzy
      
const getLatestRelease = async() =>{
	let file = await axios.get(`https://api.github.com/repos/${REPO}/releases/latest`, {
    headers: {
        'Authorization': 'token '+token
    }
})
var latestReleaseInfo = await file.data
return latestReleaseInfo
}

const getLatestFile = async(jsonData) =>{
	let assets = await jsonData
	assets = assets.assets[0]

	 let file = await axios.get(assets.url,{
    headers: {
        'Accept': 'application/octet-stream',
        'Authorization': 'token '+token
    }
}) 
	let data = await file.request.res.responseUrl
	return data
}

router.get('/',async (req,res) => {
	let path = await getLatestFile(getLatestRelease())
	res.status(301).redirect(path)
})

router.get('/latest', async (req,res)=>{
let data = await getLatestRelease()
const response = { 
	name: data.name,
	body: data.body
}
res.send(response)

})
module.exports = router
/*
There are two Routes
GET '/' -> Downloads the file
GET '/latest' -> Gets the latest release body for displaying on webpage
*/