Redirect Server With Express.js

For my job I had to write a handler to redirect vanity URLs using Clojure. This is an easier example with Node.js

const express = require('express')
const { redirectTable } = require('./redirectTable')
const PORT = 8080

const app = express()

app.get('/', (req, res) => {
    res.status(200).json({ success: true })
})

app.get('/go/*', (req, res) => {
    const targetUrl = redirectTable[req.url]
    if (targetUrl !== undefined) {
        res.setHeader("Location", targetUrl)
    }
    res.status(302).json({})
})

app.listen(PORT, () => {
    console.log(`Server started on port ${PORT}`)
})

Redirect Table (redirectTable.js)

const payload =
[
    {
        "vanityURLPath": "/go/google",
        "targetURL": "https://www.google.com"
    },
    {
        "vanityURLPath": "/go/cnn",
        "targetURL": "https://www.cnn.com"
    },
    {
        "vanityURLPath": "/go/disney",
        "targetURL": "https://www.disney.com"
    }
]

const redirectTable = {};
payload.forEach(el => {
    redirectTable[el.vanityURLPath] = el.targetURL
})

module.exports = {
    redirectTable
}