API Key based auth middle ware for node.js and express API

apikeyauthorizationmiddleware.js

const express = require("express");
const bodyParser = require("body-parser");
const cors = require("cors");
const config = require("config");



const routes = require('./routes');
const PORT = process.env.PORT || 3030;

// const redis = require("redis");
// const cache_config = { redis: process.env.REDIS_URL || config.get("redis") };
// const cache = require("express-redis-cache")({
//   client: redis.createClient(cache_config.redis)
// });
//
// cache.on("connected", () => {
//   // ....
//   console.log("cache connected");
// });
// cache.on("disconnected", () => {
//   // ....
//   console.log("cache disconneted");
// });

// create express app
const app = express();

// parse reqs of content-type - application/x-www-form-urlencoded
app.use(bodyParser.urlencoded({ extended: true }));

// parse reqs of content-type - application/json
app.use(bodyParser.json());

// adding cors
app.use(cors());


app.get('/',(req,res) => {
    res.status(200).json({message:'welcome to sa-sms crud api'});
});
/*******
 * API Key Based Authorization
 *******/
const authorize =  (req,res,next) => {
    const results = {status: false, payload : {}, error:{message: 'error user not authorized'}}
    try{
        const internal_key = process.env.INTERNAL_KEY || config.get('INTERNAL_KEY');
        const route  = req.originalUrl;
        const routes = route.split('/');
        const key = String(routes[routes.length - 1]).trim();

        res.locals.api_call = String(routes[routes.length - 2]).trim();

        if (internal_key === key){
            res.locals.authorized = true;
        }else{
            res.locals.authorized = false;
            return res.status(401).json(results);
        }
    }catch(error){
        res.locals.authorized = false;
        results.status = false;
        results.error = {message: 'general error : {}'.format(error)}
        return res.status(200).json(results);
    }
    next()
};

app.use(authorize);

app.use('/api/v1/sms/', routes.sms_router);

// listening for requests
app.listen(PORT).on('listening', () => {
    console.log(`sa sms rest api running on port :  ${PORT} `);    
});