app.js

const express = require('express');
const router = express.Router();

const app = express();
const bodyParser = require('body-parser');
const morgan = require('morgan');

const rateLimit = require("express-rate-limit");

app.set('trust proxy', 1);

// RATE LIMITING START
const apiLimiter = rateLimit({
    windowMs: 60 * 60 * 1000, // 1 hour
    max: 2500 // limit each IP to 2500 requests per hour
});

const pokeRoutes = require('./api/routes/pokemon');
const typeRoutes = require('./api/routes/types');
const itemRoutes = require('./api/routes/items');
const movesRoutes = require('./api/routes/moves');

app.use("/pokemon", apiLimiter);
app.use("/types", apiLimiter);
app.use("/items", apiLimiter);
app.use("/moves", apiLimiter);
// RATE LIMITING END


app.use(morgan('dev'));

app.use(bodyParser.urlencoded({
    extended: false
}))
app.use(bodyParser.json())

//CORS error removal
app.use((req, res, next) => {
    res.header('Access-Control-Allow-Origin', '*')
    res.header('Access-Control-Allow-Headers', '*')
    if (req.method === 'OPTIONS') {
        res.header('Access-Control-Allow-Methods', 'PUT,POST,PATCH,DELETE,GET')
        return res.status(200).json({})
    }
    next();
})

app.use('/pokemon', pokeRoutes);
app.use('/types', typeRoutes);
app.use('/items', itemRoutes);
app.use('/moves', movesRoutes);

app.use(router.get('/', (req, res) => {
    res.status(200).json({
        message: "Please read the documentaion on https://purukitto.github.io/PikaServe/ for instructions"
    });
}));

app.use(router.post('/', (req, res) => {
    res.status(200).json({
        message: "Please read the documentaion on https://purukitto.github.io/PikaServe/ for instructions"
    });
}));

module.exports = app;