app.js

const express = require("express");
const bodyParser = require("body-parser");
const ejs = require('ejs');

const app = express();
app.set("view engine", "ejs");

const SerpWow = require('google-search-results-serpwow')
const serpwow = new SerpWow('API KEY') // API key
app.use(bodyParser.urlencoded({
    extended: true
}));
app.use(express.static("public"));

app.get("/", (req, res) => {
    res.sendFile(__dirname + "/index.html");
})

app.post("/", (req, res) => {

    var query = req.body.query; // User input sent from form 

    var params = {
        q: query,
        location: 'Canada'
    }

    serpwow.json(params)
        .then((result) => {

            var data = result
            var video1 = data.inline_videos[0].link

            var prob1 = data.related_questions[0].question
            var ans1 = data.related_questions[0].answer

            var prob2 = data.related_questions[1].question
            var ans2 = data.related_questions[1].answer

            var prob3 = data.related_questions[2].question
            var ans3 = data.related_questions[2].answer

            var web1t = data.organic_results[0].title
            var web2t = data.organic_results[1].title
            var web3t = data.organic_results[2].title

            var web1desc = data.organic_results[0].snippet
            var web2desc = data.organic_results[1].snippet
            var web3desc = data.organic_results[2].snippet

            var web1url = data.organic_results[0].cached_page_link
            var web2url = data.organic_results[1].cached_page_link
            var web3url = data.organic_results[2].cached_page_link




            groups = video1.match(/.*\/(watch\?v=)?(.+)/)
            let video_id = groups[groups.length - 1]
            let embed_link = `https://www.youtube.com/embed/${video_id}`

            res.render("learn", {
                query: query,
                video1: embed_link,
                prob1: prob1,
                prob2: prob2,
                prob3: prob3,
                ans1: ans1,
                ans2: ans2,
                ans3: ans3,
                web1t: web1t,
                web2t: web2t,
                web3t: web3t,
                web1url: web1url,
                web2url: web2url,
                web3url: web3url,
                web1desc: web1desc,
                web2desc: web2desc,
                web3desc: web3desc
            })


        })
        .catch(error => {
            console.log(error);
        });


});


app.listen(process.env.PORT || 3000, () => {
    console.log("Server on port 3000");
});