app.js

const express = require("express");
const bodyParser = require("body-parser");
const request = require("request");
const https = require("https");

const app = express();

app.use(express.static("public"));
app.use(bodyParser.urlencoded({extended: true}));

app.get("/", function(req,res){
    res.sendFile(__dirname+"/signup.html");

});

app.post("/", function(req, res){
    const firstName = req.body.fName;
    const lastName = req.body.lName;
    const email = req.body.email;
    
    const data = {
        members: [
            {
                email_address: email,
                status: "subscribed",
                merge_fields: {
                    FNAME: firstName,
                    LNAME: lastName
                }
            }
        ]
    };

    const jsonData = JSON.stringify(data);
    const url = "https://us21.api.mailchimp.com/3.0/lists/811371ce58";
    const options = {
        method: "POST",
        auth: "adib:a6b4c314cf8df1079e5794e00abec459-us21"
    }
    const request = https.request(url, options, function(response){
        if (response.statusCode === 200) {
            res.sendFile(__dirname+"/success.html");
        } else {
            res.sendFile(__dirname+"/failure.html");
        }
        
        response.on("data", function(data){
            console.log(JSON.parse(data)) ;
        })
    });
    request.write(jsonData);
    request.end();


});
app.post("/failure", function(req, res){
    res.redirect("/")
});


app.listen(process.env.PORT || 3000, function(){
    console.log("Server is up and running on port 3000")
});

// a6b4c314cf8df1079e5794e00abec459-us21

// list Id
// 811371ce58