Untitled

var http = require('http');
var url = require('url');
var fs = require('fs');
var crypto = require('crypto');


const requestListener = function (req, res) {
  var q = url.parse(req.url, true);
  const myRoute = "/"+q.pathname.split("/")[1];

  switch (myRoute) {
    case "/api":
        if (req.method === "GET") {
            //response headers
            res.writeHead(200, { "Content-Type": "application/json" });
            //set the response
            res.write("Hi there, This is a Vanilla Node.js API");
            //end the response
            res.end();
        }
    
        // If no route present
        else {
            res.writeHead(404, { "Content-Type": "application/json" });
            res.end(JSON.stringify({ message: "Route not found" }));
        }
        break;
    case "/users":
        if (req.method === "GET") {
            const readuserdb = fs.readFileSync('userdb.json', {encoding:'utf8'});
            console.log(readuserdb);

            //response headers
            res.writeHead(200, { "Content-Type": "application/json" });
            //set the response
            res.write(readuserdb);
            //end the response
            res.end();
            
        }

        else if (req.method === "POST") {
            const chunks = [];
  req.on("data", (chunk) => {
    chunks.push(chunk);
  });
  req.on("end", () => {
    //console.log("all parts/chunks have arrived");
    const data = Buffer.concat(chunks);
    const newuser = JSON.parse(data);
    const uuid = crypto.randomBytes(16).toString("hex");
    newuser.id=uuid
    console.log(newuser)
    //const userdbjson = JSON.stringify(userdb);
    const readuserdb = fs.readFileSync('userdb.json', {encoding:'utf8'});  
    const alluser = JSON.parse(readuserdb);
    alluser.push(newuser);
    
    //console.log(alluser);

    //console.log("Data: ", userdb);
    fs.writeFileSync('userdb.json', JSON.stringify(alluser));

  });
  
            res.writeHead(200, { "Content-Type": "text/html" });
            //set the response
            res.write("MSG POST");
            //end the response
            res.end();

        }
        else if (req.method === "PUT") {
            res.writeHead(200, { "Content-Type": "text/html" });
            //set the response
            res.write("MSG PUT");
            //end the response
            res.end();

        }
        
    
        // If no route present
        else {
            res.writeHead(404, { "Content-Type": "application/json" });
            res.end(JSON.stringify({ message: "Route not found" }));
        }
        break;
        case "/user":
            //console.log(q.pathname);

            const id = q.pathname.split("/")[2];
            console.log(id);
            arr = [];
            const readuserdb = fs.readFileSync('userdb.json', {encoding:'utf8'});  
            for(let i = 0; i < readuserdb.length; i++) {
                let obj = readuserdb[i];
            
                console.log(obj["id"]);
            }
            if (req.method === "GET") {
                res.writeHead(200, { "Content-Type": "application/json" });
                
                //set the response
                res.write("MSG GET");
                //end the response
                res.end();
            

    
            }
            else if (req.method === "PUT") {
                res.writeHead(200, { "Content-Type": "application/json" });
                //set the response
                res.write("MSG PUT");
                //end the response
                res.end();
            

    
            }
            else if (req.method === "DELETE") {
                res.writeHead(200, { "Content-Type": "application/json" });
                //set the response
                res.write("MSG DEL");
                //end the response
                res.end();
            

    
            }
            break;
        case "/":
            res.writeHead(200, { "Content-Type": "text/html" });
            //set the response
            res.write("<h1>Welcome</h1>");
            //end the response
            res.end();
            break;
    default :
    res.writeHead(200, { "Content-Type": "text/html" });
            //set the response
            res.write("<h1>404 Not Found</h1>");
            //end the response
            res.end();
        break;
}
};
 
const host = 'localhost';
const port = 8000;

const server = http.createServer(requestListener);
server.listen(port, host, () => {
    console.log(`Server is running on http://${host}:${port}`);
});