var express = require("express");
var app = express();
var fs = require("fs");
var dt = require('./utils');
var MongoClient = require('mongodb').MongoClient;
var url = 'mongodb://localhost:27017';
app.listen(3000, () => {
console.log("Server running on port 3000");
});
// this is the old way of setting up routes
app.get("/", (req, res, next) =>
{
fs.readFile('index.html', function(err, data) {
res.writeHead(200, {'Content-Type': 'text/html'});
res.write(data);
return res.end();
});
});
// this is the old way of setting up routes
app.get("/sayhello", (req, res, next) =>
{
res.send("Hello World"); // no need to set content type, res.send() works out type from args passed in and sends header
return res.end();
});
// this is the old way of setting up routes
app.get("/sayhello-with-status", (req, res, next) =>
{
// if you uncomment the line below, you will get the error "[ERR_HTTP_HEADERS_SENT]: Cannot set headers after they are sent to the client"
// this is because the second send() is also setting the header, so it is being set twice before the end() call
//res.status(200).send("Selvyn says - ");
res.status(404).send("Hello World with status"); // no need to set content type, res.send() works out type from args passed in and sends header
return res.end();
});
// the express way of setting up routes
app.route("/users")
.get(function(req, res, next)
{
res.writeHead(200, {'Content-Type': 'text/html'}); // When using res.write() you must send the header options
process.stdout.write("Test\n"); // this writes out to the terminal where you ran the program from
res.write("Listing all users"); // this writes back to the client browser but does send http header
return res.end();
});
app.get("/get-dateandtime", (req, res, next) =>
{
// if you uncomment the line below, you will get the error "[ERR_HTTP_HEADERS_SENT]: Cannot set headers after they are sent to the client"
// this is because the second send() is also setting the header, so it is being set twice before the end() call
//res.status(200).send("Selvyn says - ");
res.status(200).send(dt.myDateTime()); // no need to set content type, res.send() works out type from args passed in and sends header
return res.end();
});
app.route("/users")
.get(function(req, res, next)
{
res.status(200).send(dt.myDateTime()); // no need to set content type, res.send() works out type from args passed in and sends header
return res.end();
});
app.route("/db-connect")
.get(function(req, res, next)
{
MongoClient.connect(url, function(err, db)
{
var dbo = db.db("skyteam");
if( dbo !== null )
res.status(200).send("DB Connected");
else
res.status(503).send("Service Unavailable");
return res.end();
});
});