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server.js
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server.js
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var config = {DataBaseName: "snakegame", collection: "scores"};
var express = require('express');
var cors = require('cors');
var bodyParser = require("body-parser");
var app = express();
var atob = require('atob');
app.use(cors());
app.use(bodyParser.json()); // support json encoded bodies
app.use(bodyParser.urlencoded({extended: true})); // support encoded bodies
var MongoClient = require('mongodb').MongoClient;
function writeToDB(obj) {
MongoClient.connect(process.env.mongoUrl, function(err, db) {
if (err) throw err;
var dbo = db.db(config.DataBaseName);
dbo.collection(config.collection).insertOne(obj, function (err, res) {
if (err) throw err;
console.log(`1 document inserted -> [${JSON.stringify(obj)}]`);
db.close();
});
});
}
app.get('/scores', async function (req, res) {
console.log("got /score request.");
MongoClient.connect(process.env.mongoUrl, function(err, db) {
if (err) throw err;
var dbo = db.db(config.DataBaseName);
dbo.collection(config.collection).find({}).toArray(function (err, result) {
if (err) throw err;
result.sort(function(a,b){return b.score - a.score});
// console.log(result);
db.close();
res.end(JSON.stringify(result));
});
});
});
app.post('/sendScore', function (req, res) {
console.log("got post sendScore");
var name = req.body.name;
var score = req.body.score;
var events = req.body.events;
try{
events = JSON.parse(atob(events));
var eventsScore = 0;
for(var i=0; i<events.length; i++){
eventsScore = eventsScore + events[i].score;
}
if(score == eventsScore){
writeToDB({name, score}, "scores");
//send to DB:
console.log("successfully got score=" + score + " to " + name);
res.send("successfully got score=" + score + " to " + name);
}else{
console.log("Data not valid.");
res.send("Data not valid.");
}
}catch (err){
console.log("Error accord:"+err);
res.send("Error accord");
}
});
app.post('/deleteScore', function (req, res) {
console.log("got delete deleteScore");
var name = req.body.name;
var score = req.body.score;
MongoClient.connect(process.env.mongoUrl, function(err, db) {
if (err) throw err;
var dbo = db.db(config.DataBaseName);
dbo.collection(config.collection).deleteOne({name: name, score:Number(score)}, function(err, obj) {
if (err) throw err;
console.log("1 document deleted");
db.close();
res.send("successfully delete score=" + score + " to " + name);
});
});
});
// Initialize the app.
var server = app.listen(process.env.PORT || 8080, function () {
var port = server.address().port;
console.log("App now running on port", port);
});