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server.js
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server.js
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const app = require('express')();
const bodyParser = require('body-parser');
expressValidator = require('express-validator')
var database_conn = require('./database').database;
const species = [
{
name: 'mallard'
},
{
name: 'redhead'
},
{
name: 'gadwall'
},
{
name: 'canvasback'
},
{
name: 'lesser scaup'
}
];
app.use(bodyParser.json());
app.use(expressValidator([]));
app.get('/sightings', (req, res) => {
q = {};
if(req.query.month){
var nextMonth = new Date(req.query.month);
nextMonth.setMonth(nextMonth.getMonth() + 1);
nextMonth = nextMonth.toISOString().split('.')[0] + 'Z';
q.dateTime = {$gte: req.query.month, $lte: nextMonth};
}
else if(req.query.timespan){
delta = req.query.timespan.split('--');
if(!delta[1]) delta[1] = new Date().toISOString().split('.')[0] + 'Z';
else delta[1] = new Date(delta[1]).toISOString().split('.')[0] + 'Z';
q.dateTime = {$gte: delta[0], $lte: delta[1]};
}
if(req.query.species){
q.species = req.query.species
}
if(req.query.amount){
q.count = {$gte: req.query.amount}
}
//console.log(q);
database_conn.getSightings(q, {_id: 0, __v: 0}).then((sightings) => {
console.log(sightings)
res.json(sightings);
}).catch((err) => {
console.log(err);
if(err.name == 'CastError') res.status(400).send(err.message);
else res.status(500).send(err.message | "Server error while fetching sightings.");
});
});
app.get('/sighting/:id', (req, res) => {
var sightingId = req.params.id;
database_conn.getSighting({"id": sightingId}, {_id: 0, __v: 0}, {}).then((sighting) => {
console.log(sighting);
var status = res.statusCode;
var content = "json";
if(sighting == null) {
status = 404;
content = "";
sighting = "Could not find sighting.";
}
res.status(status).contentType(content).send(sighting);
}).catch((err) => {
console.log(err);
res.status(500).send( err.message | "Server error while fetching a sighting.");
});
});
app.put('/sighting/:id', (req, res) => {
var sightingId = req.params.id;
if(req.body.id){
delete req.body.id;
}
database_conn.updateSighting({"id": sightingId}, req.body, {runValidators: true}).then((raw) => {
// console.log(raw);
var status = res.statusCode;
if(!raw.n) {
status = 404;
raw = "Could not find sighting.";
}
else if(!raw.nModified){
status = 400;
raw = "Update data was invalid.";
}
else {
raw = "Sighting updated successfully.";
}
res.status(status).send(raw);
}).catch((err) => {
console.log(err);
if(err.name == "ValidationError"){
var message = err.message + ":";
for(prop in err.errors) {
message = message + " " + err.errors[prop].message;
}
res.status(400).send(message);
}
else {
res.status(500).send("Server error while fetching sightings.");
}
});
});
app.delete('/sighting/:id', (req, res) => {
var sightingId = req.params.id;
database_conn.deleteSighting({"id": sightingId}).then((raw) => {
// console.log(raw);
var status = res.statusCode;
if(!raw.result.n) {
status = 404;
raw = "Could not find sighting.";
}
else {
raw = "Sighting deleted successfully.";
}
res.status(status).send(raw);
}).catch((err) => {
console.log(err);
res.status(500).send("Server error while fetching a sighting.");
});
});
app.post('/sightings', (req, res) => {
req.sanitize('species').trim();
req.sanitize('species').escape();
req.sanitize('description').trim();
req.sanitize('description').escape();
req.sanitize('dateTime').trim();
req.sanitize('dateTime').escape();
req.validate('dateTime').isISO8601();
req.getValidationResult().then((result) => {
if(!result.isEmpty()){
console.log(result);
res.status(400).send("Sighting validation failed: dateTime is not a valid ISO-8601 date [YYYY]-[MM]-[DD]T[hh]:[mm]:[ss]Z.");
return;
}
database_conn.getSighting({}, {}, {sort: "-id"}).then((sighting) => {
req.body.id = (sighting.id + 1).toString();
database_conn.addSighting(req.body).then((sighting) => {
console.log(sighting);
res.json(sighting);
}).catch((err) => {
console.log(err);
if(err.name == "ValidationError"){
var message = err.message + ":";
for(prop in err.errors) {
message = message + " " + err.errors[prop].message;
}
res.status(400).send(message);
}
else {
res.status(500).send("Server error while fetching sightings.");
}
});
}).catch((err) => {
console.log(err);
res.status(500).send("Server error while fetching sightings.");
});
});
});
app.get('/species', (req, res) => {
database_conn.getSpecies({}, "name", {select: "-_id"}).then((species) => {
console.log(species)
res.json(species);
}).catch((err) => {
console.log(err);
res.status(500).send("Server error while fetching species.");
});
});
const port = process.env.PORT ? process.env.PORT : 8081;
var Collection;
// First connect to database..
var promise = database_conn.openConnection();
promise.then((db) => {
console.log("Database online");
// and after that is done start the server.
const server = app.listen(port, () => {
console.log("Server listening port %s", port);
});
}).catch((err) => {
console.log(err);
});