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app.js
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app.js
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var express = require('express'),
passport = require('passport'),
InstagramStrategy = require('passport-instagram').Strategy,
request = require('request');
var INSTAGRAM_CLIENT_ID = process.env.HEXAGRAM_CLIENT_ID;
var INSTAGRAM_CLIENT_SECRET = process.env.HEXAGRAM_CLIENT_SECRET;
passport.serializeUser(function(user, done) {
done(null, user);
});
passport.deserializeUser(function(obj, done) {
done(null, obj);
});
passport.use(new InstagramStrategy({
clientID: INSTAGRAM_CLIENT_ID,
clientSecret: INSTAGRAM_CLIENT_SECRET,
callbackURL: "http://hexagram.gpalmer.me/auth/instagram/callback"
},
function(accessToken, refreshToken, profile, done) {
storage[profile.username] = accessToken;
process.nextTick(function () {
return done(null, profile);
});
}
));
var storage = {};
var app = express();
app.configure(function() {
app.use(express.logger());
app.use(express.cookieParser());
app.use(express.bodyParser());
app.use(express.methodOverride());
app.use(express.session({ secret: 'keyboard cat' }));
app.use(passport.initialize());
app.use(passport.session());
app.use(app.router);
app.use(express.static(__dirname + '/public'));
});
app.get('/', ensureAuthenticated, function(req, res){
res.sendfile('index.html');
});
app.get('/login', function(req, res){
res.sendfile('login.html');
});
app.get('/hex', function(req, res){
hashtag = req.query.hashtag[0] === '#' ? req.query.hashtag.slice(1) : req.query.hashtag;
res.redirect('/'+hashtag);
});
app.get('/api/images/:hashtag', function(req, res){
request((req.query.url || createIgUrl('images', req.params.hashtag, storage[req.user.username])), function(error, response, body) {
if (error) {
console.log('ERROR!:', error);
} else {
var igResponse = JSON.parse(body);
res.send({
media: igResponse.data,
next_url: igResponse.pagination.next_url});
}
});
});
app.get('/api/tags/:tag', function(req, res){
request(createIgUrl('tags', req.params.tag, storage[req.user.username]), function(error, response, body) {
if (error) {
console.log('ERROR!:', error);
} else {
var igResponse = JSON.parse(body);
res.send({
tags: igResponse.data
});
}
});
});
app.get('/auth/instagram',
passport.authenticate('instagram'),
function(req, res) {});
app.get('/auth/instagram/callback',
passport.authenticate('instagram', { failureRedirect: '/login' }),
function(req, res) {
res.redirect('/');
});
app.get('/logout', function(req, res){
req.logout();
res.redirect('/');
});
app.get('/:hashtag', ensureAuthenticated, function(req, res) {
console.log('req.params', req.params);
console.log('req.query', req.query);
res.sendfile('hex.html');
});
var port = process.env.PORT || 3000;
app.listen(port);
function ensureAuthenticated(req, res, next) {
if (req.isAuthenticated()) { return next(); }
res.redirect('/login');
}
function createIgUrl(type, hashtag, accessToken) {
if (type === 'images') {
return 'https://api.instagram.com/v1/tags/'+hashtag+'/media/recent?access_token='+accessToken;
} else if (type === 'tags') {
return 'https://api.instagram.com/v1/tags/search?q='+hashtag+'&access_token='+accessToken;
}
}