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server.js
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server.js
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var http = require('http');
var url = require('url');
var IP = process.env.IP || "0.0.0.0";
var PORT = process.env.PORT || 8080;
var API_TOKEN = process.env.API_TOKEN;
if (!API_TOKEN) {
console.error("API_TOKEN=your_token_here node %s", __filename);
console.error("https://developer.uber.com/v1/tutorials/#server-side-authentication");
process.exit(1);
}
var uber = require('./index')(API_TOKEN);
http.createServer(function (req, res) {
var ip = uber.getIp(req);
console.log("%s %s GET %s", new Date().getTime(), ip, req.url);
var url_parts = url.parse(req.url, true);
if (!url_parts.query.latitude || !url_parts.query.longitude) {
res.writeHead(400, {'Content-Type': 'application/json'});
res.end(JSON.stringify({
"message": "Missing parameters: latitude, longitude."
}));
return;
}
var cb = function(err, results) {
if (err) {
err.code = err.code || 500;
err.message = err.message || "Internal Error";
console.error(err);
res.writeHead(err.code, {'Content-Type': 'application/json'});
res.end(JSON.stringify({message: err.message}));
return;
}
var is_available = results.products.length !== 0;
var products = results.products;
var times = results.times;
// no cars, check area available or not
if (times.length === 0 && !is_available) {
res.writeHead(200, {'Content-Type': 'application/json'});
res.end(JSON.stringify({times: [], is_available: is_available}));
return;
}
if (products && products.length > 0) {
products.forEach(function(productP) {
times.forEach(function(productT) {
if (productP.product_id === productT.product_id) {
productT.image = productP.image;
productT.description = productP.description;
}
});
});
}
res.writeHead(200, {'Content-Type': 'application/json'});
res.end(JSON.stringify({times: times, is_available: is_available}));
return;
};
var results = {
products: null,
times: null
};
var create_cb = function(results, prop, cb) {
return function(err, result) {
if (err) {
cb(err, null);
return;
}
results[prop] = result;
for (var key in results) {
if (results[key] === null) return;
}
cb(null, results);
};
};
uber.fetchProducts(url_parts.query.latitude, url_parts.query.longitude,
create_cb(results, "products", cb)
);
uber.fetchEstimateTime(url_parts.query.latitude,
url_parts.query.longitude,
url_parts.query.surge !== '0',
create_cb(results, "times", cb));
}).listen(PORT, IP);
console.log('Server running at http://%s:%s', IP, PORT);