index

index.js

@@ -4,32 +4,36 @@ var url = require('url');
 var request = require('request');
 
 var format = ".json";
-var apikey = process.env.WU_ACCESS
+var apikey = process.env.WU_ACCESS  //WU API key; will be set in Heroku
 
 var bodyParser = require('body-parser');
 app.use(bodyParser.json());
 app.use(bodyParser.urlencoded({ extended: true }));
 
+//use port is set in the environment variable, or 9001 if it isn’t set.
 app.set('port', (process.env.PORT || 9001));
 
+//for testing that the app is running
 app.get('/', function(req, res){
-  res.send('It works!');
+  res.send('Running!!');
 });
 
+//app.post is triggered when a POST request is sent to the URL ‘/post’
 app.post('/post', function(req, res){
+  //take a message from Slack slash command
   var query = req.body.text
+
   var parsed_url = url.format({
     pathname: 'http://api.wunderground.com/api/' + apikey + '/conditions/q/' + req.body.text + format,
   });
 
-
   console.log(parsed_url);
 
   request(parsed_url, function (error, response, body) {
     if (!error && response.statusCode == 200) {
       var data = JSON.parse(body);
-      var first_url = data.current_observation.temperature_string;
-      var weatherC = data.current_observation.weather
+      var temperature = data.current_observation.temperature_string;
+      var weatherCondition = data.current_observation.weather
       var icon_url = data.current_observation.icon_url
       var location = data.current_observation.display_location.full
 
@@ -37,17 +41,19 @@ app.post('/post', function(req, res){
         response_type: "in_channel",
         "attachments": [
           {
-        "text": "Location: " + location + "\n" + "Temperature: " + first_url + "\n" + "Condition: " + weatherC,
-        "image_url": icon_url,
+            "text": "Location: " + location + "\n"
+                  + "Temperature: " + temperature + "\n"
+                  + "Condition: " + weatherCondition,
+            "image_url": icon_url,
           }
         ]
       };
-
       res.send(body);
     }
   });
 });
 
+//tells Node which port to listen on
 app.listen(app.get('port'), function() {
   console.log('Node app is running on port', app.get('port'));
 });