GET /deals/:latitude/:longitude

app.coffee

# Create a GET route, with named route segments for the latitude and longitude
app.get '/deals/:latitude/:longitude', (req, resp) ->

  # Set the response content type to JSON
  resp.contentType("application/json")

  # Build the URI for retrieving deals from TreatMe
  api_options = {
    host: 'treatme.co.nz',
    port: 80,
    path: "/now/GetCategorizedDeals?latitude=#{req.params['latitude']}&longitude=#{req.params['longitude']}"
  }

  try
 
    # Make the HTTP request - the callback will be executed when the 
    # response starts to come in, and by listening for the 'data' and 'end' 
    # events, we can build up the JSON we want to send back to the front-end
    http.get api_options, (res) ->

      res.on 'error', ->
        resp.send(error_json(), 500)

      json = ""
      res.on 'data', (chunk) ->
        json += chunk

      res.on 'end', ->
        resp.send(json)
  catch error
    # Respond with an error message if anything went wrong
    resp.send(error_json(), 500)