Handling endpoints

The final piece of the puzzle is the handlePolls function, which will use the helpers to understand the incoming request and access the database and generate a meaningful response that will be sent back to the client. We also need to model the poll data that we were working with in the previous chapter.

Create a new file called polls.go and add the following code:

package main 
import "gopkg.in/mgo.v2/bson" 
type poll struct { 
  ID      bson.ObjectId  `bson:"_id" json:"id"` 
  Title   string         `json:"title"` 
  Options []string       `json:"options"` 
  Results map[string]int `json:"results,omitempty"` 
  APIKey  string         `json:"apikey"` 
} 

Here, we define a structure called poll, which has five fields that in turn describe the polls being created and maintained by the code we wrote in the previous chapter. We have also added the APIKey field, which you probably wouldn't do in the real world but which will allow us to demonstrate how we extract the API key...