The initial cut of chuck

initial.go

// Chucknorris is the struct used to  unmarshal the JSON response from the URL
type Chucknorris struct {
	Category []string `json:"category"`
	IconURL  string   `json:"icon_url"`
	ID       string   `json:"id"`
	URL      string   `json:"url"`
	Value    string   `json:"value"`
}

/*  getJokes takes the API url as the parameter and fetch jokes from it,
 *   here we have assumed it to be of ChuckNorris type
 */

//TODO: Remove the dependency on the hardcoded struct
func getJokes(URL string) (string, error) {
	req, err := http.NewRequest("GET", URL, nil)
	if err != nil {
		return "", fmt.Errorf("No request formed %v", err)
	}

	client := &http.Client{}
	resp, err := client.Do(req)
	if err != nil {
		return "", fmt.Errorf("No response: %v", err)
	}
	defer resp.Body.Close()

	respData, err := ioutil.ReadAll(resp.Body)
	if err != nil {
		return "", fmt.Errorf("Read error")
	}

	var joke Chucknorris
	if err = json.Unmarshal(respData, &joke); err != nil {
		return "", fmt.Errorf("Error in unmarsheling, %v", err)
	}

	return joke.Value, nil
}