Convert catID to catTitle via CURT API

gistfile1.go

type APICategory struct {
	Parent         Category
	Conent         []Content
	Sub_categories []Category
}

type Category struct {
	CatID           int
	DateAdded       string
	ParentID        int
	CatTitle        string
	ShortDesc       string
	LongDesc        string
	Image           string
	IsLifestyle     int
	CodeID          int
	Sort            int
	VehicleSpecific bool
}

type Content struct {
	isHTML  bool
	cType   string
	content string
}

func CategoryParts(w http.ResponseWriter, r *http.Request) {
	params := r.URL.Query()
	id := params.Get(":id")

	var buf bytes.Buffer
	buf.WriteString("https://api.curtmfg.com/v2/GetCategory?dataType=json&catID=")
	buf.WriteString(id)

	req, _ := http.NewRequest("GET", buf.String(), nil)

	// Set up Tansport using app engines urlfetch service
	t := &urlfetch.Transport{Context: appengine.NewContext(r)}

	// Roundtrip our request to the api and handle response
	r2, err := t.RoundTrip(req)
	if err != nil {
		return
	}
	if r2.StatusCode != 200 {
		return
	}

	// Set up close of body data - save memory
	defer r2.Body.Close()

	// Parse our response data int a buffer 
	// then unmarshal the json into our Customer struct
	buf.Reset()
	buf.ReadFrom(r2.Body)

	var i APICategory
	err = json.Unmarshal(buf.Bytes(), &i)
	title := i.Parent.CatTitle
	if err != nil || len(title) == 0 {
		http.Redirect(w, r, "/", http.StatusFound)
	} else {
		buf.Reset()
		buf.WriteString("/#category/")
		buf.WriteString(title)
		http.Redirect(w, r, buf.String(), http.StatusFound)
	}

}