Added a way to delete a specific subcategory.

main.go

@@ -30,6 +30,7 @@ func main() {
 	//Note: seems adding a trailing slash allows routing URLs like /category/ID#
 	//No need for query parameters.
 	http.HandleFunc("/category/", category)
+	http.HandleFunc("/subcategory/", subcategory)
 
 	err := http.ListenAndServe(":8088", nil)
 
@@ -63,6 +64,36 @@ func category(w http.ResponseWriter, r *http.Request) {
 	}
 }
 
+func subcategory(w http.ResponseWriter, r *http.Request) {
+	switch r.Method {
+	case "DELETE":
+		deleteSubcategoryHandler(w, r)
+	default:
+		w.WriteHeader(http.StatusMethodNotAllowed)
+		w.Write([]byte("Method not allowed"))
+	}
+}
+
+func deleteSubcategoryHandler(w http.ResponseWriter, r *http.Request) {
+	id := strings.TrimPrefix(r.URL.Path, "/subcategory/")
+
+	value, err := strconv.ParseInt(id, 0, 64)
+
+	if err != nil {
+		w.WriteHeader(http.StatusBadRequest)
+		w.Write([]byte(err.Error()))
+		return
+	}
+
+	if !deleteSubcategory(value) {
+		w.WriteHeader(http.StatusBadRequest)
+		w.Write([]byte(fmt.Sprintf("Failed to delete %d", value)))
+		return
+	}
+
+	w.WriteHeader(http.StatusOK)
+}
+
 func getCategoryHandler(w http.ResponseWriter, r *http.Request) {
 	id := strings.TrimPrefix(r.URL.Path, "/category/")