Combining blueprints with resourceful routing

Now, we will create the resources that compose our main building blocks for the RESTful API. First, we will create a few instances that we will use in the different resources. Then, we will create a MessageResource class, that we will use to represent the message resource. Create a new views.py file within the api folder and add the following lines. The code file for the sample is included in the restful_python_chapter_06_01 folder, as shown:

from flask import Blueprint, request, jsonify, make_response 
from flask_restful import Api, Resource 
from models import db, Category, CategorySchema, Message, MessageSchema 
from sqlalchemy.exc import SQLAlchemyError 
import status 
 
 
api_bp = Blueprint('api', __name__) 
category_schema = CategorySchema() 
message_schema = MessageSchema() 
api = Api(api_bp) 
 
 
class MessageResource(Resource): 
    def get(self, id): 
        message = Message.query.get_or_404(id) 
        result = message_schema.dump...