Flask Academy · 课时

资源类与 Api 对象

将端点建模为带动词的资源

资源类与 Api 对象 是 CoddyKit 上的免费 Flask Academy 课时。这是第 1 节课，共 4 节。你可以在下方免费阅读本课时的完整内容 — 然后在浏览器中使用内置代码编辑器和全天候 AI 导师进行实践。这是 Flask Academy 学习路径的一部分，你的进度在网页和 CoddyKit 应用中同步。 Flask Academy 课程共包含 4 节课。

本课时的部分内容尚未翻译，以英文显示。

A Cleaner Way to Build APIs

Plain Flask routes work, but for APIs Flask-RESTful gives you a tidy, class-based structure that scales as endpoints grow. 🧩

Install the Extension

Flask-RESTful ships separately. Add it to your project with pip before you import anything from it.

pip install flask-restful

Import the Pieces

You need two names: Api, the manager that wires endpoints, and Resource, the base class for each one.

from flask_restful import Api, Resource

Wrap Your App in an Api

Create an Api object around your Flask app. It becomes the registry where every resource gets mounted.

app = Flask(__name__)
api = Api(app)

What a Resource Is

A Resource is a Python class representing one thing in your API, like a task or a user, grouped in one place.

class HelloWorld(Resource):
    pass

Subclass Resource

Every endpoint you build starts by subclassing Resource. Methods inside it will answer HTTP verbs.

class TaskList(Resource):
    def get(self):
        return {"tasks": []}

Mount It on a URL

Use add_resource to attach a resource class to a URL path. That is how the Api learns where it lives.

api.add_resource(TaskList, "/tasks")

Return Plain Dicts

Just return a Python dict and Flask-RESTful serializes it to JSON for you, no manual jsonify needed. ✨

def get(self):
    return {"message": "hello"}

No More Route Decorators

Notice you skipped @app.route entirely. The Api object and add_resource replace the decorator workflow.

Run It Like Any Flask App

Startup is unchanged: the same app.run serves your resource-based API on the dev server.

if __name__ == "__main__":
    app.run(debug=True)

Why Classes Help

Grouping related verbs in one class keeps each endpoint self-contained and far easier to read than scattered functions.

Quick Check

Which object connects a Resource class to a URL?

Recap: Resources and the Api

You wrapped your app in an Api, subclassed Resource, and mounted it with add_resource. A clean API skeleton! 🎉

常见问题解答

「资源类与 Api 对象」课时是免费的吗？

是的 — 「资源类与 Api 对象」的完整文本可在网页上免费阅读。要进行交互式练习（内置代码编辑器和全天候 AI 导师）并解锁 Flask Academy 课程的其余内容，请升级到 CoddyKit PRO。 Flask Academy 课程共包含 4 节课。

「资源类与 Api 对象」这节课中我会学到什么？

将端点建模为带动词的资源你通过在浏览器中直接运行的动手代码来练习 Flask Academy，全天候 AI 导师会在你学习这节课的过程中回答你的问题。

学习 Flask Academy 需要有经验吗？

无需任何先前经验。CoddyKit 上的 Flask Academy 课程适合初学者到高级学习者，你可以从这里开始或从头开始，按照自己的节奏学习。这是第 1 节课，共 4 节。

「资源类与 Api 对象」课时需要多长时间？

大多数 CoddyKit 课程大约需要 5–10 分钟。每节课都很精短且互动，所以你能稳步进步，并在网页和应用中从离开的地方继续。

我能在这节 Flask Academy 课中编写并运行代码吗？

能。每节 Flask Academy 课都包含内置代码编辑器，你可以在浏览器中直接编写并运行真实代码，并获得即时 AI 反馈 — 无需本地设置。

此课程中的所有课时

← 返回 Flask Academy