There are many different ways to organize your Flask-RESTful app, but here we’ll describe one that scales pretty well with larger apps and maintains a nice level organization.
The basic idea is to split your app into three main parts: the routes, the resources, and any common infrastructure.
Here’s an example directory structure:
myapi/
__init__.py
app.py # this file contains your app and routes
resources/
__init__.py
foo.py # contains logic for /Foo
bar.py # contains logic for /Bar
common/
__init__.py
util.py # just some common infrastructure
The common directory would probably just contain a set of helper functions to fulfill common needs across your application. It could also contain, for example, any custom input/output types your resources need to get the job done.
In the resource files, you just have your resource objects. So here’s what <span class="pre">foo.py</span> might look like:
from flask_restful import Resource
class Foo(Resource):
def get(self):
pass
def post(self):
pass
The key to this setup lies in <span class="pre">app.py</span>:
from flask import Flask
from flask_restful import Api
from myapi.resources.foo import Foo
from myapi.resources.bar import Bar
from myapi.resources.baz import Baz
app = Flask(__name__)
api = Api(app)
api.add_resource(Foo, '/Foo', '/Foo/<string:id>')
api.add_resource(Bar, '/Bar', '/Bar/<string:id>')
api.add_resource(Baz, '/Baz', '/Baz/<string:id>')