feat(examples): class based routing example

examples/class_based_view/blueprint.py

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+from sanic.blueprints import Blueprint
+from sanic.views import HTTPMethodView
+from sanic_openapi import doc
+from sanic.response import json
+
+blueprint = Blueprint('Class-based View', url_prefix='/class-based-view')
+
+
+class MyView(HTTPMethodView):
+    @doc.summary("Get my view")
+    def get(self, request):
+        return json({"method": "GET"})
+
+    @doc.summary("Post my view")
+    @doc.consumes({"view": {"name": str}}, location="body")
+    def post(self, request):
+        return json({"method": "POST"})
+
+
+blueprint.add_route(MyView.as_view(), '/view', strict_slashes=True)

examples/class_based_view/main.py

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+from sanic_openapi import doc
+from sanic_openapi import openapi_blueprint, swagger_blueprint
+from sanic import Sanic
+from sanic.response import json
+
+from blueprint import blueprint
+
+app = Sanic()
+
+app.blueprint(openapi_blueprint)
+app.blueprint(swagger_blueprint)
+app.blueprint(blueprint)
+
+
+@app.post("/plain", strict_slashes=True)
+@doc.summary("Creates a user")
+@doc.consumes({"user": {"name": str}}, location="body")
+async def create_user(request):
+    return json({})
+
+
+app.config.API_VERSION = 'pre-alpha'
+app.config.API_TITLE = 'Class Based View Demonstration API'
+app.config.API_TERMS_OF_SERVICE = 'Use with caution!'
+app.config.API_CONTACT_EMAIL = 'guoli-lyu@hotmail.com'
+
+app.run(host="0.0.0.0", debug=True)