basic blueprint functionality

sanic/blueprints.py

@@ -1,24 +1,68 @@
-from sanic import Sanic
-from sanic import Blueprint
-from sanic.response import json, text
 
 
-app = Sanic(__name__)
+class BlueprintSetup():
-blueprint = Blueprint('name', url_prefix='/my_blueprint')
+    """
-blueprint2 = Blueprint('name2', url_prefix='/my_blueprint2')
+    """
+
+    def __init__(self, blueprint, app, options):
+        self.app = app
+        self.blueprint = blueprint
+        self.options = options
+
+        url_prefix = self.options.get('url_prefix')
+        if url_prefix is None:
+            url_prefix = self.blueprint.url_prefix
+
+        #: The prefix that should be used for all URLs defined on the
+        #: blueprint.
+        self.url_prefix = url_prefix
+
+    def add_url_rule(self, uri, methods=None, handler=None, **options):
+        """A helper method to register a handler to the application url routes.
+
+        """
+        if self.url_prefix:
+            uri = self.url_prefix + uri
+
+        self.app.router.add(uri, methods, handler)
 
 
-@blueprint.route('/foo')
+class Blueprint():
-async def foo(request):
+    def __init__(self, name, url_prefix=None):
-    return json({'msg': 'hi from blueprint'})
+        self.name = name
+        self.url_prefix = url_prefix
+        self.deferred_functions = []
+
+    def record(self, func):
+        """Registers a callback function that is invoked when the blueprint is
+        registered on the application.
+
+        """
+        self.deferred_functions.append(func)
 
 
-@blueprint2.route('/foo')
+    def make_setup_state(self, app, options):
-async def foo2(request):
+        """
-    return json({'msg': 'hi from blueprint2'})
+        """
+        return BlueprintSetup(self, app, options)
 
+    def register(self, app, options):
+        """
+        """
+        state = self.make_setup_state(app, options)
+        for deferred in self.deferred_functions:
+            deferred(state)
 
-app.register_blueprint(blueprint)
+    def route(self, uri, methods=None):
-app.register_blueprint(blueprint2)
+        """
+        """
+        def decorator(handler):
+            self.add_url_rule(uri=uri, methods=methods, handler=handler)
+            return handler
+        return decorator
 
-app.run(host="0.0.0.0", port=8000, debug=True)
+    def add_url_rule(self, uri, methods=None, handler=None):
+        """
+        """
+        self.record(lambda s:
+            s.add_url_rule(uri, methods, handler))