add vhosts to blueprints

examples/vhosts.py

@@ -1,11 +1,15 @@
 from sanic.response import text
 from sanic import Sanic
+from sanic.blueprints import Blueprint
 
 # Usage
 # curl -H "Host: example.com" localhost:8000
 # curl -H "Host: sub.example.com" localhost:8000
+# curl -H "Host: bp.example.com" localhost:8000/question
+# curl -H "Host: bp.example.com" localhost:8000/answer
 
 app = Sanic()
+bp = Blueprint("bp", host="bp.example.com")
 
 @app.route('/', host="example.com")
 async def hello(request):
@@ -14,5 +18,15 @@ async def hello(request):
 async def hello(request):
     return text("42")
 
+@bp.route("/question")
+async def hello(request):
+    return text("What is the meaning of life?")
+
+@bp.route("/answer")
+async def hello(request):
+    return text("42")
+
+app.register_blueprint(bp)
+
 if __name__ == '__main__':
     app.run(host="0.0.0.0", port=8000)