sanic/examples/blueprint_middlware_execution_order.py

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from sanic import Sanic, Blueprint
from sanic.response import text
'''
Demonstrates that blueprint request middleware are executed in the order they
are added. And blueprint response middleware are executed in _reverse_ order.
On a valid request, it should print "1 2 3 6 5 4" to terminal
'''
app = Sanic(__name__)
bp = Blueprint("bp_"+__name__)
@bp.middleware('request')
def request_middleware_1(request):
print('1')
@bp.middleware('request')
def request_middleware_2(request):
print('2')
@bp.middleware('request')
def request_middleware_3(request):
print('3')
@bp.middleware('response')
def resp_middleware_4(request, response):
print('4')
@bp.middleware('response')
def resp_middleware_5(request, response):
print('5')
@bp.middleware('response')
def resp_middleware_6(request, response):
print('6')
@bp.route('/')
def pop_handler(request):
return text('hello world')
app.blueprint(bp, url_prefix='/bp')
app.run(host="0.0.0.0", port=8000, debug=True, auto_reload=False)