Tornado POST 405: method not allowed

Question

For some reason, I cannot use post methods in torando.

Even the hello_world example does not work when I change the message.

import tornado.ioloop import tornado.web class MainHandler(tornado.web.RequestHandler): def post(self): self.write("Hello, world") application = tornado.web.Application([ (r"/", MainHandler), ]) if __name__ == "__main__": application.listen(8888) tornado.ioloop.IOLoop.instance().start() 

It prohibits method 405. Any suggestions?

Answer 1

You still need to get if you want to access the page, because access to the page using a browser request using the get method.

 import tornado.ioloop import tornado.web class MainHandler(tornado.web.RequestHandler): def post(self): self.write("Hello, world") get = post # <-------------- application = tornado.web.Application([ (r"/", MainHandler), ]) if __name__ == "__main__": application.listen(8888) tornado.ioloop.IOLoop.instance().start() 

Answer 2

Falsetru's answer is a useful hint, and yes, you need the get method. But no, I don't think the get and post method should behave the same. The semantics of these two methods are different. Please see the http specifications http://www.w3.org/Protocols/rfc2616/rfc2616-sec9.html and look at Brabster’s answer to this question What is the difference between HTTP-Get and HTTP-POST and why HTTP-POST is weaker from the point security view .

(Sorry, my suggestion should be better than the comment on falsetru's answer, but my reputation does not allow)

Answer 3

The sample code you provided in your question, Work. Just remember to send POST instead of GET using Curl or Postman, for example. If you point the web browser to a URL, it will try to execute a GET that you did not define.

You might not want to define a GET for the URL. It is perfectly legal to have a POST URL, and Tornado certainly allows you to do this. The POST URL can be a common sending point for forms downloaded from many other locations.