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twisted.web.error.UnsupportedMethod: Expected one of [b'HEAD', b'object', b'POST']

See original GitHub issue

2018-05-31T20:26:16+0800 [_GenericHTTPChannelProtocol,3,10.43.234.66] Unhandled Error
        Traceback (most recent call last):
          File "/root/.pyenv/versions/3.6.5/lib/python3.6/site-packages/twisted/web/http.py", line 2145, in allContentReceived
            req.requestReceived(command, path, version)
          File "/root/.pyenv/versions/3.6.5/lib/python3.6/site-packages/twisted/web/http.py", line 890, in requestReceived
            self.process()
          File "/root/.pyenv/versions/3.6.5/lib/python3.6/site-packages/twisted/web/server.py", line 197, in process
            self.render(resrc)
          File "/root/.pyenv/versions/3.6.5/lib/python3.6/site-packages/twisted/web/server.py", line 257, in render
            body = resrc.render(self)
        --- <exception caught here> ---
          File "/root/.pyenv/versions/3.6.5/lib/python3.6/site-packages/scrapyd/webservice.py", line 21, in render
            return JsonResource.render(self, txrequest).encode('utf-8')
          File "/root/.pyenv/versions/3.6.5/lib/python3.6/site-packages/scrapyd/utils.py", line 20, in render
            r = resource.Resource.render(self, txrequest)
          File "/root/.pyenv/versions/3.6.5/lib/python3.6/site-packages/twisted/web/resource.py", line 249, in render
            raise UnsupportedMethod(allowedMethods)
        twisted.web.error.UnsupportedMethod: Expected one of [b'HEAD', b'object', b'POST']

Issue Analytics

State:
Created 5 years ago
Comments:7 (2 by maintainers)

Top GitHub Comments

1reaction

azmirfakkricommented, Oct 17, 2019

My scrapyd log:

reclusa_1       | 2019-10-17T13:19:41+0000 [-] Scrapyd web console available at http://0.0.0.0:6800/
reclusa_1       | 2019-10-17T13:19:41+0000 [-] Loaded.
reclusa_1       | 2019-10-17T13:19:41+0000 [twisted.scripts._twistd_unix.UnixAppLogger#info] twistd 19.7.0 (/usr/local/bin/python 3.6.9) starting up.
reclusa_1       | 2019-10-17T13:19:41+0000 [twisted.scripts._twistd_unix.UnixAppLogger#info] reactor class: twisted.internet.epollreactor.EPollReactor.
reclusa_1       | 2019-10-17T13:19:41+0000 [-] Site starting on 6800
reclusa_1       | 2019-10-17T13:19:41+0000 [twisted.web.server.Site#info] Starting factory <twisted.web.server.Site object at 0x7f2d71557048>
reclusa_1       | 2019-10-17T13:19:41+0000 [Launcher] Scrapyd 1.2.1 started: max_proc=16, runner='scrapyd.runner'
reclusa_1       | 2019-10-17T13:20:53+0000 [twisted.python.log#info] "192.168.48.1" - - [17/Oct/2019:13:20:52 +0000] "POST /schedule.json HTTP/1.1" 200 2049 "-" "python-requests/2.22.0"
reclusa_1       | 2019-10-17T13:30:29+0000 [twisted.python.log#info] "192.168.48.1" - - [17/Oct/2019:13:30:29 +0000] "GET / HTTP/1.1" 200 743 "-" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/77.0.3865.120 Safari/537.36"
reclusa_1       | 2019-10-17T13:30:30+0000 [twisted.python.log#info] "192.168.48.1" - - [17/Oct/2019:13:30:30 +0000] "GET /favicon.ico HTTP/1.1" 404 153 "http://localhost:6800/" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/77.0.3865.120 Safari/537.36"
reclusa_1       | 2019-10-17T13:30:33+0000 [twisted.python.log#info] "192.168.48.1" - - [17/Oct/2019:13:30:33 +0000] "GET /jobs HTTP/1.1" 200 471 "http://localhost:6800/" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/77.0.3865.120 Safari/537.36"
reclusa_1       | 2019-10-17T13:30:38+0000 [twisted.python.log#info] "192.168.48.1" - - [17/Oct/2019:13:30:38 +0000] "GET /schedule.json HTTP/1.1" 200 544 "-" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/77.0.3865.120 Safari/537.36"
reclusa_1       | 2019-10-17T13:31:29+0000 [twisted.web.http.HTTPChannel#info] Timing out client: IPv4Address(type='TCP', host='192.168.48.1', port=36206)
reclusa_1       | 2019-10-17T13:31:38+0000 [twisted.web.http.HTTPChannel#info] Timing out client: IPv4Address(type='TCP', host='192.168.48.1', port=36208)
reclusa_1       | 2019-10-17T13:35:57+0000 [twisted.python.log#info] "192.168.48.1" - - [17/Oct/2019:13:35:57 +0000] "GET / HTTP/1.1" 200 743 "-" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/77.0.3865.120 Safari/537.36"

It looks like it did make a POST request for the first time and after that a GET request which is not supported and throwing an error.

0reactions

jpmckinneycommented, Sep 23, 2021

The error seems to only occur when GETing a POST-only endpoint via a browser, which is the expected behavior.

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