json rest problem
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@juntiedt Try it with:
conn.request("POST", "/json/relay/5", payload, headers)
and according to the
File "/usr/lib/python3.5/http/client.py", line 849, in connect (self.host,self.port), self.timeout, self.source_address)
it seems that the client cannot connect to the server (check the IP address and port) and if evok is running (systemctl status evok).
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Hi Tomas,
when I use localhost:8080 I receive the very long error message above. However, when I use localhost:80 and your request I receive the error message below. Does this tell you something?
regards
Hannesimport http.client payload = "{\"value\":\"1\"}" headers = {'content-type':"application/json"} conn = http.client.HTTPConnection("localhost:80") conn.request("POST", "/json/relay/5", payload, headers) response = conn.getresponse() print(response.status, response.reason) data = response.read() print(data) conn.close()
I get this respones:
404 Not Found b'<html><title>404: Not Found</title><body>404: Not Found</body></html>'
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@juntiedt Are you sure that evok is running on localhost on port 8080?
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evoc is running. I checked it with "systemctl status evok"
I checked "/etc/evoc.conf. port" which was set to 80. Actually I haven't changed anything since installation! Changed it now to 8080.
I am getting the same response as before: 404 Not Found ... see above - but now on port 8080Is there another file where I should/could change the port to 8080?
does body mean payload and title mean headers?
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This post is deleted! -
@juntiedt After you changed the port in /etc/evok.conf to 8080, did you restart it? I think it should not work, because there is the some webserver running on 8080. Check it with
netstat -putan
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is it possible that I have a problem with tornadorpc-evok. I am not sure if it is installed the correct way. please let me know how to install it and where I can find the correct installation file.
regarding your question: no web server running
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@juntiedt Some server is running because it responds with 404... The tornado-rpc evok is part of evok itself. Please try to reinstall evok and paste the output of the installation script
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ok, I will reinstall evok.
Wich one would you recommend?
Legacy or Evok 2.0 on my unipi1.1 with stretch -
@juntiedt 2.0
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new stretch image, new evok --> all works perfectly!
thanks Tomas -
Hi Tomas,
I was too optimistic yesterday. Today I tryed your websocket based sample programm with Python 3. Python can't find websocket. Do I have to install a websocket library? If yes which one?There is another problem I found when rebooting after installing evok.
During booting raspbian stretch I got this warning message:
"Failed to start load kernel modules"
Could this be the reason why websocket does not work?I am running plain stretch with latest update and upgrade
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system Status:
● systemd-modules-load.service - Load Kernel Modules Loaded: loaded (/lib/systemd/system/systemd-modules-load.service; static; vendor preset: enabled) Active: failed (Result: exit-code) since Fri 2017-11-17 12:50:58 CET; 2min 17s ago Docs: man:systemd-modules-load.service(8) man:modules-load.d(5) Process: 126 ExecStart=/lib/systemd/systemd-modules-load (code=exited, status=1/FAILURE) Main PID: 126 (code=exited, status=1/FAILURE) Nov 17 12:50:58 raspberrypi systemd-modules-load[126]: Inserted module 'i2c_dev' Nov 17 12:50:58 raspberrypi systemd-modules-load[126]: Inserted module 'i2c_bcm2708' Nov 17 12:50:58 raspberrypi systemd-modules-load[126]: Error running install command for unipi_eprom Nov 17 12:50:58 raspberrypi systemd-modules-load[126]: Failed to insert 'unipi_eprom': No such file or directory Nov 17 12:50:58 raspberrypi systemd-modules-load[126]: /etc/opt/unipi_eprom: 24: /etc/opt/unipi_eprom: cannot create /sys/class/i2c-dev/i2c-1/device/new_device: Directory none Nov 17 12:50:58 raspberrypi systemd-modules-load[126]: sh: 1: cannot create /sys/bus/i2c/devices/i2c-1/new_device: Directory nonexistent Nov 17 12:50:58 raspberrypi systemd[1]: systemd-modules-load.service: Main process exited, code=exited, status=1/FAILURE Nov 17 12:50:58 raspberrypi systemd[1]: Failed to start Load Kernel Modules. Nov 17 12:50:58 raspberrypi systemd[1]: systemd-modules-load.service: Unit entered failed state. Nov 17 12:50:58 raspberrypi systemd[1]: systemd-modules-load.service: Failed with result 'exit-code'. ~
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sorry for the websocket issue. Its now running.
the only thing left is the unipi_eprom problem in the boot process of Raspbian