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    json rest problem

    Official EVOK API
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    • T
      tomas_hora administrators last edited by

      @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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      • J
        juntiedt last edited by

        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
        Hannes

        import 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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        • T
          tomas_hora administrators @juntiedt last edited by

          @juntiedt Are you sure that evok is running on localhost on port 8080?

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          • J
            juntiedt last edited by

            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 8080

            Is there another file where I should/could change the port to 8080?

            does body mean payload and title mean headers?

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            • T
              TomasKnot @juntiedt last edited by

              This post is deleted!
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              • T
                tomas_hora administrators @juntiedt last edited by

                @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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                • J
                  juntiedt last edited by

                  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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                  • T
                    tomas_hora administrators @juntiedt last edited by

                    @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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                    • J
                      juntiedt last edited by

                      ok, I will reinstall evok.
                      Wich one would you recommend?
                      Legacy or Evok 2.0 on my unipi1.1 with stretch

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                      • T
                        tomas_hora administrators @juntiedt last edited by

                        @juntiedt 2.0

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                        • J
                          juntiedt last edited by

                          new stretch image, new evok --> all works perfectly!
                          thanks Tomas

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                          • J
                            juntiedt last edited by

                            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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                            • J
                              juntiedt last edited by

                              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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                              • J
                                juntiedt last edited by

                                sorry for the websocket issue. Its now running.

                                the only thing left is the unipi_eprom problem in the boot process of Raspbian

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