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    rest request result not json conform

    Official EVOK API
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    • T
      tomas_hora administrators last edited by

      The function called full is for every device - Input, AnalogInput, Relay,.. so you have to change it for each device.

      For me this worked well for digital input

          def full(self):
              return {'dev': 'input', 'circuit': self.circuit, 'value': self.value,
                      'time': str(self.tick), 'debounce': self.debounce,
                      'counter_mode': self.counter_mode == 'rising' or self.counter_mode == 'falling'}
      
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      • J
        juntiedt last edited by tomas_hora

        Hi Tomas,

        did not work :-(
        I have put a debug print into def full(self). It was not printed -> the routine was not executed

        fyi my testprogramm :100:

        #!/usr/bin/python
        
        import urllib.request
        import subprocess
        import time
        
        #----------------------------------------------------------
        
        def restart_evok():
            subprocess.call(['sudo', 'service', 'evok', 'stop'])
            time.sleep(1)
            print("EVOK stoped")
            subprocess.call(['sudo', 'service', 'evok', 'start'])
            time.sleep(1)
            print("EVOK started" + "\n")
            
        #----------------------------------------------------------
        
        restart_evok()
        
        Relay = 1
        url='http://10.0.0.50/rest/relay/'+str(Relay)
        print ('URL   = ' + url)
        unipi = urllib.request.urlopen(url).read()
        print ('R1    = ' + str(unipi) + "\n")
        
        Temp1 = "28B01DC107000045"
        url='http://10.0.0.50/rest/sensor/' + Temp1
        print ('URL   = ' + url)
        unipi = urllib.request.urlopen(url).read()
        print ('Temp1 = ' + str(unipi) + "\n")
        

        it looks like websocket is handled elsewhere in evok.
        any idea?

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        • T
          tomas_hora administrators last edited by

          @juntiedt Are you sure you are editing the full method in right places? I just tried it for DS18B20 sensor and works well:

          class DS18B20(MySensor):  # thermometer
          
              def full(self):
                  return {'dev': 'temp', 'circuit': self.circuit, 'address': self.address,
                          'value': self.value, 'lost': self.lost, 'time': str(self.time), 'interval': self.interval, 'typ': self.type}
          

          And the output was as expected:

          >>> print urllib.urlopen("http://192.168.1.107/rest/sensor/28A83B60070000FD").read()
          {"interval": 15, "value": 22.4, "circuit": "28A83B60070000FD", "address": "28A83B60070000FD", "time": "1480336515.68", "typ": "DS18B20", "lost": false, "dev": "temp"}
          
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          • J
            juntiedt last edited by

            sorry, but is this the right place to edit on my Raspi?
            /home/pi/evok/evok/owclient.py

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            • T
              tomas_hora administrators last edited by

              That is only a temporary folder where the source was downloaded. The application is located in /opt/evok/

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              • J
                juntiedt last edited by

                Hallo Tomas,

                Problem solved!
                Thanks for your support.

                Hannes

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                • J
                  juntiedt last edited by

                  Hallo Tomas,

                  the problem above is solved but now the unipi control panel does not work correctly with the above suggested changes.
                  The web application needs also to be changed to work with strings. But where to change?

                  Hannes

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                  • T
                    tomas_hora administrators last edited by

                    @juntiedt The place to look at is here: https://github.com/UniPiTechnology/evok/blob/master/www/evok/js/wsbase.js#L11-L45

                    Located in /var/www/evok/

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                    • J
                      juntiedt last edited by

                      I am not familiar with java script.
                      Due to my changes in the python code msg.circuit and msg.value should be in string format which I have to reformat in java script to int or float .....?
                      Please have a look at my code below.
                      control panel only shows relay 1 and input 1

                       function SyncDevice(msg) {
                      //todo: add name as parameter
                      var name = "";
                      var circuit = parseInt(msg.circuit);     <-----
                      var dev_type = msg.dev;
                      var value = parseInt(msg.value);    <------
                      var unit = "";
                      var ns = "unipi_" + dev_type + "_" + circuit;
                      
                      if (dev_type == 'ai') {
                          name = "Analog input " + circuit;
                          value = value.toFixed(3);     <------
                          unit = "V";
                      }
                      else if (dev_type == 'ao') {
                          name = "Analog output " + circuit;
                          unit = "V";
                          value = value.toFixed(1);     <------
                      }
                      else if (dev_type == 'relay') {
                          name = "Relay " + circuit;
                      }
                      else if (dev_type == 'input') {
                          name = "Input " + circuit;
                      }
                      else if (dev_type == 'temp') {
                          name = "Sensor " + msg.typ + " - " + circuit;
                          if value == null) {
                              value = "null";
                          }
                          else {
                              value = value.toFixed(1);
                              unit = "°C";
                          }
                      }
                      
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                      • T
                        tomas_hora administrators last edited by tomas_hora

                        You should parse the string according to the expected data type. Eg. if you make integer from float right at the beginning you wont be able to get a float from that later on. So it should be something like this:

                        function SyncDevice(msg) {
                        //todo: add name as parameter
                        var name = "";
                        var circuit = parseInt(msg.circuit);
                        var dev_type = msg.dev;
                        var value = msg.value;       <------
                        var unit = "";
                        var ns = "unipi_" + dev_type + "_" + circuit;
                        
                        if (dev_type == 'ai') {
                            name = "Analog input " + circuit;
                            value = parseFloat(value).toFixed(3);     <------
                            unit = "V";
                        }
                        else if (dev_type == 'ao') {
                            name = "Analog output " + circuit;
                            unit = "V";
                            value = parseFloat(value).toFixed(1);     <------
                        }
                        else if (dev_type == 'relay') {
                            name = "Relay " + circuit;
                            value = parseInt(value);    <------
                        }
                        else if (dev_type == 'input') {
                            name = "Input " + circuit;
                            value = parseInt(value);    <------
                        }
                        else if (dev_type == 'temp') {
                            name = "Sensor " + msg.typ + " - " + circuit;
                            if (value == null || value == "") {
                                value = "null";
                            }
                            else {
                                value = parseFloat(value).toFixed(1);     <------
                                unit = "°C";
                            }
                        }
                        
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                        • J
                          juntiedt last edited by

                          super!
                          everything is ok now
                          great support
                          thank you

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                          • J
                            juntiedt last edited by tomas_hora

                            Hi Tomas,

                            I still have a little problem with the control panel.
                            After my changes in wsbase.js my 1-wire sensor circuits are cut off at the first letter. See picture:

                            0_1481284880886_upload-2ede6770-4a69-4a1e-a7d8-7aff93d1e313

                            I changed my code in wsbase as follows:

                            function SyncDevice(msg) {
                            	//todo: add name as parameter
                            	var name = "";
                            	var circuit_a = msg.circuit;                            <------------------------
                            	var circuit = parseInt(msg.circuit);
                            	var dev_type = msg.dev;
                            	var value = msg.value;       
                            	var unit = "";
                            	var ns = "unipi_" + dev_type + "_" + circuit;
                            	if (dev_type == 'ai') {
                            		name = "Analog input " + circuit;
                            		value = parseFloat(value).toFixed(3);
                            		unit = "V";
                            	}
                            	else if (dev_type == 'ao') {
                            		name = "Analog output " + circuit;
                            		unit = "V";
                            		value = parseFloat(value).toFixed(1);
                            	}
                            	else if (dev_type == 'relay') {
                            		name = "Relay " + circuit;
                            		value = parseInt(value);
                            	}
                            	else if (dev_type == 'input') {
                            		name = "Input " + circuit;
                            		value = parseInt(value);
                            	}
                            	else if (dev_type == 'temp') {
                            		name = "Sensor " + msg.typ + " - " + circuit_a;     <------------------------
                            		if (value == null || value == ""){
                            			value = "null";
                                	}
                                     else {
                                    	value = parseFloat(value).toFixed(1);
                                    	unit = "°C";
                            		}
                            	}
                            

                            unfortunately no success.
                            What have I done wrong?

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                            • J
                              juntiedt last edited by

                              hi Tomas,

                              sorry for my recent post!
                              I have solved the problem!
                              I had to delete the cache of my chrom browser and now it works!

                              have a nice Weekend

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