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    Import javascript library

    Scripting general Discussion
    scipting javascript
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    • phildunlapP
      phildunlap
      last edited by phildunlap

      What you're talking about is possible, but not especially clean (having something like node.js makes plenty of sense, opening a browser doesn't).

      If you had a webpage open, and it had loaded coolprop and somehow no memory issues occurred in that version despite being the same device opening the webpage (edit: or you're using some other JavaScript engine, or node.js, etc), you could write that webpage to subscribe to a point value web socket (or just poll a data point if you prefer) and then return the computed points as a PUT to /rest/v1/point-values (you can explore the endpoints in swagger, but I suspect you'd want the multiple update endpoint). So, both the retrieval and the return of values should be taken care of in that webpage through the API.

      Other alternatives are figuring out how to prevent it from allocating such a chunk of memory when loaded (but alas I couldn't find a non-minified version of the script), or using another of their libraries and seeing if that works, For instance, you could use the python library on the server, then use the SSH data source when you need to invoke the library.

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      • A
        arvand.owji @phildunlap
        last edited by

        @phildunlap said in Import javascript library:

        point value web socket

        Do you have an example of a webpage that interacts with Mango point value using a web socket? Thanks.

        Jared WiltshireJ 1 Reply Last reply Reply Quote 0
        • Jared WiltshireJ
          Jared Wiltshire @arvand.owji
          last edited by

          @arvand.owji
          Lots of the Mango UI pages do this. e.g. Data Point Details or Watch List

          Developer at Radix IoT

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          • A
            arvand.owji
            last edited by

            So i created an internal data source and also added a data point for that data source. Now when i try to edit that data point using MangoAPI.defaultApi.putValue(xid, pvt) (**running on a seperate webpage but on the same server)i get an error that the data point is not settable. inside the DP, all i see for "set permission" is blank, Admin and super admin. How can i set me DP permission to be able to set it from outside? Am i even right to use an internal data source for this purpose? All i need is an arbitrary datapoint that i can be able to set it from outside. Maybe i have to use http data source instead?

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            • phildunlapP
              phildunlap
              last edited by

              Hi Arvand,

              You would rather use a virtual data source for that purpose. The internal data source is for gathering information on how Mango or the system are running.

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              • A
                arvand.owji @phildunlap
                last edited by

                @phildunlap said in Import javascript library:

                Hi Arvand,

                You would rather use a virtual data source for that purpose. The internal data source is for gathering information on how Mango or the system are running.

                Thanks and it worked. I can now Get data and then set them in my webpage.
                Im encountering a new problem now. I created a http data retriever and passed my webpage address as the data source url . I set the update time to 5 minutes and when I save/enable the data source i get the following error:
                INFO 2017-07-17 14:41:34,313 (com.serotonin.m2m2.rt.RuntimeManager.stopDataSource:383) - Data source 'CoolPropRet' stopped
                INFO 2017-07-17 14:45:03,419 (com.serotonin.m2m2.rt.RuntimeManager.initializeDataSourceStartup:351) - Data source 'CoolPropRet' initialized
                INFO 2017-07-17 14:45:03,423 (com.serotonin.m2m2.rt.RuntimeManager.initializeDataSourceStartup:356) - Data source 'CoolPropRet' took 33.553523ms to start
                ERROR 2017-07-17 14:45:03,424 (com.serotonin.m2m2.web.dwr.util.ExceptionDetectionFilter.doFilter:38) - DWR invocation exception
                java.lang.IllegalStateException: Timer already cancelled.

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                • A
                  arvand.owji @arvand.owji
                  last edited by

                  Hi All,
                  Any chance we know why i'm getting the above error? Thanks.

                  1 Reply Last reply Reply Quote 0
                  • phildunlapP
                    phildunlap
                    last edited by

                    Hi Arvand,

                    Off hand I'm not quite sure. Can you possibly share the JSON for the HTTP Retriever data source that you are experiencing this with? Export it from the row in the table of data sources on /data_sources.shtm so that it also exports its points.

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                    • A
                      arvand.owji @phildunlap
                      last edited by

                      @phildunlap said in Import javascript library:

                      Hi Arvand,

                      Off hand I'm not quite sure. Can you possibly share the JSON for the HTTP Retriever data source that you are experiencing this with? Export it from the row in the table of data sources on /data_sources.shtm so that it also exports its points.

                      Maybe im not using the right tool. I wrote a webpage that uses mango api to retrieve bunch of DPs and and then set some DPs. What i'm trying to do is to use the HTTP retriever to act like a cron job and simply send a request to that url every X minutes. I dont really care whats being oasses ot that url or what that url returns. Here is the datasrouce export. I removed the website name from the url but i have validated that the mango box has access to the url (i can ping the host from command prompt.

                      {
                      "dataSources":[
                      {
                      "xid":"DS_608664",
                      "name":"CoolPropRet",
                      "enabled":true,
                      "type":"HTTP_RETRIEVER",
                      "alarmLevels":{
                      "DATA_RETRIEVAL_FAILURE":"URGENT",
                      "POLL_ABORTED":"URGENT",
                      "SET_POINT_FAILURE":"URGENT",
                      "PARSE_EXCEPTION":"URGENT"
                      },
                      "purgeType":"YEARS",
                      "updatePeriodType":"MINUTES",
                      "quantize":false,
                      "retries":2,
                      "setPointUrl":"",
                      "timeoutSeconds":30,
                      "updatePeriods":2,
                      "url":"http://www.MYWEBSITE.COM:85/coolprop4.html",
                      "editPermission":"",
                      "purgeOverride":false,
                      "purgePeriod":1
                      }
                      ],
                      "dataPoints":[
                      ]
                      }

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                      • A
                        arvand.owji @arvand.owji
                        last edited by

                        I also just tried http://192.168.1.125/coolprop4.html as the url and i got the same error.

                        1 Reply Last reply Reply Quote 0
                        • phildunlapP
                          phildunlap
                          last edited by

                          Hmm. Can you try clearing your browser cache (ctrl + shift + delete in Chrome) and deleting your Mango/work/jsp directory, then trying again?

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                            arvand.owji @phildunlap
                            last edited by

                            @phildunlap said in Import javascript library:

                            Hmm. Can you try clearing your browser cache (ctrl + shift + delete in Chrome) and deleting your Mango/work/jsp directory, then trying again?

                            ia have bunch of stuff in /opt/mango/work/jsp. is it ok to delete them?

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                            • phildunlapP
                              phildunlap
                              last edited by

                              Yeah those are compiled JSPs. It will recompile them when the pages are loaded if you delete that.

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                                arvand.owji @phildunlap
                                last edited by

                                @phildunlap my permission doesnt let me to delete them. I dont have the SU password. I tried to go another route and see if ican just invoke this from linux command prompt. "curl -ls http://xxxxxxxx". It didnt work and prompt me to try the url in another browser and there i realzied that im getting error "MANGO XHR access failed". It seems im not login and doesnt let me to make any changes (which is a good thing). How can i easily login without going through the REST API. is there anyway to login from MangoAPI jquery?

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                                • phildunlapP
                                  phildunlap
                                  last edited by phildunlap

                                  I think you're looking for this page: https://help.infiniteautomation.com/mango-rest-api-authentication/

                                  If this is an ES you can sudo using the regular user's password to sudo su, you don't need to su root.

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                                  • A
                                    arvand.owji @phildunlap
                                    last edited by

                                    @phildunlap Thanks. Assuming we get the http get working, do we still need to implement the login or because mango is doignthe request, the authentication is not needed

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                                    • A
                                      arvand.owji
                                      last edited by

                                      btw, i delete the folder and i still get the same error. Thanks

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                                      • A
                                        arvand.owji @phildunlap
                                        last edited by

                                        @phildunlap

                                        @phildunlap said in Import javascript library:

                                        I think you're looking for this page: https://help.infiniteautomation.com/mango-rest-api-authentication/

                                        If this is an ES you can sudo using the regular user's password to sudo su, you don't need to su root.

                                        What will be the request url? I tried to replace the localhost:8080 with my mango box url and im getting page not found error inside mango website when i try it in the browser
                                        http://xxxxxx.com/rest/v2/login

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                                        • phildunlapP
                                          phildunlap
                                          last edited by

                                          It should be a POST to /rest/v2/login

                                          What version of Mango and the API do you have installed?

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                                          • A
                                            arvand.owji @phildunlap
                                            last edited by

                                            @phildunlap said in Import javascript library:

                                            It should be a POST to /rest/v2/login

                                            What version of Mango and the API do you have installed?

                                            mangoES3273

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