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    How to use HTTP JSON Receiever to receive the data with is by JSON format

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    • phildunlapP
      phildunlap
      last edited by

      It is the blue help question mark (?) on the data point's edit page, at the top of the data point edit section.

      I would normally post JSON for a data source, but I am traveling at the moment, so I'll have to add that in later. It should be pretty easy though. For the sample message in my last post, the data type is Binary and the Parameter Name is test

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      • W
        Wilson @phildunlap
        last edited by joeamiraglia

        @phildunlap

        Hi Phil,

        Thank you but I tried per your advice, result is not optimistic. Please assist.
        Firstly, I created mango http receiver with data point, with most input as "key"
        0_1486093270932_1.jpg
        Secondly, I tried to run two http post as below,
        first one, I put content type as application/json,
        0_1486093377336_2.jpg
        Second one, I put content type as what you recommend above, result get is unconsumed key
        0_1486093603658_3.jpg
        For these two tests, I can not get the data from data view as below.
        0_1486093872378_4.png

        Thanks,
        Wilson

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        • W
          Wilson
          last edited by

          Would you please help explain more about below, Thank you.

          #!/bin/bash
          #Send previous POST to the server!
          nc serverIp serverPort < postMessage.txt

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          • phildunlapP
            phildunlap
            last edited by phildunlap

            Hi Wilson,

            The nc command is just to send those characters to the server at its HTTP port. HTTP is message structuring built on TCP, so for simple messages it is easy enough to use nc (the "TCP/IP Swiss Army Knife") for immediate testing results where absolutely no other factors are in the problem.

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            • phildunlapP
              phildunlap
              last edited by

              There is undoubtably room to improve the HTTP JSON receiver. As I said, it was bolted onto the HTTP receiver because a client was faced with a situation where use of regex to identify points and values would have been impossible. I could conceive value in consuming the post body as one large JSON object (as the receiver outputs for type JSON) as well as having a more sensible relationship to the content-type. The demand simply hasn't existed before.

              Hui Ka KamH 1 Reply Last reply Reply Quote 0
              • Hui Ka KamH
                Hui Ka Kam @phildunlap
                last edited by

                @phildunlap I just wanting your sample file, When will you finish your traveling ?

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                • phildunlapP
                  phildunlap
                  last edited by

                  What sample file? The contents of "postMessage.txt" was the text in the higher part of the post.

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                  • Hui Ka KamH
                    Hui Ka Kam
                    last edited by

                    After running the script "
                    nc localhost 8080 < postMessage.txt" , it have the error, attach the error.txt for reference : 0_1486449341741_error.txt

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                    • phildunlapP
                      phildunlap
                      last edited by phildunlap

                      Hi Kam,

                      Thanks for bringing that to our attention. i bet the point you are using doesn't have a data type of Binary. But, that shouldn't throw an NPE regardless. Your line numbers imply you're using Mango 2.5 ? It shouldn't matter for this data source, since it hasn't really changed in years.

                      I have run my test, again, and am still able to make it work. I have a binary data point with the parameterKey 'test' and I am passing in the following messages:

                      setFalse.txt:

                      POST /httpds HTTP/1.1
                      Accept: */*
                      Content-Type: application/x-www-form-urlencoded
                      Host: 127.0.0.1
                      Connection: Keep-Alive
                      Content-Length: 19
                      
                      json={"test":false}
                      

                      setTrue.txt:

                      GET /httpds?json={"test":true} HTTP/1.1
                      Accept: */*
                      Content-Type: application/json
                      Host: 127.0.0.1
                      Connection: Keep-Alive
                      

                      I am doing:

                      nc 127.0.0.1 80 < setFalse.txt
                      nc 127.0.0.1 80 < setTrue.txt
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                      • D
                        doriaguiar
                        last edited by

                        try to change localhost to 127.0.0.1

                        I did that and it worked.

                        If you want localhost to work you need to change your hosts file like the picture below.

                        I hope it helps.

                        0_1573330326967_77c22e1f-0df4-485e-a6cc-7e244cffd3be-image.png

                        0_1573330381922_8a54d321-e0ab-4e5d-b192-df7b816dbb23-image.png

                        0_1573330729102_05c34180-4394-4716-9420-67b44be50df1-image.png

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