Create a JSON variable in an NSIS script

Archive: Create a JSON variable in an NSIS script

Re DeL SiLeNziO
8th November 2013 10:42 UTC

Create a JSON variable in an NSIS script
Hi all,
I'm a new user of this forum and I'm a newbie of NSIS installer and JSON.
Unfortunately, I've to make an NSIS script that, taking values from a form in the installer, will create a JSON, in order to make an http request.

The question is, it is possible to create a json variable in nsis? All threads I've seen, talking about a json file for input, but in this case, I should have a json variable for output.
It is possible? I took a look to nsJSON plugin, but I don't know if it is the right plugin..

Thanks!
Re DeL SiLeNziO

jpderuiter
8th November 2013 10:54 UTC

http://forums.winamp.com/showthread.php?t=345802

Re DeL SiLeNziO
8th November 2013 13:49 UTC

mmm ok, I've already read this thread but I need some explaination...

the example of thread says:

nsJSON::Set `more_stuff` `PSCHED_009_NAME` /value `QoS Packet Scheduler`

in this case, where is the variable containing my data?
How can I do an http call?

Re DeL SiLeNziO
8th November 2013 16:59 UTC

I tried to use nsJSON but, when compile I obtain:

Invalid command: nsJSON::Set

this is my code:

...
!include MUI2.nsh
....
Page custom nsDialogsPage
...
Function nsDialogsPage
SetOutPath "$INSTDIR\bin"
File "..\bin\nsJSON.dll"

nsDialogs::Create 1018
Pop $Dialog
${If} $Dialog == error
Abort
${EndIf}

${NSD_CreateLabel} 0 0 100% 12u "Registering a new AIC"
Pop $Title

${NSD_CreateLabel} 0 20 20 12u "AIC:"
Pop $LabelAIC
${NSD_CreateText} 40 20 80 12u ""
Pop $TextAIC

${NSD_GetText} $TextAIC $prova

nsJSON::Set /value `{}`
nsJSON::Set `aic` /value `"$prova"`
nsJSON::Serialize /format /file c:\Temp\test.json
DetailPrint `Generate: c:\Temp\test.json`

nsDialogs::Show
FunctionEnd

Should I include anything else?!

Anders
8th November 2013 22:04 UTC

Invalid command probably means it cannot find the plugin, use !addplugindir...

Re DeL SiLeNziO
11th November 2013 11:16 UTC

Originally posted by Anders
Invalid command probably means it cannot find the plugin, use !addplugindir...

Ok!! Thanks! With addplugindir works!
In order to take the value of my ${NSD_CreateText} I used NSD_GetText:
Quote:

Re DeL SiLeNziO
13th November 2013 13:22 UTC

Ok, solved! My mistake... :(

...
Var a
...
${NSD_CreateText} 40 20 80 12u ""
Pop $txt

${NSD_GetText} $txt $a

nsJSON::Set /value `{}`
nsJSON::Set `VARTEXT` /value `"$a"`
nsJSON::Serialize /format /file c:\Temp\test.json
DetailPrint `Generate: c:\Temp\test.json` but, even if I write some text in the field my var $a is empty and my json result is:

{
"VARTEXT": ""
}

Where is the error?! :( :cry:

thanks so much!!!!