[NTG-context] Running mtxrun in a continuous batch mode

[Ramkumar KB]

Hans,

Thank you so much for the kind response.

Apologies that I was not very clear in my initial query. I have -

   1. MyStatement.tex, with all the necessary fonts, static text, images,
   header, footer etc
   2. MyStatement.tex reads from a JSON file for certain sections of the
   document for the dynamic content
   3. context MyStatement.tex produces MyStatement.pdf

How do I do the above steps 1 to 3 in a continuous fashion such that -

   - Output is MyStatement_1.pdf (reads from data_1.json), MyStatement_2.pdf
   (reads from data_2.json) and so on
   - The tex processing is fast as fonts etc are loaded once (as the Tex
   template is same for all the MyStatement_n.pdf)

>From the sample code that you gave, I get a hint that this can be possibly
done using ConTeXt Lua Document approach. Is this correct?

Thank you once again,

Best,
Ramkumar

On Tue, Nov 3, 2020 at 7:02 PM Hans Hagen <j.hagen at xs4all.nl> wrote:

> On 11/3/2020 1:55 AM, Ramkumar KB wrote:
> > Hello,
> >
> > I am trying to run mtxrun in a batch process and read the available
> > documentation here -
> > https://wiki.contextgarden.net/Running_ConTeXt_without_a_shell
> >
> > My usecase is being able to create PDF docs based on the input data that
> > comes in a JSON format (in a continuous batch process). In ConTeXt,
> > thanks to the Lua engine, I am able to inject a JSON read from a file -
> > and use the JSON in the tex file (here variable `tab` holds the JSON).
> >
> > How do I make this as a continuous webservice - in comes JSON and out
> > comes the PDF ?
> >
> > \startluacode
> > require("test-json")
> > \stopluacode
> >
> > The name of the document is \ctxlua{tex.print(tab['documentName'])}
> >
> > Any tips or pointers would be much appreciated.
> foo.cld :
>
> require("util-jsn")
>
> -- local str = io.loaddata("somefile.json")
>
> local str = [[ {
>      "title": "Some JSON",
>      "text" : "Just an example.",
>      "data" : [
>          { "a" : "first 1", "b" : "last 1" },
>          { "b" : "last 2", "a" : "first 2" }
>      ]
> } ]]
>
> local tmp = utilities.json.tolua(str)
>
> context.starttext()
>
>      context.starttitle { title = tmp.title }
>
>          context(tmp.text) context.par()
>
>          context.starttabulate { "|c|c|" }
>              for i=1,#tmp.data do
>                  local d = tmp.data[i]
>                  context.NC()
>                      context(d.a) context.NC()
>                      context(d.b) context.NC()
>                  context.NR()
>              end
>          context.stoptabulate()
>
>      context.stoptitle()
>
> context.stoptext()
>
> and then
>
> context foo.cld
>
>
> -----------------------------------------------------------------
>                                            Hans Hagen | PRAGMA ADE
>                Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
>         tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
> -----------------------------------------------------------------
>
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