Re: RPG & webservice

[Raul Jager <raul@xxxxxxxxxx>]

First step is to configure the Apache so it will run CGI programs.

Next, since you are not reading anything from the "caller", you can just
create a varying field with your output and send it to QtmhWrStout

A sample:

 **  Llamar como: StdOut(texto: longTexto: qusec)           
D    StdOut       PR                  ExtProc('QtmhWrStout')
D  OutBuffer                  2048A   const                 
D  OutBufferLen                 10I 0 const                 
D  ErrorBuffer                  16                          
                                                            
D QUSEC           DS                                        
D  QUSBPRV                      10I 0 Inz(%size(QUSEC))     
D  QUSBAVL                      10I 0                       
D  QUSEI                         7                          
D  QUSERVED                      1                          


On 08/27/2018 04:35 PM, Booth Martin wrote:
> You are correct, Scott.  I am confused. And still am confused.
>
> My goal is to provide a very simple web service.  The example I am
> learning with is a DB2 file of 10 to 20 records, each with a state and
> a city field.  A green screen program maintains the file.  The
> additional, new piece that I am trying to make work is an Intranet web
> service that offers that data, in a JSON format, to anyone who asks
> for it.
>
> My presumption was that there would be an SQLRPGLE program, that when
> asked, would read the DB2 file and provide a .json data stream that a
> javascript file could GET and process as the web folks chose, for
> their needs.
>
> This DB2-to-web page task already works if I write a .json file to the
> IFS and deal with it as an IFS HTTP website.  So, I know the general
> process works.  The hang-up for me is the web service piece.
>
> I shall read the slide show presentation one more time.
>
> Your initial premise really is correct; I am confused.  By the way, in
> case I forget, I really appreciate all the stuff you have offered and
> all that I have learned from you.  Thank you Scott.
>
>
> On 8/26/2018 11:03 PM, Scott Klement wrote:
> > Booth,
> >
> > It sounds to me as if you are confusing two different things.
> >
> > IWS (which uses QWSERVICE as a default userid, and runs under Java,
> > explaining the reason you're getting these Java errors) does not
> > require you to write data to STDOUT.
> >
> > IWS does all of the XML/JSON work for you, and passes you
> > input/output as parameters.
> >
> > If you want to read/write your documents yourself using stdin/stdout,
> > do not use IWS, but instead using a normal Apache server.  (i.e. an
> > HTTP server, NOT a web services server.)
> >
> > My documents have examples of both ways, and it sounds like you are
> > confusing the two. 


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