Re: receiving POST encoded in JSON

[Henrik Rützou <hr@xxxxxxxxxxxx>]

Scott

I'm trying to compile this simple program but is says the yajl_tree_free()
is undefined, is the something I have missed?

H DFTACTGRP(*NO) ACTGRP('KLEMENT') OPTION(*SRCSTMT)
H BNDDIR('YAJL') DECEDIT('0.')

 /include yajl_h

d docNode         s                   like(yajl_val)
d errmsg          s            500a   varying inz('')

 /free
  docNode = yajl_stmf_load_tree( '/sample.json':errmsg);
  yajl_tree_free(docNode);
  *inlr = *on;
 /end-free

On Mon, Jun 1, 2015 at 10:48 PM, Kevin Turner <
kevin.turner@xxxxxxxxxxxxxxxxxxxx> wrote:

> Not as stunned as me - because I am using it in production, and now face a
> rather onerous re-engineering process :(
> Serves me right for not doing more thorough research into the options.  On
> the flip side, it does help me explain some trouble performance bottlenecks.
>
> As it happens, I do have a "use case" where I need to walk through a JSON
> with no prior knowledge of its exact content. It involves simply comparing
> the JSON (a data model for a context) with the previous version (stored in
> a session) to work out what the delta is.  I basically need to know that a
> node is new, missing or changed to build the delta with no assumed
> knowledge of what the nodes are.  I expect the yajl_xxxx_parse will enable
> me to do this.
>
>
> -----Original Message-----
> From: WEB400 [mailto:web400-bounces@xxxxxxxxxxxx] On Behalf Of Nathan
> Andelin
> Sent: 01 June 2015 21:39
> To: Web Enabling the IBM i (AS/400 and iSeries)
> Subject: Re: [WEB400] receiving POST encoded in JSON
>
> Scott,
>
> Thanks for the additional information. I was so stunned by Kevin's report
> of performance differences between your service program and that of Mihael
> Schmidt; I was looking for an explanation. Unfortunately, I'm not well
> versed in either; I haven't had a requirement to "consume" JSON under IBM i
> yet. I'm interested in the topic, however.
>
> I agree that "applications" typically know the format of JSON documents in
> advance. An API that makes it easy to "find" the content you're looking for
> is intuitive in that case.
>
> I've been toying with writing a JavaScript utility that "merges" HTML
> templates with JSON objects, where neither the format of the HTML nor the
> JSON would be known in advance. I suppose that may have triggered the idea
> of a similar use case under IBM i, though that is just an abstract notion
> at this point.
>
> I view the topic of JSON to be relevant to the topic of single-page
> applications, client-side frameworkd, and possibly server-side web-service
> frameworks, which we have been discussing during the past few weeks.
> --
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