Re: receiving POST encoded in JSON

Well, a staggering difference - using a 140kb JSON as a benchmark

JSON parse=16107ms
YAJL parse=53ms


-----Original Message-----
From: WEB400 [mailto:web400-bounces@xxxxxxxxxxxx] On Behalf Of Kevin Turner
Sent: 30 May 2015 08:52
To: Web Enabling the IBM i (AS/400 and iSeries)
Subject: Re: [WEB400] receiving POST encoded in JSON

I think I'm going to have to compare take a closer look at YAJL to properly compare it to JSON from rpgnextgen.com. The latter is attractive because it is written entirely in RPG and the procedure names seem a bit more intuitive (e.g. json_parse() compared to yajl_tree_load_buf() ) - however as YAJL is, I believe, written in C it might bring some performance benefits.

On 30 May 2015, at 04:08, Scott Klement <web400@xxxxxxxxxxxxxxxx> wrote:

Raul,

I don't understand your complaint about calling QtmhRdStin? it's an extremely simple call, and then your JSON data is loaded into a variable in your program, and you can parse it. What could be simpler?

If you're interested in YAJL, you can use the yajl_tree_load_buf() procedure to load the buffer you got from QtmhRdStin() to parse the JSON, and then you'll have a yajl tree that you can extract the data from. There's info on parsing XML with yajl in the following handout (this is from talks I give on yajl):

http://www.scottklement.com/presentations/Working%20with%20JSON%20in%2
0RPG.pdf

I've been considering adding a wrapper to my YAJL tools that does the call to QtmhRdStin() for you so you don't have to code it by hand -- this wouldn't save you all that much, really, just eliminates the need to code it each time. Would that be more attractive to you? (That's basically what CGIDEV2 does, after all.)

On 5/29/2015 5:00 PM, Raul A Jager W wrote:
We are planing to wor with a company that will send us data as POST
in json format.
CGIDEV seems to ignore this data. With another company I used
QtmhRdStin, but I wonder if there is an easier way to read it.

I installed YAJL from Scot's site, but it seems that is great to
create json and to parse it, but I did not find how to receive it.

According to this: http://www.w3.org/TR/html-json-forms/ browsers
will be able to send json encode data.

Here is part of the document they send me.

Recurso: Pago (POST / JSON)
Pedido

Nombre Campo Tipo Longitud Descripción codServicio String 5 tipoTrx
Num 2 03 = Pago usuario String 20 password String 20 nroFactura Num
15 importe String 15,2 Ej.: 10.000 = 000000001000000 moneda String 1
1= Guaraní, 2= Dólar.
medioPago Num 1 1=Efectivo, 2=Cheque
codTransaccion Num 10 Identificador único de la transacción.

{
"usuario": "test",
"password": "*134*",
"nroFactura": "60",
"moneda": "1",
"importe": "335500",
"codTransaccion": "0012929861"
}

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CoralTree Systems Limited
Company Registration Number 5021022.
Registered Office:
12-14 Carlton Place
Southampton
Hampshire
SO15 2EA
VAT Registration Number 834 1020 74.