RE: YAJLINTO and skip_nulls option

Thanks Jon.

In this case, I'm updating our inventory availability based on our inventory control system on the IBM i.

I request a list of item numbers from the site - it returns them with a current quantity available (on the web platform). If it differs from our current value, I post the current value.

So it makes no difference if I treat NULL as 0. IMHO, that is a horrible value for a quantity available, especially when they have "isAvailable": true or false.

Thanks again

-----Original Message-----
From: RPG400-L <rpg400-l-bounces@xxxxxxxxxxxxxxxxxx> On Behalf Of Jon Paris
Sent: Monday, May 19, 2025 4:18 PM
To: RPG programming on the IBM i (AS/400 and iSeries) <rpg400-l@xxxxxxxxxxxxxxxxxx>
Subject: Re: YAJLINTO and skip_nulls option

The only issue I can think of is that the elements will effectively be "missing" and you would have to code for that. What you need to code of course depends on how you intend to treat the nulls. What will you set the char field to? The numerics? Do you have any special processing to do when this occurs?

I recall a situation a while ago where numeric nulls could not be treated as zero, because zero was a valid response. That meant that allowmissing was not an option and we had to use countprefix (which tends to be my preferrered option anyway).

Beyond that I can't think of anything.



Jon Paris
Jon.Paris@xxxxxxxxxxxxxx

On May 19, 2025, at 3:43 PM, Greg Wilburn <gwilburn@xxxxxxxxxxxxxxxxxxxxxxx> wrote:

I'm consuming an API that can return null for both character and numeric JSON values.

I would like to keep the "numeric values" (quantity, etc.) as numeric rather than varchar... So I downloaded a newer version of YAJL from Scott's website and experimented with the "skip_nulls" option (I was previously using "value_null").

This seems to work as I expected.... Just wondering if there are any caveats when using this option? I couldn't find much on this subject.

TIA
Greg

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