Yes, I did try YAJLGEN and because it is a two dimensional array it cannot
build a data structure.
I am now using the YAJL sub procedures which are working - just took me
some time to work out just how to use them.
You know the situation, many examples but none that are exactly what you
want 😊
Cheers
Don
Don Brown
Senior Consultant
[1]OneTeam IT Pty Ltd
P: 1300 088 400
-----Original Message-----
From: RPG400-L <rpg400-l-bounces@xxxxxxxxxxxxxxxxxx> On Behalf Of Greg
Wilburn
Sent: Thursday, 9 October 2025 10:27 PM
To: RPG programming on IBM i <rpg400-l@xxxxxxxxxxxxxxxxxx>
Subject: RE: [EXTERNAL] Data-INTO with double array fails but is valid
JSON
Have you tried using the YAJLGEN command to create the data structure?
Save your JSON on the IFS.
Use YAJLGEN to generate the Data Structure for you (into a source member).
I almost never create the DS myself (thanks Scott!).
Greg
-----Original Message-----
From: RPG400-L <rpg400-l-bounces@xxxxxxxxxxxxxxxxxx> On Behalf Of Don
Brown via RPG400-L
Sent: Wednesday, October 8, 2025 6:04 PM
To: 'RPG programming on IBM i' <rpg400-l@xxxxxxxxxxxxxxxxxx>
Cc: Don Brown <dbrown@xxxxxxxxxxxxxxxx>
Subject: [EXTERNAL] Data-INTO with double array fails but is valid JSON
<Reposted to the RPG List>
Hi
I am sure I have seen someone else with this error but searching the
archives has not found the incident.
The JSON has a double [[ ]] indicating two arrays. If I remove one set
(leaving [ ] ) it processes correctly with the data structure below.
So, we have an unnamed array inside an array, how do we build the data
structure for that ?
We have this JSON
{"error_details":[
["34515897: meter_off_time 2025-10-06 01:57:06+00:00 is equal to or before
meter_on_time '2025-10-06 02:45:04+00:00'"] ],
"errored_booking_numbers":["34515897"],
"ignored_booking_numbers":[],
"saved_booking_numbers":["34527032","34526927","34526855","34521442"],
"summary":{"error":1,"ignored_duplicate":0,"saved":4}}
I have checked and the JSON is valid.
This is the data structure.
We did originally have the "error_detail" in the structure but had the
same problem and removed thinking it may work.
dcl-ds SATSSData_rUploadData qualified template inz;
dcl-ds rData likeds(DKT_GeneralReturnData);
dcl-ds summary;
saved zoned(5) inz(*zeros);
ignored zoned(5) inz(*zeros);
ignored_duplicate zoned(5) inz(*zeros);
error zoned(5) inz(*zeros);
end-ds summary;
count_saved_booking_numbers zoned(5) inz(*zeros);
saved_booking_numbers varchar(20) inz('')
dim(C_SATSS_MAXDATA);
count_ignored_booking_numbers zoned(5) inz(*zeros);
ignored_booking_numbers varchar(20) inz('')
dim(C_SATSS_MAXDATA);
count_errored_booking_numbers zoned(5) inz(*zeros);
errored_booking_numbers varchar(20) inz('')
dim(C_SATSS_MAXDATA); end-ds;
RPG Code
d rtnData DS likeds(SATSSData_rUploadData)
MONITOR;
Data-into rtnData %Data( %trim(rData.File) :
'doc=file case=convert allowmissing=yes allowextra=yes +
countprefix=count_ trim=all')
%Parser( 'YAJLINTO' );
on-error;
wrkMessage = 'Fail to Convert ' + %trim(rData.File);
UpdateLog(wrkMessage);
exsr Return;
endmon;
Error Message
Data-Into Error message:
Message ID . . . . . . : RNX0356
Date sent . . . . . . : 08/10/25 Time sent . . . . . . : 14:33:00
Message . . . . : The document for the DATA-INTO operation does not match
the RPG variable; reason code 5.
Cause . . . . . : While parsing a document for the DATA-INTO operation,
the
parser found that the document does not correspond to RPG variable
"rtndata"
and the options do not allow for this. The reason code is 5. The exact
subfield for which the error was detected is "rtndata". The options are
"doc=file case=convert allowmissing=yes allowextra=yes countprefix=count_
trim=all". The document name is
/HOME/SATSS/DOWNLOAD/AIT_20251008_001644918_SATSS_UPLOADDATA.json; *N
indicates that the document is not an external file. The parser is
'YAJLINTO'. *N indicates that the parser is a procedure pointer.
Recovery . . . : Contact the person responsible for program maintenance to
determine the cause of the problem.
Technical description . . . . . . . . : Reason codes and their meanings
are
as follows:
1. The specified path to the name was not found in the document.
2. The document contains too few array elements for array subfields of a
data structure.
3. The document contains too many array elements for array subfields of a
data structure.
4. The document is missing information to match subfields.
5. The document contains extra names that do not match subfields.
6. The document contains text content within the content for the subfields
of a data structure.
7. The document contains subfield items for RPG scalar fields, subfields
or
Any assistance appreciated.
Thanks
Don
Brisbane - Sydney - Melbourne
Don Brown
Senior Consultant
P: 1300 088 400
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