RE: [EXTERNAL] Data-INTO with double array fails but is valid JSON

   Thanks Greg,

   I would love to be proved wrong but from searching I found a thread on
   Scott's blog that explained that as RPG does not support multi-dimentional
   arrays, the JSON I have requires a 2 dimension array which is not
   supported.

   Maybe Jon or Scott will see this and confirm/deny this point.

   I will have a look at the data structure you provided and see if I can
   test it.

   Do really appreciate your assistance.

   Cheers
   Don

    

   Don Brown

   Senior Consultant
    
   [1]OneTeam IT Pty Ltd
   P: 1300 088 400

   -----Original Message-----
   From: Greg Wilburn <gwilburn-kuYYJ3CQfvZxq3Q2jbZZw/[email protected]>
   Sent: Thursday, 9 October 2025 10:32 PM
   To: RPG programming on IBM i <[email protected]>
   Cc: Don Brown <[email protected]>
   Subject: RE: [EXTERNAL] Data-INTO with double array fails but is valid
   JSON

   Don,

   I took your example below and ran it through YAJLGEN

   // FIXME:
   // - The field lengths (varchar/packed) are guesses
   // and should be adjusted based on your business rules.
   // - The array lengths (dim keywords) are also guesses
   // and should be adjusted based on your business rules

   dcl-proc readTheJson;

   dcl-ds jsonDoc qualified;
   num_ERROR_DETAILS int(10) inz(0);
   ERROR_DETAILS varchar(1) dim(1); // empty;
   num_ERRORED_BOOKING_NUMBERS int(10) inz(0);
   ERRORED_BOOKING_NUMBERS varchar(8) inz('') dim(1);
   num_IGNORED_BOOKING_NUMBERS int(10) inz(0);
   IGNORED_BOOKING_NUMBERS varchar(1) dim(1); // empty;
   num_SAVED_BOOKING_NUMBERS int(10) inz(0);
   SAVED_BOOKING_NUMBERS varchar(8) inz('') dim(4);
   dcl-ds SUMMARY;
   ERROR packed(1) inz(0);
   IGNORED_DUPLICATE packed(1) inz(0);
   SAVED packed(1) inz(0);
   end-ds;
   end-ds;

   dcl-s ifsPathName varchar(5000);

   ifsPathName = '/apis/amazonsp/072/error.json';

   data-into jsonDoc %DATA( ifsPathname
   : 'doc=file case=convert countprefix=num_')
   %PARSER( 'YAJLINTO'
   : '{ "document_name": "jsonDoc", +
   "number_prefix": "YAJL_" }');

   end-proc;

   -----Original Message-----
   From: RPG400-L <rpg400-l-bounces-+hD5IHI5Xscn3HwCXmMcX9BPR1lH4CV8@public.gmane.org> On Behalf Of Don
   Brown via RPG400-L
   Sent: Wednesday, October 8, 2025 6:04 PM
   To: 'RPG programming on IBM i' <[email protected]>
   Cc: Don Brown <[email protected]>
   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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