Re: JSON Error Message

On May 18, 2020, at 4:00 PM, Jay Vaughn <jeffersonvaughn@xxxxxxxxx> wrote:

Jack,

Sql json functions can look complex on the service but it can easily be
implemented using a programming approach I take in something I've
developed. Take a look at the sql json api program at the end of this
document to see how you can easily build complicated json structures.
The idea is to keep them strings and create multiple procedures to keep
appending to the json structure (ie. the getJsonResponseObject_01
procedure can be replicated many times for different related objects).

https://jeffersonvaughn.com/gallery/coreiRST%20Overview.pdf

Jay

On Mon, May 18, 2020 at 2:33 PM Jack Prucha <Jack.Prucha@xxxxxxx> wrote:

Hello Jon,

I attended your RPG/DB2 seminars in the suburbs of Chicago. Although I
live far from there now I grew up a few miles away from the hotel. It was
convenient to visit family and save the company some $ by having my sister
pick me up at the airport.

Yes, I successfully validated with JSONLINT. Copied the results out of
the Run SQL Scripts result window.

This is what I pasted in:
{"id":1,"userId":10415785,"accountNumber":null,"dateOfBirth":"1999-08-12","name":{"id":4,"firstName":"Arun","middleName":null,"lastName":"Sashidhar","suffix":null},"permanentAddress":{"id":5,"street":"999
Chase Hill Blvd Apt 922","street2":null,"city":"San
Antonio","state":"TX","postalCode":"78256-1041","country":"US","county":null},"mailingAddress":{"id":3,"street":"999
Chase Hill Blvd Apt 922","street2":null,"city":"San
Antonio","state":"TX","postalCode":"78256-1041","country":"US","county":null},"identification":"2001","identificationType":"SSN","contact":{"id":2,"mobilePhone":"","textOptIn":false,"homePhone":"","workPhone":"","email":"
dsad@xxxxxxx","emailIsValid":false},"account":{"id":6,"status":"KS","type":"IND","subType":"UTMA","beneficiary":{"id":7,"name":{"id":8,"firstName":"Arun","middleName":null,"lastName":"J","suffix":null},"dob":"1969-09-18","identification":"2001","identificationType":"SSN","stateOfResidence":"NC"},"investment":{"id":10,"investmentOptions":[{"investmentOptionId":"cd","percentContribution":3},{"investmentOptionId":"de","percentContribution":97}]},"contribution":{"id":13,"amount":10001.1,"paymentMethod":{"paymentType":"ACH","id":11,"as400Id":0,"routingNumber":"999999999","newRoutingNumber":"000000000","bankName":"STATE
EMPLOYEES CREDIT
UNION","accountNumber":"999999999","accountType":"C","accountName":null,"status":"A","preferred":false,"saveForFuture":true},"frequency":"ONCE"},"application":{"id":9,"startDate":"2020-03-31
09:31:33","completedDate":null,"submissionDate":null,"isReadProgramDescription":true,"isAgreedToTerms":true,"electronicSignature":true},"eStatements":true}}

The SQL JSON looked complex. I'll research that idea.

Thx
Jack

-----Original Message-----
From: RPG400-L <rpg400-l-bounces@xxxxxxxxxxxxxxxxxx> On Behalf Of Jon
Paris
Sent: Monday, May 18, 2020 2:03 PM
To: RPG programming on IBM i <rpg400-l@xxxxxxxxxxxxxxxxxx>
Subject: Re: JSON Error Message

Have you validated the JSON with something like JSONLINT ? I have found
several times that I had invisible characters in the JSON that screwed it
up.

It would also help if you showed the json and not just the DS.

Since you are already using SQL to access the JSON why use DATA-INTO and
not just use the SQL abilities?

On May 18, 2020, at 12:57 PM, Jack Prucha <Jack.Prucha@xxxxxxx> wrote:

I'm working with our web team who is sending me a JSON document. After

a simple proof of concept many months ago and test documents, I received
the first real output from the web process.

After changing my DS to look more like the output of YAJLGEN, I'm
getting this error message out of YAJLINTO

1002: lexical error: invalid char in json text.█ The parser for the
DATA-INTO operation detected error code 1002.

The unprintable character displays on a green screen as a question

mark. I don't see any unusual characters when viewing the JSON data using
Run SQL Scripts or in debug.

Any suggestions about how to fix this? I tried filtering the JSON

hoping to make sure that there's no unprintable characters under x'40'.

wrkContent = %ScanRpl(x'000102030405060708090A0B0C0D0E0F' +
'101112131415161718191A1B1C1D1E1F' +
'202122332425262728292A2B2C2D2E2F' +
'303132333435363738393A3B3C3D3E3F':
' ':wrkContent);

We're on 7.3. The web process inserts a record into a db2 file with a

CLOB column. This is what the column definition looks like:

Transaction_Content FOR WTCONTENT CLOB ALLOCATE(100) CCSID 37
NOT NULL DEFAULT '' )

This is the JSOSN code from the program:

EXEC SQL DECLARE CWE100R0 CURSOR FOR
SELECT a.wtRecID, a.wtWebID, a.wtSts, a.wtStsDte, a.wtContent
FROM cvWebTx A

EXEC SQL FETCH NEXT FROM CWE100R0 INTO
:wtRecID, :wtWebID, :wtSts, :wtStsDte, :wrkContent;

Dcl-s wrkContent SQLTYPE(Clob:128000);

// Extract data from JSON document (cvWebTX.wtContent)
Data-Into txJSONDoc
%Data(wrkContent:'AllowExtra=Yes ' +
'doc=string ' +
'AllowMissing=Yes ' +
'Case=Convert ' +
'CountPrefix=Count_')
%Parser('YAJLINTO':'{"value_null":" "}');


Thanks in Advance
Jack


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