RXS_GetJsonString()

This subprocedure retrieves JSON composed by RXS_CreateJson() and the other JSON composition subprocedures.

New in RXS 3.5.0:

Enhancements

Corrected an issue where retrieving a JSON string could sometimes enter a looping condition when certain hexadecimal characters were present in the composed JSON.

Subprocedure Prototype

`D RXS_GetJsonString... D PR Extproc('RXS_GetJsonString') D Opdesc D Like(RXS_Var16Mv_t) Rtnparm`	Returns the contents of the created JSON structure.
`D pCreateJsonDS... D Const LikeDS(RXS_JsonCreateDS_t) D Options(*Varsize)`	RXS_CreateJsonDS_t data structure which controls how RXS_CreateJson() functions.

Example Code

Ex. 1: Retrieve JSON from JSON structure


*--------------------------------------------------------------
* This example creates a simple JSON object, adds a string data
* field to it, retrieves the created JSON, and then calls
* RXS_DestroyJson() to clean up.
*--------------------------------------------------------------
H DFTACTGRP(*NO) BNDDIR('RXSBND') ACTGRP(*CALLER)

 /copy QRPGLECPY,RXSCB

D JSON            S                   Like(RXS_Var64Kv_t)

D CreateJsonDS    DS                  LikeDS(RXS_CreateJsonDS_t)
D RootDS          DS                  LikeDS(RXS_JsonStructureDS_t)
 /free
   RXS_ResetDS( CreateJsonDS : RXS_DS_TYPE_CREATEJSON );
   RXS_ResetDS( RootDS : RXS_DS_TYPE_JSONSTRUCTURE );
   
   CreateJsonDS.JsonStructureType = RXS_JSON_STRUCTURE_OBJECT;
   RootDS = RXS_CreateJson( CreateJsonDS );

   RXS_ComposeJsonString( 'hello' : 'world' : RootDS );

   JSON = RXS_GetJsonString( CreateJsonDS );
   // JSON looks like:
   //
   // {"hello":"world"}

   RXS_DestroyJson( CreateJsonDS );

   *INLR = *ON;
 /end-free

Data Structures

RXS_CreateJsonDS_t

`D RXS_CreateJsonDS_t... D DS Qualified Template Inz`
`D ReturnedErrorInfo... D LikeDS(RXS_ReturnedErrorInfoDS_t) Inz`
`D DataStructureType... D 5I 0 Inz(RXS_DS_TYPE_CREATEJSON)`	Internal use only
`D OnErrorMessageType... D 5I 0`
`D Prettify N Inz(RXS_NO)`	If set to RXS_YES, JSON retrieved with RXS_GetJsonString() will be formatted with whitespace to be "pretty" and more human readable. If set to RXS_NO, JSON will be returned in a compact form with as little whitespace as possible. Valid Values: `RXS_YES` `RXS_NO` Default Value: `RXS_NO`
`D JsonStructureType... D N Inz(RXS_JSON_STRUCTURE_OBJECT)`	If set to RXS_JSON_STRUCTURE_OBJECT, the JSON document being created will begin with a root JSON object. If set to RXS_JSON_STRUCTURE_ARRAY, it will begin with a root JSON array. Valid Values: `RXS_JSON_STRUCTURE_OBJECT` `RXS_JSON_STRUCTURE_ARRAY` Default Value: `RXS_JSON_STRUCTURE_OBJECT`
`D JsonStructurePtr... D * Inz(*Null)`	Internal use only
`D InputCcsid... D 10I 0 Inz(RXS_CCSID_JOB)`	Specifies the CCSID of the data being passed into the JSON composition subprocedures. Default is job CCSID. Default Value: `RXS_CCSID_JOB`
`D OutputCcsid... D 10I 0 Inz(RXS_CCSID_JOB)`	Specifies the CCSID that the JSON will be output as from RXS_GetJsonString(). Default is job CCSID. Default Value: `RXS_CCSID_JOB`
`D TrimVariables... D N Inz(RXS_NO)`	Determines whether to trim leading and trailing spaces from each value passed to RXS_ComposeJsonString() (RXS_YES), or to leave all spaces in place (RXS_NO). Valid Values: `RXS_YES` `RXS_NO` Default Value: `RXS_NO`