SAS BI Web services - RESTful JSON response - strign parameters only

[NY]

Hi Experts,

I have created a stored process with input and output parameters that I'm trying to call using SAS BI Web Services. My endpoint is JSON.

*ProcessBody; 
 
%global BANK 
        CALCULATIONTYPE 
        COMPANYID 
        CUSTOMERID 
        MODELCODE 
        PREVIOUSCALCULATIONDATE 
        PREVIOUSEXPECTEDLOSS 
        PREVIOUSLOSSGIVENDEFAULT 
        PREVIOUSPROBABILITYOFDEFAULT 
        QUESTIONNAIREGRADE; 
 
%STPBEGIN; 
 
*  End EG generated code (do not edit this line); 
 
 
proc printto log=" D:\RiskModels\RestLogs\web_service_test_%sysfunc(today(),yymmdd10.)-%sysfunc(compress(%sysfunc(time( ),time.),":")).log";
   run;
libname srcdata "D:\RiskModels\SourceData";
proc sql noprint;
select distinct Client_LGD format=16.8 into :lgd from srcdata.lgd_table where 
ID =&customerID;
quit;
%let probabilityOfDefault=0.5;
%let lossGivenDefault = &lgd;
%let expectedLoss = %sysevalf(&lgd. * &probabilityOfDefault.);


*  Begin EG generated code (do not edit this line); 
;*';*";*/;quit; 
%STPEND; 
 
*  End EG generated code (do not edit this line); 

My output parameters were defined as DOUBLE, but in the response in my API tester tool (POSTMAN for example),

they all show as STRING.

{
    "outputParameters": {
        "expectedLoss": "0.22068032",
        "probabilityOfDefault": "0.5",
        "lossGivenDefault": "0.44136064"
    }
}

When I looked in SAS documentation the example shows a response with string variables only.

Does anyone succeed transfer numeric parameters?

https://documentation.sas.com/doc/en/itechcdc/9.4/wbsvcdg/n1wblekhip1yrln1fv2s5b6a2d9f.htm 

Thank you very much,

Nufar.