Example RPGLE web service program

**FREE
//
// Service Name - WEBGETSTR
// Function - This interface will be used to return all stockrooms for given company code
//
// WSDL - http://sysname:10010/web/services/WEBGETSTR?wsdl
// Author - Nick Litten (Freelance Software Projex - software.projex.com)
//
// This is a web service, called using the HTTP protocol
// and it accepts input data, processes it and returns results.
//
// Modification History:
// 2014-01-04 V1 Created
// 2014-01-12 V1.1 Added Department Code
// 2014-01-20 V1.2 Added Additional Return Codes
//

ctl-opt option(*srcstmt: *nodebugio)
  dftactgrp(*no)
  actgrp('NICKLITTEN')
  pgminfo(*pcml:*module)
  copyright('Version 1.2 January 19th 2015')
  bnddir('WEBSERVICE');

// Define Procedure and Interface parameters
// Return all stockrooms for given company code
dcl-s Company like(S21Stockroom.CONO20);
dcl-s User char(10);
dcl-s Stockroom char(2);
dcl-s RtnStatus char(1);
dcl-s RtnMessage char(256);
dcl-s RtnCount zoned(10);
dcl-s RtnList likeds(RtnArray) dim(999);

dcl-pi WEBGETSTR;
  *n like(Company) const;
  *n like(User) const;
  *n like(Stockroom) const;
  *n like(RtnStatus) options(*nopass);
  *n like(RtnMessage) options(*nopass);
  *n like(RtnCount) options(*nopass);
  *n like(RtnList) dim(999) options(*nopass);
end-pi;

// Use Data Structures to hold SQL file information for easy recognition
dcl-ds S21Stockroom extname('INP20') qualified end-ds;

// array to hold data reformatted ready for return
dcl-ds RtnArray qualified inz;
  RtnStockroom like(s21stockroom.strc20);
  RtnStockName like(s21stockroom.strn20);
  RtnDepartment like(s21stockroom.depc20);
  RtnAllowReceipts like(s21stockroom.rcta20);
  RtnAllowIssues like(s21stockroom.issa20);
  RtnAllowTransfers like(s21stockroom.trna20);
  RtnAllowSupplierOrders like(s21stockroom.spoa20);
  RtnAllowSalesOrders like(s21stockroom.slor20);
  RtnIncludeInStockValution like(s21stockroom.insv20);
end-ds;

dcl-ds LDA extname('LDA') dtaara(*lda) end-ds;

// Set SQL option, mainly to force cursor to close at endmodule
exec sql set option naming = *sys,
 commit = *none,
 usrprf = *user,
 dynusrprf = *user,
 datfmt = *iso,
 closqlcsr = *endmod ;

rtnCount = 0;
RtnMessage = *blanks;

// build conditions for this file access (note: do not qualify the file
// name with a library. It will be found from the library list defined to
// the webservice at http://<system>:2001/HTTPAdmin
exec SQL declare C1 cursor for
  select * from INP20
  where CONO20 = :Company
  for read only;

exec SQL open C1;

exec SQL fetch next from C1 into :S21Stockroom ;

dow sqlstt='00000' or %subst(sqlstt:1:2)='01';

  RtnCount += 1;
  RtnArray.RtnStockroom = S21Stockroom.STRC20;
  RtnArray.RtnStockName = S21Stockroom.STRN20;
  RtnArray.RtnDepartment = S21Stockroom.DEPC20;
  RtnArray.RtnAllowReceipts = S21Stockroom.RCTA20;
  RtnArray.RtnAllowIssues = S21Stockroom.ISSA20;
  RtnArray.RtnAllowTransfers = S21Stockroom.TRNA20;
  RtnArray.RtnAllowSupplierOrders = S21Stockroom.SPOA20;
  RtnArray.RtnAllowSalesOrders = S21Stockroom.SLOR20;
  RtnArray.RtnIncludeInStockValution = S21Stockroom.INSV20;
  RtnArray.RtnDepartment = S21Stockroom.DEPC20;
  
  // Store Datastructure values in next element of 'return array'
  RtnList(RtnCount) = RtnArray;
  
  // Read next record from Cursor selection
  exec SQL fetch next from C1 into :S21Stockroom ;

enddo;

exec SQL close C1;

// Set Returncode to values requested by calling system
if RtnCount < 1;
  RtnStatus = 'X';
  RtnMessage = 'Error! Company code ' + %trim(Company ) +
  ' has no stockrooms defined in System21! (File:INP20)';
else;
  RtnStatus = 'Y';
  In LDA;
  RtnMessage = 'Print queue for user ' + %trim(L#USER) +
  ' is ' + %trim(L#PRQU) ;
endif;

return;