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redaxis.rpgle
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**free
//*********************************************************************
//* *
//* IBM Web Services Client for ILE *
//* *
//* FILE NAME: redaxis.RPGLE *
//* *
//* DESCRIPTION: Source to do REST request using transport APIs *
//* The intended target/server is a local Node-RED *
//* instance running in the PASE environment *
//* Based on https://www.ibm.com/developerworks/community/wikis/
// form/anonymous/api/
// wiki/cedbf05d-28cf-4686-bb3d-064b3d9d343f/
// page/20a19c3e-fb0b-49d6-a6e3-2adde04679d2/
// attachment/2de6ce30-bf0e-461e-a5f5-28c0b9e51602/
// media/restRS.rpgle
//* *
//*********************************************************************
//* LICENSE AND DISCLAIMER *
//* ---------------------- *
//* This material contains IBM copyrighted sample programming source *
//* code ( Sample Code ). *
//* IBM grants you a nonexclusive license to compile, link, execute, *
//* display, reproduce, distribute and prepare derivative works of *
//* this Sample Code. The Sample Code has not been thoroughly *
//* tested under all conditions. IBM, therefore, does not guarantee *
//* or imply its reliability, serviceability, or function. IBM *
//* provides no program services for the Sample Code. *
//* *
//* All Sample Code contained herein is provided to you "AS IS" *
//* without any warranties of any kind. THE IMPLIED WARRANTIES OF *
//* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND *
//* NON-INFRINGMENT ARE EXPRESSLY DISCLAIMED. *
//* SOME JURISDICTIONS DO NOT ALLOW THE EXCLUSION OF IMPLIED *
//* WARRANTIES, SO THE ABOVE EXCLUSIONS MAY NOT APPLY TO YOU. IN NO *
//* EVENT WILL IBM BE LIABLE TO ANY PARTY FOR ANY DIRECT, INDIRECT, *
//* SPECIAL OR OTHER CONSEQUENTIAL DAMAGES FOR ANY USE OF THE SAMPLE *
//* CODE INCLUDING, WITHOUT LIMITATION, ANY LOST PROFITS, BUSINESS *
//* INTERRUPTION, LOSS OF PROGRAMS OR OTHER DATA ON YOUR INFORMATION *
//* HANDLING SYSTEM OR OTHERWISE, EVEN IF WE ARE EXPRESSLY ADVISED OF *
//* THE POSSIBILITY OF SUCH DAMAGES. *
//* *
//* <START_COPYRIGHT> *
//* *
//* Licensed Materials - Property of IBM *
//* *
//* 5770-SS1 *
//* *
//* (c) Copyright IBM Corp. 2016, 2019 *
//* All Rights Reserved *
//* *
//* U.S. Government Users Restricted Rights - use, *
//* duplication or disclosure restricted by GSA *
//* ADP Schedule Contract with IBM Corp. *
//* *
//* Status: Version 1 Release 0 *
//* <END_COPYRIGHT> *
//* *
//*********************************************************************
//*
//* CRTrpgMOD MODULE(AMRA/RESTrs) SRCSTMF('/restrs.rpgle') DBGVIEW(*ALL)
//*
//* CRTPGM PGM(AMRA/RESTRS) MODULE(AMRA/RESTRS) BNDSRVPGM((QSYSDIR/QAXIS10CC))
//*
/COPY /qibm/proddata/os/webservices/V1/client/include/Axis.rpgleinc
DCL-S rc INT(10);
DCL-S tHandle POINTER;
DCL-S uri CHAR(200);
DCL-S response CHAR(32768);
DCL-S request CHAR(32768);
DCL-S propBuf1 CHAR(100);
DCL-S propBuf2 CHAR(100);
DCL-S propInt INT(10);
DCL-S NULLSTR CHAR(1) inz(X'00');
DCL-S NONE CHAR(5);
//*--------------------------------------------------------------------
//* Web service logic. The code will attempt to invoke a Web service.
//*-------------------------------------------------------------------
// Uncomment if need to debug.
// axiscAxisStartTrace('/tmp/axistransport.log': *null);
// Set URI to web service
uri = 'https://localhost:1880/rpg-test';
// Create HTTP transport handle.
tHandle = axiscTransportCreate(uri:AXISC_PROTOCOL_HTTP11);
if (tHandle = *NULL);
PRINT ('TransportCreate() failed');
return;
endif;
// Set HTTP method - redundant since default is GET
propBuf1 = 'GET' + X'00';
rc = axiscTransportSetProperty(tHandle: AXISC_PROPERTY_HTTP_METHOD:
%addr(propBuf1));
// Flush transport so request is sent and receive response.
rc = axiscTransportFlush(tHandle);
if (rc = -1);
checkError ('TransportFlush()');
else;
receiveData();
endif;
// Cleanup handle.
axiscTransportDestroy(tHandle);
*INLR=*ON;
// =========================================
// Print to standard out
// =========================================
DCL-PROC PRINT ;
dcl-pi *n;
msg varchar(5000) const;
end-pi;
dcl-pr printf extproc(*dclcase);
template pointer value options(*string);
dummy int(10) value options(*nopass);
end-pr;
dcl-c NEWLINE CONST(x'15');
printf(%TRIM(msg) + NEWLINE);
END-PROC PRINT;
// =========================================
// Handle error
// =========================================
DCL-PROC checkError ;
dcl-pi *n;
msg varchar(5000) const;
end-pi;
DCL-S axisCode INT(10);
DCL-S statusCode POINTER;
DCL-S rc INT(10);
axisCode = axiscTransportGetLastErrorCode(tHandle);
PRINT (msg + ' call failed: ' +
%CHAR(axisCode) + ':' +
%STR(axiscTransportGetLastError(tHandle)));
END-PROC checkError;
// =========================================
// Receive data
// =========================================
DCL-PROC receiveData ;
dcl-pi *n;
end-pi;
DCL-S header POINTER;
DCL-S property CHAR(100);
DCL-S bytesRead INT(10) inz(0);
clear response;
clear header;
rc = axiscTransportReceive(tHandle:
%ADDR(response):
%SIZE(response): 0);
if (rc = 0);
PRINT ('No data to read');
else;
dow rc > 0 AND bytesRead < %SIZE(response);
bytesRead = bytesRead + rc;
rc = axiscTransportReceive(tHandle:
%ADDR(response)+bytesRead:
%SIZE(response)-bytesRead:
0);
enddo;
endif;
if (rc = -1);
checkError ('TransportReceive()');
elseif (bytesRead > 0);
PRINT ('Bytes read: ' + %CHAR(bytesRead));
PRINT ('Data: ' + response);
endif;
// Dump status code
rc = axiscTransportGetProperty(tHandle:
AXISC_PROPERTY_HTTP_STATUS_CODE:
%addr(header));
if (rc = -1);
checkError ('TransportGetProperty()');
endif;
PRINT ('HTTP status code: ' + %str(header));
END-PROC receiveData;