How to write SAP ABAP web service and consume it in PHP

Last time i spend lot of time to develop SAP ES webservices connected to PHP. Why PHP? Because PHP was fastest method for me. Without starting do it in Java/Tomcat. But now i thing Tomcat will be better… I want o share some information about my work with SAP webservices.

At the beginning most time I spent on configure SAP basis problems with web-services. Roles setting ect.

Basic information about SAP and PHP configuration

1. SAP ABAP – development
   1. Destination typu „G” InAcT (SM59)  (otwarty na konkretny skrypt PHP)
   2. Embedded pakiet ZIPSZWEBSERVICES
   3. Function RFC (external) ZWEBSERV_INACT
   4. Logs ‘BAL_LOG_MSG_ADD’ + view data by IW33 (Tr. SLG1)
   5. Enterprise Serwis: Z_WEBSERV_PM3
2. SAP AS
   1. Define webserwis SAP WSLD
3. How it works in SAP?
   1. Simple JOB  fill public table named: ZWEBSRV_PM in procedure Z_JOB_FILL_ZWEBSRV_PM (call with variant
4. Security
   1. Communication by HTTPS (simple but effective in corp. environment)
5. InAcT – server Windows x64 2012 R1 (planned migrate do Linux)
   1. Server Apache 2.4/PHP 5.3 (+biblioteka SOAP)
   2. Skrypt PHP index.php
   3. Windows job scheduler call PHP http://SOAP/index.php

Basic information about run and start web services in SAP

•  SAP Note 1300943
• Transport web-services SAP Note (need password) no. 1300943

PHP implementation

• Apache 2.4/PHP 5.6 (now 7)
• Enable SOAP, XML in php.ini config file
  • The SoapClient class provides a client for » SOAP 1.1, » SOAP 1.2 servers à [PHP_SOAP]  extension=php_soap.dll
• Przykład kodu wywołania SOAP AS SAP z poziomu PHP

$WSDL = "http://xxx.pl:8000/sap/bc/srt/wsdl/bndg_52B09DB8E7B611E0E10080000A150CAA/soap11/wsdl11/allinone/standard/document?sap-client=030"; 
$SOAP_CLIENT_PARAM = array('login' => 'WEBSERVICES', 'password' => *********', 'trace' => true, 'exceptions' => true); 
$soapClient = new SoapClient($WSDL, $SOAP_CLIENT_PARAM); 
$soapReturn = $soapClient->ZWebservPm3(array('P_ZIPSISTAT','P_ZIPSESTAT'));

SAP implementation

1. Włączenie webswerwisów na ERP
2. Konfiguracja oraz Noty
3. Zdefiniowanie modułu funkcyjnego
   1. Typu RFC
   2. Gdzie parametry przekazywane są przez wartość – Pass Values
4. Zdefiniowanie webserwisu
   1. Utworzenie Enterprise Service
   2. Service Provider
   3. Existing ABAP Objects
5. Function Module
6. W wyniku powstaje webserwis i definicja webserwisu plik WSLD.
7. Należy zdefiniować PROXY w SOAMANAGER.
   1. Provider Security
   2. Configuration of Web Service Binding
   3. SSL
   4. Secure Coversation
   5. Authentitaction Setings
   6. User/ID Password
   7. WSDL Generation
   8. WSDL Format – Standard
   9. Binding SOAP Version –  SOAP 1.1
   10. Przy takich ustawieniach generowany jest WSLD .

 What next?

1. Zdefiniowanie i wykorzystanie JMS http://en.wikipedia.org/wiki/Java_Message_Service
2. UUDI http://en.wikipedia.org/wiki/Universally_unique_identifier
3. Poprawa bezpieczeństwa przez szyfrowanie komunikatów (HTTPS/SSL).
4. Przejście na klienta JAVA.

Links

1. https://www.codeproject.com/tips/671437/creating-web-service-using-php-within-minutes/
2. http://sapuniversity.eu/creation-and-consuming-of-a-webservice-in-sap-abap-without-the-obsolete-transaction-lpconfighttp://sapuniversity.eu/creation-and-consuming-of-a-webservice-in-sap-abap-without-the-obsolete-transaction-lpconfig
3. PHP, SAP and SSL http://wiki.scn.sap.com/wiki/download/attachments/250646828/PHP+-+How+to+Guide.pdf?original_fqdn=wiki.sdn.sap.com&version=2&modificationDate=1318254213504