Skip to Content
Author's profile photo Jochen Rundholz

SOA consumption on Android

h1. Introduction  Even though SAP offers a wide range of software and features there are always use-cases which cannot be covered by standard software. In these cases this blog should you give an idea how a mobile client can consume an SAP enterprise service. The coding shown here runs on an Android device, but it might be possible to adapt the code to run on other mobile platforms as well.   The complete code can be downloaded from SVN on code exchange  ( Please get it there to have a look into it while reading this blog.  h1. Prerequisites In this blog I assume that the reader is familiar with Android Development as well as SOA web services. The most important steps will be explained, but not every single line of code. h1. Overview  The final application looks like this:imageIt has two input fields, one for the material number and one for quantity. Upon pressing the “Send Order!” button a web service is called to create the purchase order (PO). Once the order is created it shows an alert dialog with the PO:imageIn addition to the main screen above there is a preferences screen:image

Assigned Tags

      You must be Logged on to comment or reply to a post.
      Author's profile photo Pierre Dominique
      Pierre Dominique
      Hi Jochen,

      Using REST Web Services with the JSON format would be much more efficient than SOAP Web Services. The size of the SOAP payload is just too big in a mobile scenario where bandwidth is limited.


      Author's profile photo Paul Aschmann
      Paul Aschmann
      Hi Pierre,

      Unfortunately SAP ERP does not currently support REST, only SOAP which makes this a problem. A new platform called "Project Gateway" will be released shortly (and some are already using - DUET) which enables REST.

      Author's profile photo Pierre Dominique
      Pierre Dominique
      Hi Paul,

      I know that SAP does not support REST but nothing prevents you from creating your own REST Web Services on a SAP system (ABAP or Java). The first blog on this topic was posted on SDN in 2004, we don't have to wait for Project Gateway.


      Author's profile photo Jochen Rundholz
      Jochen Rundholz
      Blog Post Author

      you are absolutely right about your comments. We only want to show the options you have in case something prevents you from implementing your own REST services. It is all about choices customers should have to pick whatever they would like to use.

      Regards, Jochen

      Author's profile photo Former Member
      Former Member
      Hi Dominique,

      why so aggressive? Why not ask the OP, who provided a nice piece of work on the consumption of an already exisiting service, if he had bad experience with performance of the service, with the performance of XML parsing on the device, etc ...
      Regarding the bandwidth, the size of any single image of our daily favourite nude lady is way larger than the average enterprise service's payload. And do we care? - Nope, time solves this problem and time has already come to many places.