Simple SAP related flow in MuleSoft application – IDOC based

Similarly as in my previous post I’m sharing a little about my experience while working with MuleSoft Mule ESB platform.

In next text I depict simple flow in the mule which listens for incoming data coming into the mule’s app from an IDoc generated in SAP. Once the IDoc of certain type is created in the SAP it is displayed in the app’s console. Needless to say that the IDoc gets generated in the SAP when some business data gets modified (created/changed/deleted). There is quite extensive configuration to be done at SAP side with regards to ALE customizing in order to setup the IDoc generation. On the mule side there is just an SAP Connector configured which acts as the IDoc listener. The IDoc Basic Type needs to be specified in its Object Name field. All parameters for connection form the mule app to the SAP are taken via parameters form mule-app.properties file.

Here’s the mule app’s console output looks like:

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Simple SAP related flow in MuleSoft application – BAPI based 

Simple SAP related flow in MuleSoft application – BAPI based

Recently I worked for one integration focused assignment. We used integration platform from MuleSoft called Mule ESB (Enterprise Service Bus). The Mule ESB is a lightweight integration platform based in Java used to integrate different systems. As my background is mostly SAP and in this space the SAP has its own integration platform called SAP PI it was whole new world to me to work with the mule.

In next paragraphs I depict simple flow in the mule which calls a BAPI at the SAP side and shows the data returning by the BAPI. The application is started by triggering URL (http://localhost:8081/) on which HTTP Listener element listens. After that a call of the BAPI in the SAP is executed and returned data is written by Logger into the app’s web page where it was triggered from.

From configuration point of view there must be whole setup of ALE customizing done at the SAP side. At the mule’s side there is SAP Connector used in the flow. It is acting as trigger of the BAPI call. The BAPI name is specified in Object Name of the SAP Connector element’s properties. Along the Object Name also XML Definition (see below) needs to be provided. 

Here’s how the XML definition for BAPI looks like:

Here’s the mule app output:

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Simple SAP related flow in MuleSoft application – IDOC based