ABAP Connectivity

Learn how to produce and consume business events

Blogs:

• An Introduction to Enterprise Event Enablement for SAP BTP ABAP Environment
• How to Create RAP Business Events in SAP BTP ABAP Environment
• Consume an Event using Event Consumption Model
• How to Create RAP Business Events in SAP S/4HANA 2022
• SAP S/4HANA Cloud integration with SAP Integration Suite, Advanced Event Mesh
• Add Custom Context Attributes for SAP Released Event Types
• Derived Events- How to Trigger Custom Event from an SAP Standard Event

Tutorials:

• Produce: How to Create RAP Business Events in SAP BTP ABAP Environment
• Consume: Event Consumption in ABAP Development Tools for Eclipse

Documentation on SAP Help Portal:

• SAP BTP: Integrating the Enterprise Event Enablement
• SAP S/4HANA: Enterprise Event Enablement
• ADT ABAP Development User Guide: Creating an Event Consumption Model
  

Get your hands on tutorials for SAP developers

• OData:
  Connect two instances of SAP BTP ABAP Environment
  Expose an ABAP CDS View Externally Using a Communication Scenario
• plain HTTP: Create an HTTP Service in SAP BTP ABAP Environment
• RFC: WebSocket RFC to Cloud Using SAP Business Connector
• SQL Service: Using ODBC driver for SQL Service

Documentation on SAP Help Portal:

• SAP BTP: Developing APIs for Inbound Communication
• SAP S/4HANA Public Cloud: Developing APIs for Inbound Communication
• SAP S/4HANA on-premise: Developing APIs for Inbound Communication

Get your hands on tutorials for SAP developers

• OData (Consumption Model): Connect two instances of SAP BTP ABAP Environment
• SOAP (Consumption Model): Consume SOAP Based Web Services with SAP BTP ABAP Environment
• plain HTTP: Get Data from an External API in SAP BTP ABAP Environment Using XML
• RFC (Consumption Model): Generate RFC Proxy Classes
• RFC (CALL FUNCTION): Connect Your On-Premise System with SAP BTP ABAP Environment

Documentation on SAP Help Portal:

• SAP BTP: Developing External Service Consumption
• SAP S/4HANA Public Cloud: Developing External Service Consumption
• SAP S/4HANA on-premise: Developing External Service Consumption

ABAP Channels enable real-time event-driven communication by replacing polling through push notifications based on publish-subscribe mechanism and WebSockets.

Blogs:

• Introduction
• Real-time eventing with ABAP Channels
• ABAP Channels support TCP/IP
• FAQ

Hands-On Exercises, Demos and Videos:

• Examples in ABAP system
• Get your hands on IoT scenarios with ABAP Channels
• ABAP Channels on YouTube

Documentation on SAP Help Portal:

• ABAP Channels
• Working with ABAP Channels using ADT in Eclipse

ABAP Daemons are long-living ABAP sessions. You can use ABAP Daemons to implement event handling in a reliable way.

Blogs:

• Introduction
• Create a simple Daemon in ABAP

Tutorials:

• Create a simple ABAP Daemon
• Forward MQTT and AMC messages using ABAP Daemon

Documentation on SAP Help Portal:

• ABAP Daemons
• Working with ABAP Daemons using ADT in Eclipse

MQTT (Message Queuing Telemetry Transport) protocol is used for machine-to-machine (M2M) communication and within Internet of Things (IoT) scenarios and based on publish-subscribe infrastructure.

AMQP (Advances Message Queuing Protocol) is an open internet protocol for robust and asynchronous messaging. AMQP allows point-to-point and publish-and-subscribe communications. 

Blogs:

• Introduction to MQTT Client

Tutorials:

• Publish and Receive MQTT Messages
• Forward MQTT and AMC messages using ABAP Daemon

Documentation on SAP Help Portal:

• MQTT Client
• AMQP Client

RFC is a high-performing SAP-specific communication protocol between Application Server ABAP/ABAP-based systems and remote systems

WebSocket RFC – RFC For the Internet
How to Profit from FAST RFC Serialization
How to Save a Lot of Time With the ABAP Connector (Transaction ACO_PROXY)

Unified Connectivity (UCON) framework allows you to secure RFCs by drastically reducing the number of remote-enabled function modules that can be accessed from outside, thus dramatically reducing the potential attack surface

UCON RFC - Overview presentation

UCON RFC - Guide to Setup and Operations

SAP recommends receiver validation to control destination usage in outgoing HTTP(S) connections. This feature improves your security by helping to prevent the insecure practice of destination sharing - that is many applications using the same destination. 

Receiver Validation HTTP - Enhance Your Security by Controlling Destination Usage