What is RAP handler method in SAP (BC-ESI-RAP - RESTful ABAP Programming Model)?

SAP Term: RAP handler method

• Component: BC-ESI-RAP

• Component Name: RESTful ABAP Programming Model

• Description: Special method in a RAP handler class of an ABAP behavior pool that is called during the RAP interaction phase. The names of handler methods can be freely chosen except for draft actions and augmentation.

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• Key Concepts: 
  RAP handler method is a part of the BC-ESI-RAP RESTful ABAP Programming Model. It is a method that is used to handle requests from a client application. The handler method is responsible for processing the request, performing the necessary business logic, and returning a response to the client. 
  
  How to use it: 
  The RAP handler method is used to process requests from a client application. The handler method takes in the request data, performs the necessary business logic, and returns a response to the client. The response can be in the form of an HTTP status code or an XML or JSON document. 
  
  Tips & Tricks: 
  When writing a RAP handler method, it is important to ensure that the response is returned in the correct format. Additionally, it is important to ensure that all necessary business logic is performed before returning the response. 
  
  Related Information: 
  For more information on the BC-ESI-RAP RESTful ABAP Programming Model, please refer to SAP's official documentation at https://help.sap.com/viewer/product/BC-ESI-RAP/latest/en-US.