What is RAP ETAG dependent entity in SAP BC-ESI-RAP - RESTful ABAP Programming Model?

SAP Term: RAP ETAG dependent entity

• Component: BC-ESI-RAP

• Component Name: RESTful ABAP Programming Model

• Description: RAP BO entity that uses the ETag field of another entity for optimistic concurrency control. Defined using the keyword etag dependent by _Assoc.

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• Key Concepts: 
  RAP ETAG dependent entity is a component of the BC-ESI-RAP RESTful ABAP Programming Model. It is an entity that is dependent on an ETAG (Entity Tag) value, which is a unique identifier for a specific version of a resource. The ETAG value is used to ensure that the resource has not been modified since the last request. 
  
  How to use it: 
  When making a request to an ETAG dependent entity, the client must include the ETAG value in the request header. This allows the server to compare the ETAG value with the current version of the resource and determine if any changes have been made since the last request. If no changes have been made, then the server will return a 304 Not Modified response code. 
  
  Tips & Tricks: 
  When making requests to ETAG dependent entities, it is important to remember to include the ETAG value in the request header. This will ensure that you are always working with the most up-to-date version of the resource. 
  
  Related Information: 
  For more information about RAP ETAG dependent entities, please refer to SAP Help Portal documentation on BC-ESI-RAP RESTful ABAP Programming Model.