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The JSON ABAP Konverter
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LICENSE JSON ABAP Konverter 0.1 Feb 25, 2019
NOTICE JSON ABAP Konverter 0.1 Feb 25, 2019 fix typo Mar 7, 2019


The JSON ABAP Konverter

Getting your JSON data converted into proper ABAP structures can be a pretty cumbersome experience, especially in the new ABAP Environment on the SAP Cloud Platform. There, you can't use some of the existing JSON converters/abstraction libraries to convert from ABAP to JSON or vice versa. The only ways are to use simple transformations or the whitelisted SXML library. These options are either inflexible or pretty complicated to handle - or even both...

The JSON ABAP Konverter (JAK) wants to make your life easier. Just hand your JSON raw data as string or encapsulated in an HTTP request to the JAK library and it will automatically transfer the JSON data to a compatible ABAP structure or internal table - and vice versa. No need to develop anything on your own - JAK will do the magic for you. Data structure matching is done based on the names of the table/structure rows and the JSON identifiers. The ABAP data field can contain more or less fields than the JSON which is used, JAK will automatically only copy the matching fields and silently ignore the rest.


Please make sure to fulfill the following requirements:

  • You have access to an SAP Cloud Platform ABAP Environment instance (see here for additional information)
  • You have downloaded and installed ABAP Development Tools for SAP NetWeaver (ADT)
  • You have created an ABAP Cloud Project in ADT that allows you to access your SAP Cloud Platform ABAP Environment instance
  • You have installed the abapGit plug-in for Eclipse via the updatesite
  • You have installed the YY Data Service or run an ABAP instance which supports the APACK package and dependency manager. This will import the YY Data Service automatically when you import this project.

Download and Installation

Use the abapGit plug-in to install the JSON ABAP Konverter by executing the following steps:

  • In ADT create the package /DMO/JAK as a subpackage under /DMO/SAP (keep the defaulted values)
  • In ADT click on Window > Show View > Other... and choose the entry abapGit Repositories to open the abapGit view
  • Make sure to have the correct ABAP Cloud Project selected (See the little headline in the abapGit view for the current project)
  • Click on the + icon to clone an abapGit repository
  • Provide the URL of this repository:
  • On the next page choose the master branch and provide the package /DMO/JAK
  • Provide a valid transport request and choose Finish. This starts the cloning of the repository - which might take a few minutes
  • Once the cloning has finished, refresh your project tree
  • Usually, the imported objects are not activated after cloning. Use the mass activation feature in ADT to activate those artifacts.


Incoming data

You already have a JSON with data or you get it via an HTTP reqest and would like to transfer it to a compatible ABAP data field? Nothing easier than that: Just get an instance of ZCL_JAK_DATA_IN by calling the corresponding static method - either INITIALIZE_WITH_HTTP_REQUEST or INITIALIZE_WITH_JSON. Your ABAP data field can then simply be filled by calling the method ZIF_JAK_DATA_IN~FILL.

Outgoing data

You have an ABAP data field ready to send out to the world as JSON - either directly the text or in an HTTP response? If you want to get it converted automatically, simply initialze ZCL_JAK_DATA_OUT by calling the INITIALIZE method and pass your field to it. The methods ZIF_JAK_DATA_OUT~GET_JSON and ZIF_JAK_DATA_OUT~PREPARE_HTTP_RESPONSE will do the job for you.

Known Issues

As mentioned before, after cloning a abapGit repository some objects might not be active. Use the mass activation feature in ADT to activate those artifacts.


Copyright (c) 2019 SAP SE or an SAP affiliate company. All rights reserved. This project is licensed under the SAP Sample Code License except as noted otherwise in the LICENSE file.

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