Question Re: How can I use CREATE_DEEP_ENTITY method to upload multiple files? in Technology Q&A

How can I use CREATE_DEEP_ENTITY method to upload multiple files?

ajaygupta — Sat, 02 Dec 2017 19:37:07 GMT

Hello All,

I have designed a SAPUI5 screen where I need to upload multiple files along with multiple table entries into the SAP Backend system. I was able to SAVE table entries using CREATE_DEEP_ENTITY but could not find any solution to upload multiple files using this method.
I am aware of CREATE_STREAM method which is used for file upload but in my case I cannot use it because I need to submit the payload in a single batch operation in order to complete my workflow.

One possible way would be to return a status flag from CREATE_DEEP_ENTITY and then call CREATE_STREAM subsequently but this will only increase the complications in my workflow.

Re: How can I use CREATE_DEEP_ENTITY method to upload multiple files?

tejasChouhan — Mon, 04 Dec 2017 10:50:41 GMT

Hi Ajay,

You need to call this method inside the batch operation method. Check methods where you can add the logic. Redefine methods :

/IWBEP/IF_MGW_APPL_SRV_RUNTIME~CHANGESET_BEGIN. ( it_operation_info -> Use this parameter to call deep entity method, operation_type you can call here)

/IWBEP/IF_MGW_APPL_SRV_RUNTIME~CHANGESET_PROCESS.

/IWBEP/IF_MGW_APPL_SRV_RUNTIME~CHANGESET_END.

Regards,
Tejas

Re: How can I use CREATE_DEEP_ENTITY method to upload multiple files?

Ankit_Maskara — Tue, 26 Dec 2017 05:05:26 GMT

As far as I know upload of multiple files/media entities/streamed data is not possible via Deep Create method because the file contents is transferred as a raw stream/xtring data. If you use a POST call and encapsulate all the files for upload in a single attempt, you cannot upload files with diffirent formats because the ContentDisposition header will be unique. Further read - https://archive.sap.com/discussions/thread/3746296

Also , how are you planning to handle the file upload in case of creation/save of table entires fails? You need to have a handshaking mechnaism between table entry creation and file upload since it looks like file upload is dependent on the table entry creation status. Think about it.