How to pass arguements to CREATE_STREAM?

[former_member184739]

Dear Experts,

I am now passing Files from browser to SAP Gateway via media resources. I am able to receive file content in the following argument.

     ls_doc-content = is_media_resource-value.

I am able to pass value only to this single parameter called "IV_SLUG".But I also want to pass parameters like File name, File type, File size to this method "/IWBEP/IF_MGW_APPL_SRV_RUNTIME~CREATE_STREAM".

Can anyone help how to pass above values from frontend?

Regards

Prabaharan

[former_member184739 · Accepted solution]

Dear Experts,

Can anyone suggest on above question raised?

Regards

Prabaharan

[former_member184867 · Accepted solution]

You need to use the SLUG option to pass arguments..

You have to pass a header called 'slug' with the parameter in the request , you will receive it in the DPC

[former_member184739 · Accepted solution]

Atanu,

Thanks for your reply. I am aware of passing "SLUG" to DPC. But i am asking how to pass more than one paramter to DPC?

Regards

Prabaharan

[former_member184867 · Accepted solution]

I think There is no other option.

SLUG is a free text , you can pass all your parameters in the SLUG using some kind of separator.

In your use case what do you want to pass, which you think is not possible using SLUG ? 

[former_member184739 · Accepted solution]

Hi Atanu,

Thanks for your suggestion. I will implement it using only one param SLUG.

Regards

Prabaharan

[AshwinDutt · Accepted solution]

Hello Prabaharan,

Keys should go in SLUG parameter only.

Send multiple inputs with a separator and extract those using SPLIT in DPC.

Regards,

Ashwin

[former_member206574 · Accepted solution]

Hi Ashwin,

where can we extract  the Slug parameters? In DPC_EXT or in DPC class?

[AshwinDutt · Accepted solution]

Hello Venu,

There is already an importing parameter with name IV_SLUG in the Create_Stream method.

Just Read the value inside IV_SLUG and use accordingly.

Regards,

Ashwin

[former_member184867 · Accepted solution]

As per the best practice in DPC_EXT you need to extract it.

[former_member206574 · Accepted solution]

Thanks for the replies. and Former Member

Regards,

Venu

[Former Member]

hi Prabaharan,

I think the correct way to do this would be to post the extra properties to the entity, not the stream. If you need to have those properties stored as well, then the entity that the stream is related to can carry those properties. How would you be expecting to read them back? I'd expect them available by GET request, which is most easily done within an entity representation.

This is also much clearer and transparent for a service consumer; passing header values should be avoided unless they are required by the OData specification.

regards

Ron.

[Former Member]

Hi Ron,

this would be nice approach, but how can I read the entity data during file upload, when I will get only stream and headers into create_stream during fileupload?

Thanks,

Peter

[Former Member]

Hi Peter,

You won't get it that way - you are thinking in terms of one operation when you need two. You first post the entity to establish its existence on the backend. Within this entity you set any properties that you want it to have such as physical and logical IDs, "added by", etc.

Then you send the stream (as a PUT if I recall correctly) which, being part of the entity, will have the same key.

Cheers

Ron.