Question Re: Update(Put) No Response Data in Technology Q&A

Update(Put) No Response Data

former_member203215 — Thu, 25 Sep 2014 11:38:51 GMT

I Created a Gateway Service for Read,Create and Update . In Read(Get),Create(Post) I'm getting Response Data But for

Update(Put) I'm not getting any Response data as shown below

Thanks ...

Re: Update(Put) No Response Data

sreehari_vpillai — Thu, 25 Sep 2014 11:42:35 GMT

Ravi,

"When processing a PUT request servers return status 204 (No Content) to indicate success, no response body is needed"

Sreehari

Re: Update(Put) No Response Data

former_member203215 — Thu, 25 Sep 2014 12:13:37 GMT

Thanks for your reply.

But while updating in crm we get return message like email is not provide etc...

so I want to display messsage which returned from function modulee....

Re: Update(Put) No Response Data

SyambabuAllu — Thu, 25 Sep 2014 12:19:52 GMT

Hi Ravi,

If you want to display messages in Update and Delete operations, you can use below code. the messages you can see in response headers.

DATA ls_header TYPE ihttpnvp.

IF lv_message IS NOT INITIAL.
ls_header-name = 'STATUS' .
ls_header-value = lv_message.
/iwbep/if_mgw_conv_srv_runtime~set_header( ls_header ).
else.
ls_header-name = 'STATUS' .
ls_header-value = 'FAIL'."lv_message.
/iwbep/if_mgw_conv_srv_runtime~set_header( ls_header ).

Thanks

Syam

Re: Update(Put) No Response Data

AshwinDutt — Thu, 25 Sep 2014 13:15:24 GMT

Hello

Successfull update will always shows 204 and no content is retuned.

So u need to raise an exception when ur update fails with the error messages.

When no error are encountered during update and if its success then u can decide update is successful based on 204 status.

U can also set ur custom messages as well like Syam suggested with appropriate success message returned by ur backend logic.

Regards

Ashwin

Re: Update(Put) No Response Data

kammaje_cis — Thu, 25 Sep 2014 14:47:05 GMT

Sending error messages (with return code 204) for an Update operation in Response Header is a workaround and not really OData compliant. You need to raise an exception if you need to get error messages as others suggested.

Re: Update(Put) No Response Data

sreehari_vpillai — Thu, 25 Sep 2014 14:51:02 GMT

Raise proper exceptions . Remember, OData is a protocol with defined rules . It does not support return data on success PUT. As a work around, you can manipulate it with POST operation . Wait a minute, do you really want to try that ? NO. Raise exceptions properly

Sree

Re: Update(Put) No Response Data

former_member203215 — Thu, 25 Sep 2014 15:27:53 GMT

Thanks All,

Can anybody please provide me a sample code how to raise an exception from the update method.

Re: Update(Put) No Response Data

sreehari_vpillai — Thu, 25 Sep 2014 15:30:54 GMT

Open the UPDATE_ENTITY method in *_DPC class. There you can find the "RAISE EXCEPTION" clause generated by sap. You can follow the same.

Sree

Re: Update(Put) No Response Data

kammaje_cis — Thu, 25 Sep 2014 16:16:58 GMT

Here it is.

/IWBEP/CX_MGW_BUSI_EXCEPTION - SAP NetWeaver Gateway Foundation (SAP_GWFND) - SAP Library

Re: Update(Put) No Response Data

AshwinDutt — Thu, 25 Sep 2014 16:21:18 GMT

Hello Ravi,

Please have a look at this :

Regards,

Ashwin