topic CL_HTTP_CLIENT->request->set_data failed 400 if data >= 1024 bytes in Application Development and Automation Discussions

CL_HTTP_CLIENT->request->set_data failed 400 if data >= 1024 bytes

former_member875618 — Mon, 28 Aug 2023 16:30:00 GMT

Hello,

I`m using a POST request with a JSON throught CL_HTTP_CLIENT.

Faced the following situation:

When xstrlen( jsonx ) <= 1024

http_rc = 200. "OK"

When xstrlen( jsonx ) > 1024

http_rc = 400. "Incorrect data given"

Tried to send the same data not via SAP client - Result 200. "OK"

Instead of client->request->set_data I used client->request->set_сdata, the result is similar, as soon as the string size exceeds 1024 bytes, I get a 400 response.

icm/HTTP/max_request_size_KB - 102400

What could be the error, am I somehow filling in the data incorrectly?

Where can there be size limits for request data?

DATA: client TYPE REF TO if_http_client.

  cl_http_client=>create_by_destination( EXPORTING
     destination = 'z_test'
     IMPORTING
       client = client ).

  client->propertytype_logon_popup = if_http_client=>co_disabled.
  client->request->set_version( if_http_request=>co_protocol_version_1_1 ).
  client->request->set_method( if_http_request=>co_request_method_post ).
  client->request->set_header_field( name = 'Accept'        value = 'application/json' ).
  client->request->set_header_field( name = 'Content-Type'  value = 'application/json' ).
  client->request->set_header_field( name = 'Authorization' value = |Bearer TokenValue| ).

  DATA jsonx TYPE xstring.

  json = '{"someLongJSON....}'.
  
  jsonx = cl_abap_codepage=>convert_to(
           source = json
           codepage = 'UTF-8' ).

  DATA(json_lenx) = xstrlen( jsonx ).
  client->request->set_data( data = jsonx
                             offset = 0
                             length = json_lenx ).

*  DATA(get_jsonx) = client->request->get_cdata( ).

  CALL METHOD client->send
    EXCEPTIONS
      http_communication_failure = 1
      http_invalid_state         = 2
      http_processing_failed     = 3
      http_invalid_timeout       = 4
      OTHERS                     = 5.
  IF sy-subrc <> 0.
    RAISE connection_error.
  ENDIF.
  CALL METHOD client->receive
    EXCEPTIONS
      http_communication_failure = 1
      http_invalid_state         = 2
      http_processing_failed     = 3
      OTHERS                     = 4.
  IF sy-subrc = 0.
    DATA: http_rc TYPE sy-subrc.
    client->response->get_status( IMPORTING code = http_rc ).
    l_xml = client->response->get_cdata( ).
  ENDIF.
  client->close( ).

Re: CL_HTTP_CLIENT->request->set_data failed 400 if data >= 1024 bytes

AnnePetteroe — Mon, 28 Aug 2023 16:30:31 GMT

Hello Anton,

Thank you for visiting SAP Community to get answers to your questions. Since you're asking a question here for the first time, I recommend that you familiarize yourself with https://community.sap.com/resources/questions-and-answers, as it provides tips for preparing questions that draw responses from our members.

Feel free to take our Q&A tutorial at https://developers.sap.com/tutorials/community-qa.html as well, as that will also help you when preparing questions for the community.

By adding a picture to your profile you encourage your readers to respond.

Kind regards,
Anne

Re: CL_HTTP_CLIENT->request->set_data failed 400 if data >= 1024 bytes

turkaj — Tue, 29 Aug 2023 06:35:41 GMT

Hi Anton,

Increase the icm/HTTP/max_request_size_KB parameter to, for example, 1024000 and try again. As this parameter is defined as "dynamic", there is no need to restart the server.

Screenshot from transaction RZ11:

Regards
Jim

Re: CL_HTTP_CLIENT->request->set_data failed 400 if data >= 1024 bytes

Sandra_Rossi — Tue, 29 Aug 2023 08:19:19 GMT

You clearly don't execute the same request via ABAP and via "not SAP client", otherwise you'd obtain the same result.

Use SICF > Client Recording to compare the raw HTTP request.