Simple HTTP Send / Receive does not Work

Former Member — Thu, 29 Mar 2012 14:59:51 GMT

Hello,

I am attempting to perform a simple HTTP Send/Receive using the SAP Interface IF_HTTP_CLIENT. For example to read a twitter feed.

I have no issues using a SICF entry for BSP pages such as http://www.mysystemxxx.com:8000/sap/bc/bsp/sap/z_http/z_simple_http.xml to create some simple XML data, so internet connectivity is established..However when using ABAP to call out to the internet, I get communication errors when I attempt to receive data back...the error message is:

communication_error( receive )

code: 400 message: ICM_HTTP_CONNECTION_FAILED

I attempted to use transaction SMICM (ICM monitor but cannot see any errors)...

Am I missing some setup and/or configuration to perform a call to the outside?

Thanks in advance for your reply..

Regards,

Steve

Sample HTTP program:

REPORT z_http_example.

DATA: my_client TYPE REF TO if_http_client.

DATA: host_sf       TYPE string VALUE 'http://search.twitter.com/search.atom?q=jazz',
      uri           TYPE string VALUE 'http://search.twitter.com/search.atom?q=jazz',
      service_str   TYPE string VALUE '8000',
      timeout       TYPE i VALUE 10,
      v_subrc       TYPE sysubrc,
      errortext     TYPE string. "used for error handling

START-OF-SELECTION.

CALL METHOD cl_http_client=>create
    EXPORTING
      host               = host_sf
      service            = service_str
    IMPORTING
      client             = my_client
    EXCEPTIONS
      argument_not_found = 1
      internal_error     = 2
      plugin_not_active = 3
      OTHERS             = 4.

* set http method GET
CALL METHOD my_client->request->set_method(
if_http_request=>co_request_method_get ).

* set request uri (/<path>[?<querystring>])
cl_http_utility=>set_request_uri( request = my_client->request
uri = uri ).

* Send
CALL METHOD my_client->send
    EXPORTING
      timeout                    = timeout
    EXCEPTIONS
      http_communication_failure = 1
      http_invalid_state         = 2
      http_processing_failed     = 3
      OTHERS                     = 4.
IF sy-subrc <> 0.
    CALL METHOD my_client->get_last_error
      IMPORTING
        code    = v_subrc
        MESSAGE = errortext.
    WRITE: / 'communication_error( send )',
           / 'code: ', v_subrc, 'message: ', errortext.
    EXIT.
ENDIF.

* receive
CALL METHOD my_client->receive
    EXCEPTIONS
      http_communication_failure = 1
      http_invalid_state         = 2
      http_processing_failed     = 3
      OTHERS                     = 4.
IF sy-subrc <> 0.
    CALL METHOD my_client->get_last_error
      IMPORTING
        code    = v_subrc
        MESSAGE = errortext.
    WRITE: / 'communication_error( receive )',
           / 'code: ', v_subrc, 'message: ', errortext.
    EXIT.
ENDIF.

* close
CALL METHOD my_client->close
    EXCEPTIONS
      http_invalid_state = 1
      OTHERS             = 2.

END-OF-SELECTION.

write: /1 'HTTP Call Complete!'.

Re: Simple HTTP Send / Receive does not Work

jane_cruz — Sun, 13 Apr 2014 04:43:09 GMT

Hello,

When you use cl_http_utility=>set_request_uri

you need to pass proxy settings, if you dont want to do

you'll try remove this instruction.

Regards

topic Simple HTTP Send / Receive does not Work in Application Development and Automation Discussions

Simple HTTP Send / Receive does not Work

Re: Simple HTTP Send / Receive does not Work