topic Re: Update external service using POST method in Application Development and Automation Discussions

Update external service using POST method

ashok2021 — Thu, 04 Mar 2021 19:25:27 GMT

Hi,

I have a requirement where I need to post some data using an external RESTful service from ABAP with values. I have been provided the service name PLANNING_DATA_API_SRV which I have to call from a SAP SE38 program and pass some fixed values. Please let me know how to go about it as I have never done this before.

Thanks

Re: Update external service using POST method

former_member732858 — Fri, 05 Mar 2021 07:14:51 GMT

Hii Ashok,

Create a Report program and call the Below Class and Method, if the RFC connection is built in SM59 for the API then use CL_HTTP_CLIENT=>CREATE_BY_DESTINATION

Get the Url for PLANNING_DATA_API_SRV

DATA: lo_http_client TYPE REF TO if_http_client.

Use CL_HTTP_CLIENT to consume the OData service using the method "create_by_url"
cl_http_client=>create_by_url(
     EXPORTING
       url                = lv_service
     IMPORTING
       client             = lo_http_client
     EXCEPTIONS
       argument_not_found = 1
       plugin_not_active  = 2
       internal_error     = 3
       OTHERS             = 4 ).

**** Send the request
   lo_http_client->send(
     EXCEPTIONS
       http_communication_failure = 1
       http_invalid_state         = 2 ).

*** Receive the respose
  lo_http_client->receive(
     EXCEPTIONS
       http_communication_failure = 1
       http_invalid_state         = 2
       http_processing_failed     = 3 ).

*** Read the result 
  CLEAR lv_result .
   lv_result = lo_http_client->response->get_cdata( ).
 write: lv_result.<br>

Re: Update external service using POST method

KatiNonhebel — Fri, 05 Mar 2021 07:16:40 GMT

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Re: Update external service using POST method

ashok2021 — Fri, 05 Mar 2021 14:47:12 GMT

Hi Saif,

Thanks for the reply. I created a program. I used the GET and the POST methods for my program. In the GET part I had to get the CSRF token and the Transaction ID using cl_http_client=>create_by_destination and passing the RFC name. Next when using the POST method I used cl_http_client=>create_by_url, created the JSON file and passed the transaction ID and the CSRF token from the previous step. I get a HTTP 200 message but when I go to the destination system the data is not updated. Please assist.

Thanks,

Ashok

Re: Update external service using POST method

ashok2021 — Tue, 01 Jun 2021 16:05:05 GMT

The problem was solved. I had to get the Cookie values and the x-csrf-token using the GET method. Then use these along with the Transaction ID to post the data. I got a HTTP 201 message successfully.