Publicar tópicos

Este exemplo de código pode ser usado para publicar uma mensagem "Hello World!" a um tópico do Pub/Sub.

Para acessar uma coleção abrangente de exemplos de código do ABAP SDK for Google Cloud, acesse o repositório GoogleCloudPlatform/google-cloud-abap/abap-sdk /ZGOOG_SDK_DOCS_SAMPLES no GitHub.

Exemplo de código

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REPORT zr_publish_topics.

DATA:
  lv_p_projects_id TYPE string,
  lv_p_topics_id   TYPE string,
  ls_input         TYPE /goog/cl_pubsub_v1=>ty_023.

TRY.

* Open HTTP Connection
    DATA(lo_client) = NEW /goog/cl_pubsub_v1( iv_key_name = 'CLIENT_KEY' ).

* Populate relevant parameters
    " Derive project id from the client object
    lv_p_projects_id = lo_client->gv_project_id.
    " Name of the topic to which message will be sent.
    lv_p_topics_id   = 'SAMPLE_TOPIC'.

    "ls_input-messages contains a list of messages that will be published to the Topic.
    APPEND INITIAL LINE TO ls_input-messages ASSIGNING FIELD-SYMBOL(<ls_message>).
    IF <ls_message> IS ASSIGNED .
      "The message is sent as a base64 encoded string in the data field.
      <ls_message>-data     = cl_http_utility=>encode_base64( unencoded = 'Hello World!' ).
    ENDIF.

* Call API method
    CALL METHOD lo_client->publish_topics
      EXPORTING
        iv_p_projects_id = lv_p_projects_id
        iv_p_topics_id   = lv_p_topics_id
        is_input         = ls_input
      IMPORTING
*       ES_RAW           =
        es_output        = DATA(ls_output)
        ev_ret_code      = DATA(lv_ret_code)
        ev_err_text      = DATA(lv_err_text)
        es_err_resp      = DATA(ls_err_resp).

    IF /goog/cl_http_client=>is_success( lv_ret_code ).
      MESSAGE 'Message was successfully published to Pub/Sub!' TYPE 'S'.
    ELSE.
      MESSAGE lv_err_text TYPE 'E'.
    ENDIF.

* Close HTTP Connection
    lo_client->close( ).

  CATCH /goog/cx_sdk INTO DATA(lo_exception).
    MESSAGE lo_exception->get_text( ) TYPE 'E'.
ENDTRY.