Exemplos de Lambda usando for SDK SAP ABAP - AWS SDKExemplos de código
Conceitos básicosAções

Há mais AWS SDK exemplos disponíveis no GitHub repositório AWS Doc SDK Examples.

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Exemplos de Lambda usando for SDK SAP ABAP

Os exemplos de código a seguir mostram como realizar ações e implementar cenários comuns usando o AWS SDK for SAP ABAP com o Lambda.

As noções básicas são exemplos de código que mostram como realizar as operações essenciais em um serviço.

Ações são trechos de código de programas maiores e devem ser executadas em contexto. Embora as ações mostrem como chamar funções de serviço individuais, é possível ver as ações no contexto em seus cenários relacionados.

Cada exemplo inclui um link para o código-fonte completo, onde você pode encontrar instruções sobre como configurar e executar o código no contexto.

Conceitos básicos

O exemplo de código a seguir mostra como:

  • Crie uma IAM função e uma função Lambda e, em seguida, faça o upload do código do manipulador.

  • Invocar essa função com um único parâmetro e receber resultados.

  • Atualizar o código de função e configurar usando uma variável de ambiente.

  • Invocar a função com novos parâmetros e receber resultados. Exibir o log de execução retornado.

  • Listar as funções para sua conta e limpar os recursos.

Para obter mais informações, consulte Criar uma função do Lambda no console.

SDKpara SAP ABAP
nota

Tem mais sobre GitHub. Encontre o exemplo completo e saiba como configurar e executar no Repositório de exemplos de código da AWS. 


    TRY.
        "Create an AWS Identity and Access Management (IAM) role that grants AWS Lambda permission to write to logs."
        DATA(lv_policy_document) = `{` &&
            `"Version":"2012-10-17",` &&
                  `"Statement": [` &&
                    `{` &&
                      `"Effect": "Allow",` &&
                      `"Action": [` &&
                        `"sts:AssumeRole"` &&
                      `],` &&
                      `"Principal": {` &&
                        `"Service": [` &&
                          `"lambda.amazonaws.com"` &&
                        `]` &&
                      `}` &&
                    `}` &&
                  `]` &&
                `}`.
        TRY.
            DATA(lo_create_role_output) =  lo_iam->createrole(
                    iv_rolename = iv_role_name
                    iv_assumerolepolicydocument = lv_policy_document
                    iv_description = 'Grant lambda permission to write to logs'
                ).
            MESSAGE 'IAM role created.' TYPE 'I'.
            WAIT UP TO 10 SECONDS.            " Make sure that the IAM role is ready for use. "
          CATCH /aws1/cx_iamentityalrdyexex.
            MESSAGE 'IAM role already exists.' TYPE 'E'.
          CATCH /aws1/cx_iaminvalidinputex.
            MESSAGE 'The request contains a non-valid parameter.' TYPE 'E'.
          CATCH /aws1/cx_iammalformedplydocex.
            MESSAGE 'Policy document in the request is malformed.' TYPE 'E'.
        ENDTRY.

        TRY.
            lo_iam->attachrolepolicy(
                iv_rolename  = iv_role_name
                iv_policyarn = 'arn:aws:iam::aws:policy/service-role/AWSLambdaBasicExecutionRole'
            ).
            MESSAGE 'Attached policy to the IAM role.' TYPE 'I'.
          CATCH /aws1/cx_iaminvalidinputex.
            MESSAGE 'The request contains a non-valid parameter.' TYPE 'E'.
          CATCH /aws1/cx_iamnosuchentityex.
            MESSAGE 'The requested resource entity does not exist.' TYPE 'E'.
          CATCH /aws1/cx_iamplynotattachableex.
            MESSAGE 'Service role policies can only be attached to the service-linked role for their service.' TYPE 'E'.
          CATCH /aws1/cx_iamunmodableentityex.
            MESSAGE 'Service that depends on the service-linked role is not modifiable.' TYPE 'E'.
        ENDTRY.

        " Create a Lambda function and upload handler code. "
        " Lambda function performs 'increment' action on a number. "
        TRY.
            lo_lmd->createfunction(
                 iv_functionname = iv_function_name
                 iv_runtime = `python3.9`
                 iv_role = lo_create_role_output->get_role( )->get_arn( )
                 iv_handler = iv_handler
                 io_code = io_initial_zip_file
                 iv_description = 'AWS Lambda code example'
             ).
            MESSAGE 'Lambda function created.' TYPE 'I'.
          CATCH /aws1/cx_lmdcodestorageexcdex.
            MESSAGE 'Maximum total code size per account exceeded.' TYPE 'E'.
          CATCH /aws1/cx_lmdinvparamvalueex.
            MESSAGE 'The request contains a non-valid parameter.' TYPE 'E'.
          CATCH /aws1/cx_lmdresourcenotfoundex.
            MESSAGE 'The requested resource does not exist.' TYPE 'E'.
        ENDTRY.

        " Verify the function is in Active state "
        WHILE lo_lmd->getfunction( iv_functionname = iv_function_name )->get_configuration( )->ask_state( ) <> 'Active'.
          IF sy-index = 10.
            EXIT.               " Maximum 10 seconds. "
          ENDIF.
          WAIT UP TO 1 SECONDS.
        ENDWHILE.

        "Invoke the function with a single parameter and get results."
        TRY.
            DATA(lv_json) = /aws1/cl_rt_util=>string_to_xstring(
              `{`  &&
                `"action": "increment",`  &&
                `"number": 10` &&
              `}`
            ).
            DATA(lo_initial_invoke_output) =  lo_lmd->invoke(
                       iv_functionname = iv_function_name
                       iv_payload = lv_json
                   ).
            ov_initial_invoke_payload = lo_initial_invoke_output->get_payload( ).           " ov_initial_invoke_payload is returned for testing purposes. "
            DATA(lo_writer_json) = cl_sxml_string_writer=>create( type = if_sxml=>co_xt_json ).
            CALL TRANSFORMATION id SOURCE XML ov_initial_invoke_payload RESULT XML lo_writer_json.
            DATA(lv_result) = cl_abap_codepage=>convert_from( lo_writer_json->get_output( ) ).
            MESSAGE 'Lambda function invoked.' TYPE 'I'.
          CATCH /aws1/cx_lmdinvparamvalueex.
            MESSAGE 'The request contains a non-valid parameter.' TYPE 'E'.
          CATCH /aws1/cx_lmdinvrequestcontex.
            MESSAGE 'Unable to parse request body as JSON.' TYPE 'E'.
          CATCH /aws1/cx_lmdresourcenotfoundex.
            MESSAGE 'The requested resource does not exist.' TYPE 'E'.
          CATCH /aws1/cx_lmdunsuppedmediatyp00.
            MESSAGE 'Invoke request body does not have JSON as its content type.' TYPE 'E'.
        ENDTRY.

        " Update the function code and configure its Lambda environment with an environment variable. "
        " Lambda function is updated to perform 'decrement' action also. "
        TRY.
            lo_lmd->updatefunctioncode(
                  iv_functionname = iv_function_name
                  iv_zipfile = io_updated_zip_file
              ).
            WAIT UP TO 10 SECONDS.            " Make sure that the update is completed. "
            MESSAGE 'Lambda function code updated.' TYPE 'I'.
          CATCH /aws1/cx_lmdcodestorageexcdex.
            MESSAGE 'Maximum total code size per account exceeded.' TYPE 'E'.
          CATCH /aws1/cx_lmdinvparamvalueex.
            MESSAGE 'The request contains a non-valid parameter.' TYPE 'E'.
          CATCH /aws1/cx_lmdresourcenotfoundex.
            MESSAGE 'The requested resource does not exist.' TYPE 'E'.
        ENDTRY.

        TRY.
            DATA lt_variables TYPE /aws1/cl_lmdenvironmentvaria00=>tt_environmentvariables.
            DATA ls_variable LIKE LINE OF lt_variables.
            ls_variable-key = 'LOG_LEVEL'.
            ls_variable-value = NEW /aws1/cl_lmdenvironmentvaria00( iv_value = 'info' ).
            INSERT ls_variable INTO TABLE lt_variables.

            lo_lmd->updatefunctionconfiguration(
                  iv_functionname = iv_function_name
                  io_environment = NEW /aws1/cl_lmdenvironment( it_variables = lt_variables )
              ).
            WAIT UP TO 10 SECONDS.            " Make sure that the update is completed. "
            MESSAGE 'Lambda function configuration/settings updated.' TYPE 'I'.
          CATCH /aws1/cx_lmdinvparamvalueex.
            MESSAGE 'The request contains a non-valid parameter.' TYPE 'E'.
          CATCH /aws1/cx_lmdresourceconflictex.
            MESSAGE 'Resource already exists or another operation is in progress.' TYPE 'E'.
          CATCH /aws1/cx_lmdresourcenotfoundex.
            MESSAGE 'The requested resource does not exist.' TYPE 'E'.
        ENDTRY.

        "Invoke the function with new parameters and get results. Display the execution log that's returned from the invocation."
        TRY.
            lv_json = /aws1/cl_rt_util=>string_to_xstring(
              `{`  &&
                `"action": "decrement",`  &&
                `"number": 10` &&
              `}`
            ).
            DATA(lo_updated_invoke_output) =  lo_lmd->invoke(
                       iv_functionname = iv_function_name
                       iv_payload = lv_json
                   ).
            ov_updated_invoke_payload = lo_updated_invoke_output->get_payload( ).           " ov_updated_invoke_payload is returned for testing purposes. "
            lo_writer_json = cl_sxml_string_writer=>create( type = if_sxml=>co_xt_json ).
            CALL TRANSFORMATION id SOURCE XML ov_updated_invoke_payload RESULT XML lo_writer_json.
            lv_result = cl_abap_codepage=>convert_from( lo_writer_json->get_output( ) ).
            MESSAGE 'Lambda function invoked.' TYPE 'I'.
          CATCH /aws1/cx_lmdinvparamvalueex.
            MESSAGE 'The request contains a non-valid parameter.' TYPE 'E'.
          CATCH /aws1/cx_lmdinvrequestcontex.
            MESSAGE 'Unable to parse request body as JSON.' TYPE 'E'.
          CATCH /aws1/cx_lmdresourcenotfoundex.
            MESSAGE 'The requested resource does not exist.' TYPE 'E'.
          CATCH /aws1/cx_lmdunsuppedmediatyp00.
            MESSAGE 'Invoke request body does not have JSON as its content type.' TYPE 'E'.
        ENDTRY.

        " List the functions for your account. "
        TRY.
            DATA(lo_list_output) = lo_lmd->listfunctions( ).
            DATA(lt_functions) = lo_list_output->get_functions( ).
            MESSAGE 'Retrieved list of Lambda functions.' TYPE 'I'.
          CATCH /aws1/cx_lmdinvparamvalueex.
            MESSAGE 'The request contains a non-valid parameter.' TYPE 'E'.
        ENDTRY.

        " Delete the Lambda function. "
        TRY.
            lo_lmd->deletefunction( iv_functionname = iv_function_name ).
            MESSAGE 'Lambda function deleted.' TYPE 'I'.
          CATCH /aws1/cx_lmdinvparamvalueex.
            MESSAGE 'The request contains a non-valid parameter.' TYPE 'E'.
          CATCH /aws1/cx_lmdresourcenotfoundex.
            MESSAGE 'The requested resource does not exist.' TYPE 'E'.
        ENDTRY.

        " Detach role policy. "
        TRY.
            lo_iam->detachrolepolicy(
                iv_rolename  = iv_role_name
                iv_policyarn = 'arn:aws:iam::aws:policy/service-role/AWSLambdaBasicExecutionRole'
            ).
            MESSAGE 'Detached policy from the IAM role.' TYPE 'I'.
          CATCH /aws1/cx_iaminvalidinputex.
            MESSAGE 'The request contains a non-valid parameter.' TYPE 'E'.
          CATCH /aws1/cx_iamnosuchentityex.
            MESSAGE 'The requested resource entity does not exist.' TYPE 'E'.
          CATCH /aws1/cx_iamplynotattachableex.
            MESSAGE 'Service role policies can only be attached to the service-linked role for their service.' TYPE 'E'.
          CATCH /aws1/cx_iamunmodableentityex.
            MESSAGE 'Service that depends on the service-linked role is not modifiable.' TYPE 'E'.
        ENDTRY.

        " Delete the IAM role. "
        TRY.
            lo_iam->deleterole( iv_rolename = iv_role_name ).
            MESSAGE 'IAM role deleted.' TYPE 'I'.
          CATCH /aws1/cx_iamnosuchentityex.
            MESSAGE 'The requested resource entity does not exist.' TYPE 'E'.
          CATCH /aws1/cx_iamunmodableentityex.
            MESSAGE 'Service that depends on the service-linked role is not modifiable.' TYPE 'E'.
        ENDTRY.

      CATCH /aws1/cx_rt_service_generic INTO lo_exception.
        DATA(lv_error) = lo_exception->get_longtext( ).
        MESSAGE lv_error TYPE 'E'.
    ENDTRY.

Ações

O código de exemplo a seguir mostra como usar CreateFunction.

SDKpara SAP ABAP
nota

Tem mais sobre GitHub. Encontre o exemplo completo e saiba como configurar e executar no Repositório de exemplos de código da AWS. 

    TRY.
        lo_lmd->createfunction(
            iv_functionname = iv_function_name
            iv_runtime = `python3.9`
            iv_role = iv_role_arn
            iv_handler = iv_handler
            io_code = io_zip_file
            iv_description = 'AWS Lambda code example'
        ).
        MESSAGE 'Lambda function created.' TYPE 'I'.
      CATCH /aws1/cx_lmdcodesigningcfgno00.
        MESSAGE 'Code signing configuration does not exist.' TYPE 'E'.
      CATCH /aws1/cx_lmdcodestorageexcdex.
        MESSAGE 'Maximum total code size per account exceeded.' TYPE 'E'.
      CATCH /aws1/cx_lmdcodeverification00.
        MESSAGE 'Code signature failed one or more validation checks for signature mismatch or expiration.' TYPE 'E'.
      CATCH /aws1/cx_lmdinvalidcodesigex.
        MESSAGE 'Code signature failed the integrity check.' TYPE 'E'.
      CATCH /aws1/cx_lmdinvparamvalueex.
        MESSAGE 'The request contains a non-valid parameter.' TYPE 'E'.
      CATCH /aws1/cx_lmdresourceconflictex.
        MESSAGE 'Resource already exists or another operation is in progress.' TYPE 'E'.
      CATCH /aws1/cx_lmdresourcenotfoundex.
        MESSAGE 'The requested resource does not exist.' TYPE 'E'.
      CATCH /aws1/cx_lmdserviceexception.
        MESSAGE 'An internal problem was encountered by the AWS Lambda service.' TYPE 'E'.
      CATCH /aws1/cx_lmdtoomanyrequestsex.
        MESSAGE 'The maximum request throughput was reached.' TYPE 'E'.
    ENDTRY.

O código de exemplo a seguir mostra como usar DeleteFunction.

SDKpara SAP ABAP
nota

Tem mais sobre GitHub. Encontre o exemplo completo e saiba como configurar e executar no Repositório de exemplos de código da AWS. 

    TRY.
        lo_lmd->deletefunction( iv_functionname = iv_function_name ).
        MESSAGE 'Lambda function deleted.' TYPE 'I'.
      CATCH /aws1/cx_lmdinvparamvalueex.
        MESSAGE 'The request contains a non-valid parameter.' TYPE 'E'.
      CATCH /aws1/cx_lmdresourceconflictex.
        MESSAGE 'Resource already exists or another operation is in progress.' TYPE 'E'.
      CATCH /aws1/cx_lmdresourcenotfoundex.
        MESSAGE 'The requested resource does not exist.' TYPE 'E'.
      CATCH /aws1/cx_lmdserviceexception.
        MESSAGE 'An internal problem was encountered by the AWS Lambda service.' TYPE 'E'.
      CATCH /aws1/cx_lmdtoomanyrequestsex.
        MESSAGE 'The maximum request throughput was reached.' TYPE 'E'.
    ENDTRY.

O código de exemplo a seguir mostra como usar GetFunction.

SDKpara SAP ABAP
nota

Tem mais sobre GitHub. Encontre o exemplo completo e saiba como configurar e executar no Repositório de exemplos de código da AWS. 

    TRY.
        oo_result =  lo_lmd->getfunction( iv_functionname = iv_function_name ).       " oo_result is returned for testing purposes. "
        MESSAGE 'Lambda function information retrieved.' TYPE 'I'.
      CATCH /aws1/cx_lmdinvparamvalueex.
        MESSAGE 'The request contains a non-valid parameter.' TYPE 'E'.
      CATCH /aws1/cx_lmdserviceexception.
        MESSAGE 'An internal problem was encountered by the AWS Lambda service.' TYPE 'E'.
      CATCH /aws1/cx_lmdtoomanyrequestsex.
        MESSAGE 'The maximum request throughput was reached.' TYPE 'E'.
    ENDTRY.

  • Para API obter detalhes, consulte GetFunction AWSSDKpara SAP ABAP API referência.

O código de exemplo a seguir mostra como usar Invoke.

SDKpara SAP ABAP
nota

Tem mais sobre GitHub. Encontre o exemplo completo e saiba como configurar e executar no Repositório de exemplos de código da AWS. 

    TRY.
        DATA(lv_json) = /aws1/cl_rt_util=>string_to_xstring(
          `{`  &&
            `"action": "increment",`  &&
            `"number": 10` &&
          `}`
        ).
        oo_result =  lo_lmd->invoke(                  " oo_result is returned for testing purposes. "
                 iv_functionname = iv_function_name
                 iv_payload = lv_json
             ).
        MESSAGE 'Lambda function invoked.' TYPE 'I'.
      CATCH /aws1/cx_lmdinvparamvalueex.
        MESSAGE 'The request contains a non-valid parameter.' TYPE 'E'.
      CATCH /aws1/cx_lmdinvrequestcontex.
        MESSAGE 'Unable to parse request body as JSON.' TYPE 'E'.
      CATCH /aws1/cx_lmdinvalidzipfileex.
        MESSAGE 'The deployment package could not be unzipped.' TYPE 'E'.
      CATCH /aws1/cx_lmdrequesttoolargeex.
        MESSAGE 'Invoke request body JSON input limit was exceeded by the request payload.' TYPE 'E'.
      CATCH /aws1/cx_lmdresourceconflictex.
        MESSAGE 'Resource already exists or another operation is in progress.' TYPE 'E'.
      CATCH /aws1/cx_lmdresourcenotfoundex.
        MESSAGE 'The requested resource does not exist.' TYPE 'E'.
      CATCH /aws1/cx_lmdserviceexception.
        MESSAGE 'An internal problem was encountered by the AWS Lambda service.' TYPE 'E'.
      CATCH /aws1/cx_lmdtoomanyrequestsex.
        MESSAGE 'The maximum request throughput was reached.' TYPE 'E'.
      CATCH /aws1/cx_lmdunsuppedmediatyp00.
        MESSAGE 'Invoke request body does not have JSON as its content type.' TYPE 'E'.
    ENDTRY.

  • Para API obter detalhes, consulte Invoke in AWS SDKpara SAP ABAP API referência.

O código de exemplo a seguir mostra como usar ListFunctions.

SDKpara SAP ABAP
nota

Tem mais sobre GitHub. Encontre o exemplo completo e saiba como configurar e executar no Repositório de exemplos de código da AWS. 

    TRY.
        oo_result =  lo_lmd->listfunctions( ).       " oo_result is returned for testing purposes. "
        DATA(lt_functions) = oo_result->get_functions( ).
        MESSAGE 'Retrieved list of Lambda functions.' TYPE 'I'.
      CATCH /aws1/cx_lmdinvparamvalueex.
        MESSAGE 'The request contains a non-valid parameter.' TYPE 'E'.
      CATCH /aws1/cx_lmdserviceexception.
        MESSAGE 'An internal problem was encountered by the AWS Lambda service.' TYPE 'E'.
      CATCH /aws1/cx_lmdtoomanyrequestsex.
        MESSAGE 'The maximum request throughput was reached.' TYPE 'E'.
    ENDTRY.

  • Para API obter detalhes, consulte ListFunctions AWSSDKpara SAP ABAP API referência.

O código de exemplo a seguir mostra como usar UpdateFunctionCode.

SDKpara SAP ABAP
nota

Tem mais sobre GitHub. Encontre o exemplo completo e saiba como configurar e executar no Repositório de exemplos de código da AWS. 

    TRY.
        oo_result = lo_lmd->updatefunctioncode(     " oo_result is returned for testing purposes. "
              iv_functionname = iv_function_name
              iv_zipfile = io_zip_file
          ).

        MESSAGE 'Lambda function code updated.' TYPE 'I'.
      CATCH /aws1/cx_lmdcodesigningcfgno00.
        MESSAGE 'Code signing configuration does not exist.' TYPE 'E'.
      CATCH /aws1/cx_lmdcodestorageexcdex.
        MESSAGE 'Maximum total code size per account exceeded.' TYPE 'E'.
      CATCH /aws1/cx_lmdcodeverification00.
        MESSAGE 'Code signature failed one or more validation checks for signature mismatch or expiration.' TYPE 'E'.
      CATCH /aws1/cx_lmdinvalidcodesigex.
        MESSAGE 'Code signature failed the integrity check.' TYPE 'E'.
      CATCH /aws1/cx_lmdinvparamvalueex.
        MESSAGE 'The request contains a non-valid parameter.' TYPE 'E'.
      CATCH /aws1/cx_lmdresourceconflictex.
        MESSAGE 'Resource already exists or another operation is in progress.' TYPE 'E'.
      CATCH /aws1/cx_lmdresourcenotfoundex.
        MESSAGE 'The requested resource does not exist.' TYPE 'E'.
      CATCH /aws1/cx_lmdserviceexception.
        MESSAGE 'An internal problem was encountered by the AWS Lambda service.' TYPE 'E'.
      CATCH /aws1/cx_lmdtoomanyrequestsex.
        MESSAGE 'The maximum request throughput was reached.' TYPE 'E'.
    ENDTRY.

O código de exemplo a seguir mostra como usar UpdateFunctionConfiguration.

SDKpara SAP ABAP
nota

Tem mais sobre GitHub. Encontre o exemplo completo e saiba como configurar e executar no Repositório de exemplos de código da AWS. 

    TRY.
        oo_result = lo_lmd->updatefunctionconfiguration(     " oo_result is returned for testing purposes. "
              iv_functionname = iv_function_name
              iv_runtime = iv_runtime
              iv_description  = 'Updated Lambda function'
              iv_memorysize  = iv_memory_size
          ).

        MESSAGE 'Lambda function configuration/settings updated.' TYPE 'I'.
      CATCH /aws1/cx_lmdcodesigningcfgno00.
        MESSAGE 'Code signing configuration does not exist.' TYPE 'E'.
      CATCH /aws1/cx_lmdcodeverification00.
        MESSAGE 'Code signature failed one or more validation checks for signature mismatch or expiration.' TYPE 'E'.
      CATCH /aws1/cx_lmdinvalidcodesigex.
        MESSAGE 'Code signature failed the integrity check.' TYPE 'E'.
      CATCH /aws1/cx_lmdinvparamvalueex.
        MESSAGE 'The request contains a non-valid parameter.' TYPE 'E'.
      CATCH /aws1/cx_lmdresourceconflictex.
        MESSAGE 'Resource already exists or another operation is in progress.' TYPE 'E'.
      CATCH /aws1/cx_lmdresourcenotfoundex.
        MESSAGE 'The requested resource does not exist.' TYPE 'E'.
      CATCH /aws1/cx_lmdserviceexception.
        MESSAGE 'An internal problem was encountered by the AWS Lambda service.' TYPE 'E'.
      CATCH /aws1/cx_lmdtoomanyrequestsex.
        MESSAGE 'The maximum request throughput was reached.' TYPE 'E'.
    ENDTRY.