Homelab, Linux & ABAP (~˘▾˘)~
 

[JavaScript] Download base64 encoded file within a browser

            const sBase64 = "JVBERi0xLjQKJcOkw7zDtsOfCjIgMCBvYmoKPDwvTGVuZ3....."
            const arrayBuffer = new Uint8Array([...window.atob(sBase64)].map(char => char.charCodeAt(0)))
            const fileLink = document.createElement('a')

            fileLink.href = window.URL.createObjectURL(new Blob([arrayBuffer]))
            fileLink.setAttribute('download', "example.pdf")
            document.body.appendChild(fileLink)
            fileLink.click()

Or use the npm package FileSaver.

import { saveAs } from "file-saver";

const sBase64 = "JVBERi0xLjQKJcOkw7zDtsOfCjIgMCBvYmoKPDwvTGVuZ3....."
const buffer = Buffer.from(sBase64, "base64") //Buffer is only available when using nodejs
saveAs(new Blob([buffer]), "example.pdf")

[ABAP] Download internal table as TXT or CSV

" ty_output and tt_output are just dummy types

DATA: l_output_line    TYPE ty_output,
      l_output_lines   TYPE tt_output,  
      l_csv_output     TYPE truxs_t_text_data,
      l_txt_output     TYPE TABLE OF string,

PARAMETERS: p_alv   RADIOBUTTON GROUP rb1 DEFAULT 'X' USER-COMMAND radio,
            p_csv   RADIOBUTTON GROUP rb1,
            p_flcsv TYPE rlgrap-filename DEFAULT 'c:\temp\file.csv',
            p_txt   RADIOBUTTON GROUP rb1,
            p_fltxt TYPE rlgrap-filename DEFAULT 'c:\temp\file.txt'.

" fill table l_output_lines with your data you want to export as txt or csv

  IF p_csv = abap_true.

    CALL FUNCTION 'SAP_CONVERT_TO_CSV_FORMAT'
      TABLES
        i_tab_sap_data       = l_output_lines
      CHANGING
        i_tab_converted_data = l_csv_output.

    TRY.
        cl_gui_frontend_services=>gui_download( EXPORTING filename = CONV #( p_flcsv )
                                                          filetype = 'ASC'
                                                CHANGING  data_tab = l_csv_output ).  
      CATCH cx_root INTO DATA(e_text).
        MESSAGE e_text->get_text( ) TYPE 'I'.
    ENDTRY.


  ELSEIF p_txt = abap_true.

    LOOP AT l_output_lines INTO l_output_line.
      CALL FUNCTION 'SO_STRUCT_TO_CHAR'
        EXPORTING
          ip_struct = l_output_line
        IMPORTING
          ep_string = l_string.
      APPEND l_string TO l_txt_output.
    ENDLOOP.

    TRY.
        cl_gui_frontend_services=>gui_download( EXPORTING filename = CONV #( p_fltxt )
                                                          filetype = 'ASC'
                                                CHANGING  data_tab = l_txt_output ). 
      CATCH cx_root INTO e_text.
        MESSAGE e_text->get_text( ) TYPE 'I'.
    ENDTRY.

  ENDIF.