SAP ABAP – String Encode & Decode BASE64

Encode String

  DATA: lv_xstring TYPE xstring.

  CALL FUNCTION 'SCMS_STRING_TO_XSTRING'
    EXPORTING
      text   = input_string
    IMPORTING
      buffer = lv_xstring
    EXCEPTIONS
      failed = 1
      OTHERS = 2.

  CALL FUNCTION 'SCMS_BASE64_ENCODE_STR'
    EXPORTING
      input  = lv_xstring
    IMPORTING
      output = output_encoded_string.

Decode String

  DATA: lv_xstring TYPE xstring,
        lv_len     TYPE i,
        lt_bin     TYPE solix_tab.

  CALL FUNCTION 'SCMS_BASE64_DECODE_STR'
    EXPORTING
      input  = input_encoded_string
    IMPORTING
      output = lv_xstring
    EXCEPTIONS
      failed = 1
      OTHERS = 2.

  CALL FUNCTION 'SCMS_XSTRING_TO_BINARY'
    EXPORTING
      buffer        = lv_xstring
    IMPORTING
      output_length = lv_len
    TABLES
      binary_tab    = lt_bin.

  CALL FUNCTION 'SCMS_BINARY_TO_STRING'
    EXPORTING
      input_length = lv_len
    IMPORTING
      text_buffer  = output_decoded_string
    TABLES
      binary_tab   = lt_bin
    EXCEPTIONS
      failed       = 1
      OTHERS       = 2.