Re: Base 64 PDF Encode

[Daniel Gross <daniel@xxxxxxxx>]

Hi,

the SQLTYPE(CLOB:1000000) that you are using, is implemented as a data structure with 2 sub fields in RPG - LENGTH and DATA - so IMHO you have to code:

  Responses.Base64Doc_LENGTH = Base64_LEN;
  Responses.Base64Doc = %subst(Base64_DATA:1:Base64_LEN);

HTH and kind regards,
Daniel


> Am 23.05.2025 um 15:40 schrieb (WalzCraft) Jerry Forss <JForss@xxxxxxxxxxxxx>:
>
> Hi All
>
> First, Thank you to Marco to getting me to this point!
>
> I need to take a PDF on the IFS, convert it to a Base64 and return it back through a web service.
>
> I am getting the Base64 and looks correct but when it is sent back to the service it is adding weird characters to the beginning of the field.
> Variable length info?  The field is NOT defined as a variable length field.
>
> When converting back to a PDF it fails because of the garbage characters.
>
> What the H.....eck am I doing wrong?
>
> Relevant PRG code
>
> // ===================================================================================
> // Data Stuctures
> // ===================================================================================
>
> Dcl-DS Response              Qualified           Template  Inz;
> Base64Doc_LENGTH           Int(10);
> Base64Doc                  Char(1000000);
> End-Ds;
>
> // ===================================================================================
> // Input Parameters
> // ===================================================================================
>
> Dcl-pr WOMDocDspR;
> Envir                      Char(2);
> CustNo                     Packed(8 : 0);
> Order                      Char(7);
> DocSeq                     Packed(9 : 0);
> Responses                  LikeDS(Response);
> Fail                       Char(100);
> End-pr;
>
> Dcl-pi WOMDocDspR;
> Envir                      Char(2);
> CustNo                     Packed(8 : 0);
> Order                      Char(7);
> DocSeq                     Packed(9 : 0);
> Responses                  LikeDS(Response);
> Fail                       Char(100);
> End-pi;
>
> // ===================================================================================
> // Global Variables
> // ===================================================================================
>
> Dcl-S Base64                 SQLType(CLOB : 1000000);
> Dcl-S DocPath                VarChar(200);
>
> EXEC SQL SET OPTION COMMIT = *NONE;
>
>   exec Sql VALUES QSYS2.BASE64_ENCODE((SELECT LINE FROM TABLE(
>                   QSYS2.IFS_READ_BINARY(PATH_NAME => :DocPath ))))
>            INTO :Base64;
>
>   Responses.Base64Doc_LENGTH = %Len(%Trim(Base64));
>   Responses.Base64Doc = Base64;
>
> From debug
>
> EVAL Base64
> BASE64_LEN OF BASE64 = 278400
> BASE64_DATA OF BASE64 =
>         ....5...10...15...20...25...30...35...40...45...50...55...60
>    1   'JVBERi0xLjcgCiXi48/TIAoxIDAgb2JqIAo8PCAKL1R5cGUgL0NhdGFsb2cg'
>   61   'Ci9QYWdlcyAyIDAgUiAKL1BhZ2VNb2RlIC9Vc2VOb25lIAovVmlld2VyUHJl'
>  121   'ZmVyZW5jZXMgPDwgCi9GaXRXaW5kb3cgdHJ1ZSAKL1BhZ2VMYXlvdXQgL1Np'
>  181   'bmdsZVBhZ2UgCi9Ob25GdWxsU2NyZWVuUGFnZU1vZGUgL1VzZU5vbmUgCj4+'
>
> What is returned
>
> "RESPONSES": {
>       "BASE64DOC":"oe"mJVBERi0xLjcgCiXi48/TIAoxIDAgb2JqIAo8PCAKL1R5cGUgL0NhdGFsb2cgCi9QYWdlcyAyIDAgUiAKL1BhZ2VNb2RlIC9Vc2VOb25lIAovVmlld2VyUHJlZmVyZW5jZXMgPDwgCi9GaXRXaW5kb3cgdHJ1ZSAKL1BhZ2VMYXlvdXQgL1NpbmdsZVBhZ2UgCi9Ob25GdWxsU2NyZWVuUGFnZU1vZGUgL1VzZU5vbmUgCj4+IAo+PiAKZW5kb2JqIAo1IDAgb2JqIAo8PCAKL0xlbmd0aCAzMzMyIAovRmlsdGVyIFsgL0ZsYXRlRGVjb2RlIF0gCj4
>
>
>
>
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