Forum Discussion

anandjpr's avatar
anandjpr
Explorer | Level 3
5 years ago
Solved

Issue in getting content of PDF/Doc etc

We are consuming dropbox api from our Delphi App. We are facing issue in getting PDF from dropbox(Upload,delete is working fine).   Getting Blank PDF   Except text file i am facing i...
API
  • Greg-DB's avatar
    Greg-DB
    5 years ago

    Thanks! That does show the raw PDF data, indicating that the Dropbox API call itself did succeed and return the file data.

     

    That being the case, it looks like the issue here is with writing that data to the local filesystem. As that's not related to the Dropbox API itself, I'm afraid I can't offer much help with that. You'll need to debug that part of your code, such as the "SaveToFile" method. For instance, make sure you have the right local path and that you have the permissions needed to write to that path.

Greg-DB's avatar
Greg-DB
Icon for Dropbox Community Moderator rankDropbox Community Moderator
5 years ago

What about the rest of the response? What's in the headers and body?

anandjpr's avatar
anandjpr
Explorer | Level 3
5 years ago

Request Endpoint:

 https://content.dropboxapi.com/2/files/download

Request header: 

 Authorization  : Bearer <REDACTED>

 Dropbox-API-Arg : {"path":"/test/BankcardHTTPS.pdf"}

 

Please suggest why i am getting Blank PDF file. 

  • anandjpr's avatar
    anandjpr
    Explorer | Level 3
    5 years ago

    I am Sharing Sample Project code .

     

    Request you to please have a look and suggest what wrong happening there.

     

    Sample Code:

    procedure TForm6.FormCreate(Sender: TObject);
    var
    url:string;
    lParams: TStream;
    FStream: TStream;
    SaveDir,TempFile:AnsiString;
    MyText: TStringlist;
    req:string;
    response:AnsiString;
    Base64: string;

    Input: TStringStream;
    Output: TFileStream;

    begin
    try
    FStream := TStringStream.Create;
    MyText:= TStringlist.create();
    try

    IdHTTP1.Request.CustomHeaders.Values['Dropbox-API-Arg'] :='{"path":"/test/BankcardHTTPS.pdf"}';
    IdHTTP1.Request.CustomHeaders.Values['Authorization'] := 'Bearer <REDACTED>';
    response:=IdHTTP1.Post('https://content.dropboxapi.com/2/files/download',FStream);

    MyText.Add(response);
    MyText.SaveToFile('.\BankcardHTTPS.pdf');

    except
    on E: Exception do
    begin
    ShowMessage('Error: ' + E.Message);
    end;
    end;
    finally
    lParams.Free;
    MyText.Free;
    end;
    end;

    • anandjpr's avatar
      anandjpr
      Explorer | Level 3
      5 years ago

      Any Update.

      • Greg-DB's avatar
        Greg-DB
        Icon for Dropbox Community Moderator rankDropbox Community Moderator
        5 years ago

        This shows your request headers and code, but not the response headers or body. Can you inspect the response headers/body?

         

        Also, do not post your access token, since it enables access to your account. You should revoke it since you've posted it publicly.

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