(Delphi ActiveX) Google Contacts - Adding/Updating a photo for a contact

Demonstrates how to upload a photo for a Google Contact.

Chilkat for Delphi Downloads Chilkat ActiveX DLL for Delphi Chilkat non-ActiveX DLL for Delphi * The examples here use the ActiveX DLL.

uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Chilkat_TLB;

...

procedure TForm1.Button1Click(Sender: TObject);
var
jsonToken: TChilkatJsonObject;
success: Integer;
gAuth: TChilkatAuthGoogle;
rest: TChilkatRest;
bAutoReconnect: Integer;
sbPath: TChilkatStringBuilder;
numReplacements: Integer;
pngData: TChilkatBinData;
sbResponseBody: TChilkatStringBuilder;

begin
// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

// --------------------------------------------------------------------------------------------------------
// Note: The code for setting up the Chilkat REST object and making the initial connection can be done once.
// Once connected, the REST object may be re-used for many REST API calls.
// (It's a good idea to put the connection setup code in a separate function/subroutine.)
// --------------------------------------------------------------------------------------------------------

// It is assumed we previously obtained an OAuth2 access token.
// This example loads the JSON access token file 
// saved by this example: Get Google Contacts OAuth2 Access Token

jsonToken := TChilkatJsonObject.Create(Self);
success := jsonToken.LoadFile('qa_data/tokens/googleContacts.json');
if (success <> 1) then
  begin
    Memo1.Lines.Add('Failed to load googleContacts.json');
    Exit;
  end;

gAuth := TChilkatAuthGoogle.Create(Self);
gAuth.AccessToken := jsonToken.StringOf('access_token');

rest := TChilkatRest.Create(Self);

// Connect using TLS.
bAutoReconnect := 1;
success := rest.Connect('www.google.com',443,1,bAutoReconnect);

// Provide the authentication credentials (i.e. the access token)
rest.SetAuthGoogle(gAuth.ControlInterface);

// ----------------------------------------------
// OK, the REST connection setup is completed..
// ----------------------------------------------

// To upload a photo for the contact, send the following:

// 	PUT /m8/feeds/photos/media/default/contactId
// 	If-match: Etag
// 	Content-Type: image/*
// 	...
// 	[Photo data bytes]

rest.AddHeader('GData-Version','3.0');
rest.AddHeader('If-Match','*');
rest.AddHeader('Content-Type','image/*');

sbPath := TChilkatStringBuilder.Create(Self);
sbPath.Append('/m8/feeds/photos/media/default/{contactId}');
// Upload a photo for the contact having contactId = "1ea2e4fe0ef24e09"
numReplacements := sbPath.Replace('{contactId}','1ea2e4fe0ef24e09');

// Let's get our photo data..
pngData := TChilkatBinData.Create(Self);
success := pngData.LoadFile('qa_data/png/dude.png');

sbResponseBody := TChilkatStringBuilder.Create(Self);
success := rest.FullRequestBd('PUT',sbPath.GetAsString(),pngData.ControlInterface,sbResponseBody.ControlInterface);
if (success <> 1) then
  begin
    Memo1.Lines.Add(rest.LastErrorText);
    Exit;
  end;

// A successful response will have a status code equal to 200.
if (rest.ResponseStatusCode <> 200) then
  begin
    Memo1.Lines.Add('response status code = ' + IntToStr(rest.ResponseStatusCode));
    Memo1.Lines.Add('response status text = ' + rest.ResponseStatusText);
    Memo1.Lines.Add('response header: ' + rest.ResponseHeader);
    Memo1.Lines.Add('response body: ' + sbResponseBody.GetAsString());
    Exit;
  end;

// If the 200 success response was received.
Memo1.Lines.Add('Response Body:');
Memo1.Lines.Add(sbResponseBody.GetAsString());
Memo1.Lines.Add('Success.');
end;