(Delphi DLL) Google Contacts - Create New Contact

Demonstrates how to create a new contact for the Google Contacts API.

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

uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, StringBuilder, AuthGoogle, Xml, JsonObject, Rest;

...

procedure TForm1.Button1Click(Sender: TObject);
var
xml: HCkXml;
jsonToken: HCkJsonObject;
success: Boolean;
gAuth: HCkAuthGoogle;
rest: HCkRest;
bAutoReconnect: Boolean;
sbRequestBody: HCkStringBuilder;
sbResponseBody: HCkStringBuilder;

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

// First create a new contact XML.
xml := CkXml_Create();
CkXml_putTag(xml,'atom:entry');
CkXml_AddAttribute(xml,'xmlns:atom','http://www.w3.org/2005/Atom');
CkXml_AddAttribute(xml,'xmlns:gd','http://schemas.google.com/g/2005');
CkXml_UpdateAttrAt(xml,'atom:category',True,'scheme','http://schemas.google.com/g/2005#kind');
CkXml_UpdateAttrAt(xml,'atom:category',True,'term','http://schemas.google.com/contact/2008#contact');
CkXml_UpdateChildContent(xml,'gd:name|gd:givenName','Elizabeth');
CkXml_UpdateChildContent(xml,'gd:name|gd:familyName','Bennet');
CkXml_UpdateChildContent(xml,'gd:name|gd:fullName','Elizabeth Bennet');
CkXml_UpdateAttrAt(xml,'atom:content',True,'type','text');
CkXml_UpdateChildContent(xml,'atom:content','Notes');
CkXml_UpdateAttrAt(xml,'gd:email',True,'rel','http://schemas.google.com/g/2005#work');
CkXml_UpdateAttrAt(xml,'gd:email',True,'primary','true');
CkXml_UpdateAttrAt(xml,'gd:email',True,'address','liz@gmail.com');
CkXml_UpdateAttrAt(xml,'gd:email',True,'displayName','E. Bennet');
CkXml_UpdateAttrAt(xml,'gd:email',True,'rel','http://schemas.google.com/g/2005#home');
CkXml_UpdateAttrAt(xml,'gd:email',True,'address','liz@example.org');
CkXml_UpdateAttrAt(xml,'gd:phoneNumber',True,'rel','http://schemas.google.com/g/2005#work');
CkXml_UpdateAttrAt(xml,'gd:phoneNumber',True,'primary','true');
CkXml_UpdateChildContent(xml,'gd:phoneNumber','(206)555-1212');
CkXml_UpdateAttrAt(xml,'gd:phoneNumber',True,'rel','http://schemas.google.com/g/2005#home');
CkXml_UpdateChildContent(xml,'gd:phoneNumber','(206)555-1213');
CkXml_UpdateAttrAt(xml,'gd:im',True,'address','liz@gmail.com');
CkXml_UpdateAttrAt(xml,'gd:im',True,'protocol','http://schemas.google.com/g/2005#GOOGLE_TALK');
CkXml_UpdateAttrAt(xml,'gd:im',True,'primary','true');
CkXml_UpdateAttrAt(xml,'gd:im',True,'rel','http://schemas.google.com/g/2005#home');
CkXml_UpdateAttrAt(xml,'gd:structuredPostalAddress',True,'rel','http://schemas.google.com/g/2005#work');
CkXml_UpdateAttrAt(xml,'gd:structuredPostalAddress',True,'primary','true');
CkXml_UpdateChildContent(xml,'gd:structuredPostalAddress|gd:city','Mountain View');
CkXml_UpdateChildContent(xml,'gd:structuredPostalAddress|gd:street','1600 Amphitheatre Pkwy');
CkXml_UpdateChildContent(xml,'gd:structuredPostalAddress|gd:region','CA');
CkXml_UpdateChildContent(xml,'gd:structuredPostalAddress|gd:postcode','94043');
CkXml_UpdateChildContent(xml,'gd:structuredPostalAddress|gd:country','United States');
CkXml_UpdateChildContent(xml,'gd:structuredPostalAddress|gd:formattedAddress','1600 Amphitheatre Pkwy Mountain View');

Memo1.Lines.Add(CkXml__getXml(xml));

// Created the following XML:

// 	<?xml version="1.0" encoding="utf-8" ?>
// 	<atom:entry xmlns:atom="http://www.w3.org/2005/Atom" xmlns:gd="http://schemas.google.com/g/2005">
// 	    <atom:category scheme="http://schemas.google.com/g/2005#kind" term="http://schemas.google.com/contact/2008#contact" />
// 	    <gd:name>
// 	        <gd:givenName>Elizabeth</gd:givenName>
// 	        <gd:familyName>Bennet</gd:familyName>
// 	        <gd:fullName>Elizabeth Bennet</gd:fullName>
// 	    </gd:name>
// 	    <atom:content type="text">Notes</atom:content>
// 	    <gd:email primary="true" displayName="E. Bennet" rel="http://schemas.google.com/g/2005#home" address="liz@example.org" />
// 	    <gd:phoneNumber primary="true" rel="http://schemas.google.com/g/2005#home">(206)555-1213</gd:phoneNumber>
// 	    <gd:im address="liz@gmail.com" protocol="http://schemas.google.com/g/2005#GOOGLE_TALK" primary="true" rel="http://schemas.google.com/g/2005#home" />
// 	    <gd:structuredPostalAddress rel="http://schemas.google.com/g/2005#work" primary="true">
// 	        <gd:city>Mountain View</gd:city>
// 	        <gd:street>1600 Amphitheatre Pkwy</gd:street>
// 	        <gd:region>CA</gd:region>
// 	        <gd:postcode>94043</gd:postcode>
// 	        <gd:country>United States</gd:country>
// 	        <gd:formattedAddress>1600 Amphitheatre Pkwy Mountain View</gd:formattedAddress>
// 	    </gd:structuredPostalAddress>
// 	</atom:entry>

// --------------------------------------------------------------------------------------------------------
// 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 := CkJsonObject_Create();
success := CkJsonObject_LoadFile(jsonToken,'qa_data/tokens/googleContacts.json');
if (success <> True) then
  begin
    Memo1.Lines.Add('Failed to load googleContacts.json');
    Exit;
  end;

gAuth := CkAuthGoogle_Create();
CkAuthGoogle_putAccessToken(gAuth,CkJsonObject__stringOf(jsonToken,'access_token'));

rest := CkRest_Create();

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

// Provide the authentication credentials (i.e. the access token)
CkRest_SetAuthGoogle(rest,gAuth);

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

// To create a contact, we need to send the following:

// 	POST /m8/feeds/contacts/default/full
// 	Content-Type: application/atom+xml
// 	GData-Version: 3.0

CkRest_AddHeader(rest,'Content-Type','application/atom+xml');
CkRest_AddHeader(rest,'GData-Version','3.0');

sbRequestBody := CkStringBuilder_Create();
sbResponseBody := CkStringBuilder_Create();
CkXml_GetXmlSb(xml,sbRequestBody);
success := CkRest_FullRequestSb(rest,'POST','/m8/feeds/contacts/default/full',sbRequestBody,sbResponseBody);
if (success <> True) then
  begin
    Memo1.Lines.Add(CkRest__lastErrorText(rest));
    Exit;
  end;

// A successful response will have a status code equal to 201.
if (CkRest_getResponseStatusCode(rest) <> 201) then
  begin
    Memo1.Lines.Add('response status code = ' + IntToStr(CkRest_getResponseStatusCode(rest)));
    Memo1.Lines.Add('response status text = ' + CkRest__responseStatusText(rest));
    Memo1.Lines.Add('response header: ' + CkRest__responseHeader(rest));
    Memo1.Lines.Add('response body: ' + CkStringBuilder__getAsString(sbResponseBody));
    Exit;
  end;

// If the 201 response was received, then the contact was successfully created,
// and there is no response body.
Memo1.Lines.Add('Contact created.');

CkXml_Dispose(xml);
CkJsonObject_Dispose(jsonToken);
CkAuthGoogle_Dispose(gAuth);
CkRest_Dispose(rest);
CkStringBuilder_Dispose(sbRequestBody);
CkStringBuilder_Dispose(sbResponseBody);

end;