(Delphi DLL) Google People API - List the User's Contacts

Gets a list of people in the user's contacts.

For more information, see https://developers.google.com/people/v1/contacts

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, Http, StringBuilder, JsonObject;

...

procedure TForm1.Button1Click(Sender: TObject);
var
jsonToken: HCkJsonObject;
success: Boolean;
http: HCkHttp;
sbResponseBody: HCkStringBuilder;
json: HCkJsonObject;
resourceName: PWideChar;
etag: PWideChar;
j: Integer;
count_j: Integer;
metadataPrimary: Boolean;
metadataSourceType: PWideChar;
metadataSourceId: PWideChar;
displayName: PWideChar;
familyName: PWideChar;
givenName: PWideChar;
displayNameLastFirst: PWideChar;
unstructuredName: PWideChar;
value: PWideChar;
formattedValue: PWideChar;
streetAddress: PWideChar;
city: PWideChar;
region: PWideChar;
postalCode: PWideChar;
country: PWideChar;
countryCode: PWideChar;
totalPeople: Integer;
totalItems: Integer;
i: Integer;
count_i: Integer;

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

// It is assumed we previously obtained an OAuth2 access token.
// This example loads the JSON access token file 

// originally obtained by this example: Get Google People API OAuth2 Access Token
// or refreshed by this example: Refresh Google People API OAuth2 Access Token

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

http := CkHttp_Create();

CkHttp_putAuthToken(http,CkJsonObject__stringOf(jsonToken,'access_token'));

sbResponseBody := CkStringBuilder_Create();
success := CkHttp_QuickGetSb(http,'https://people.googleapis.com/v1/people/me/connections?personFields=names,addresses,emailAddresses',sbResponseBody);
if (success = False) then
  begin
    Memo1.Lines.Add(CkHttp__lastErrorText(http));
    Memo1.Lines.Add(CkStringBuilder__getAsString(sbResponseBody));
    Exit;
  end;

// Sample JSON Response

// Use this online tool to generate parsing code from sample JSON: 
// Generate Parsing Code from JSON

// {
//   "connections": [
//     {
//       "resourceName": "people/c8871101035606120608",
//       "etag": "%EgkBAj0JQhBANy4aBAECBQciDERLSGdVTFNPbzNJPQ==",
//       "names": [
//         {
//           "metadata": {
//             "primary": true,
//             "source": {
//               "type": "CONTACT",
//               "id": "7b1c7b6409e718a0"
//             }
//           },
//           "displayName": "Chilkat Cloud",
//           "familyName": "Cloud",
//           "givenName": "Chilkat",
//           "displayNameLastFirst": "Cloud, Chilkat",
//           "unstructuredName": "Chilkat Cloud"
//         }
//       ],
//       "emailAddresses": [
//         {
//           "metadata": {
//             "primary": true,
//             "source": {
//               "type": "CONTACT",
//               "id": "7b1c7b6409e718a0"
//             }
//           },
//           "value": "support@***.com"
//         }
//       ]
//     },
//     {
//       "resourceName": "people/c7607335470312011517",
//       "etag": "%EgkBAj0JQhBANy4aBAECBQciDGZETUtHVTVMazI4PQ==",
//       "names": [
//         {
//           "metadata": {
//             "primary": true,
//             "source": {
//               "type": "CONTACT",
//               "id": "6992af4e0b2d36fd"
//             }
//           },
//           "displayName": "Matt Smith",
//           "familyName": "Smith",
//           "givenName": "Matt",
//           "displayNameLastFirst": "Smith, Matt",
//           "unstructuredName": "Matt Smith"
//         }
//       ],
//       "addresses": [
//         {
//           "metadata": {
//             "primary": true,
//             "source": {
//               "type": "CONTACT",
//               "id": "6992af4e0b2d36fd"
//             }
//           },
//           "formattedValue": "2222 E Foorest Ave\nWheaton, IL 60999\nUS",
//           "streetAddress": "2222 E Foorest Ave",
//           "city": "Wheaton",
//           "region": "IL",
//           "postalCode": "60999",
//           "country": "US",
//           "countryCode": "US"
//         }
//       ],
//       "emailAddresses": [
//         {
//           "metadata": {
//             "primary": true,
//             "source": {
//               "type": "CONTACT",
//               "id": "6992af4e0b2d36fd"
//             }
//           },
//           "value": "matt@***.com"
//         },
//         {
//           "metadata": {
//             "source": {
//               "type": "CONTACT",
//               "id": "6992af4e0b2d36fd"
//             }
//           },
//           "value": "admin@***.com"
//         }
//       ]
//     }
//   ],
//   "totalPeople": 2,
//   "totalItems": 2
// }

json := CkJsonObject_Create();
CkJsonObject_putEmitCompact(json,False);
CkJsonObject_Load(json,CkStringBuilder__getAsString(sbResponseBody));
Memo1.Lines.Add(CkJsonObject__emit(json));

totalPeople := CkJsonObject_IntOf(json,'totalPeople');
totalItems := CkJsonObject_IntOf(json,'totalItems');
i := 0;
count_i := CkJsonObject_SizeOfArray(json,'connections');
while i < count_i do
  begin
    CkJsonObject_putI(json,i);
    resourceName := CkJsonObject__stringOf(json,'connections[i].resourceName');
    etag := CkJsonObject__stringOf(json,'connections[i].etag');
    j := 0;
    count_j := CkJsonObject_SizeOfArray(json,'connections[i].names');
    while j < count_j do
      begin
        CkJsonObject_putJ(json,j);
        metadataPrimary := CkJsonObject_BoolOf(json,'connections[i].names[j].metadata.primary');
        metadataSourceType := CkJsonObject__stringOf(json,'connections[i].names[j].metadata.source.type');
        metadataSourceId := CkJsonObject__stringOf(json,'connections[i].names[j].metadata.source.id');
        displayName := CkJsonObject__stringOf(json,'connections[i].names[j].displayName');
        familyName := CkJsonObject__stringOf(json,'connections[i].names[j].familyName');
        givenName := CkJsonObject__stringOf(json,'connections[i].names[j].givenName');
        displayNameLastFirst := CkJsonObject__stringOf(json,'connections[i].names[j].displayNameLastFirst');
        unstructuredName := CkJsonObject__stringOf(json,'connections[i].names[j].unstructuredName');
        j := j + 1;
      end;

    j := 0;
    count_j := CkJsonObject_SizeOfArray(json,'connections[i].emailAddresses');
    while j < count_j do
      begin
        CkJsonObject_putJ(json,j);
        metadataPrimary := CkJsonObject_BoolOf(json,'connections[i].emailAddresses[j].metadata.primary');
        metadataSourceType := CkJsonObject__stringOf(json,'connections[i].emailAddresses[j].metadata.source.type');
        metadataSourceId := CkJsonObject__stringOf(json,'connections[i].emailAddresses[j].metadata.source.id');
        value := CkJsonObject__stringOf(json,'connections[i].emailAddresses[j].value');
        j := j + 1;
      end;

    j := 0;
    count_j := CkJsonObject_SizeOfArray(json,'connections[i].addresses');
    while j < count_j do
      begin
        CkJsonObject_putJ(json,j);
        metadataPrimary := CkJsonObject_BoolOf(json,'connections[i].addresses[j].metadata.primary');
        metadataSourceType := CkJsonObject__stringOf(json,'connections[i].addresses[j].metadata.source.type');
        metadataSourceId := CkJsonObject__stringOf(json,'connections[i].addresses[j].metadata.source.id');
        formattedValue := CkJsonObject__stringOf(json,'connections[i].addresses[j].formattedValue');
        streetAddress := CkJsonObject__stringOf(json,'connections[i].addresses[j].streetAddress');
        city := CkJsonObject__stringOf(json,'connections[i].addresses[j].city');
        region := CkJsonObject__stringOf(json,'connections[i].addresses[j].region');
        postalCode := CkJsonObject__stringOf(json,'connections[i].addresses[j].postalCode');
        country := CkJsonObject__stringOf(json,'connections[i].addresses[j].country');
        countryCode := CkJsonObject__stringOf(json,'connections[i].addresses[j].countryCode');
        j := j + 1;
      end;

    i := i + 1;
  end;

CkJsonObject_Dispose(jsonToken);
CkHttp_Dispose(http);
CkStringBuilder_Dispose(sbResponseBody);
CkJsonObject_Dispose(json);

end;