(Delphi ActiveX) 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 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;
http: TChilkatHttp;
sbResponseBody: TChilkatStringBuilder;
json: TChilkatJsonObject;
resourceName: WideString;
etag: WideString;
j: Integer;
count_j: Integer;
metadataPrimary: Integer;
metadataSourceType: WideString;
metadataSourceId: WideString;
displayName: WideString;
familyName: WideString;
givenName: WideString;
displayNameLastFirst: WideString;
unstructuredName: WideString;
value: WideString;
formattedValue: WideString;
streetAddress: WideString;
city: WideString;
region: WideString;
postalCode: WideString;
country: WideString;
countryCode: WideString;
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 := TChilkatJsonObject.Create(Self);
success := jsonToken.LoadFile('qa_data/tokens/googlePeople.json');
if (success <> 1) then
  begin
    Memo1.Lines.Add('Failed to load googleContacts.json');
    Exit;
  end;

http := TChilkatHttp.Create(Self);

http.AuthToken := jsonToken.StringOf('access_token');

sbResponseBody := TChilkatStringBuilder.Create(Self);
success := http.QuickGetSb('https://people.googleapis.com/v1/people/me/connections?personFields=names,addresses,emailAddresses',sbResponseBody.ControlInterface);
if (success = 0) then
  begin
    Memo1.Lines.Add(http.LastErrorText);
    Memo1.Lines.Add(sbResponseBody.GetAsString());
    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 := TChilkatJsonObject.Create(Self);
json.EmitCompact := 0;
json.Load(sbResponseBody.GetAsString());
Memo1.Lines.Add(json.Emit());

totalPeople := json.IntOf('totalPeople');
totalItems := json.IntOf('totalItems');
i := 0;
count_i := json.SizeOfArray('connections');
while i < count_i do
  begin
    json.I := i;
    resourceName := json.StringOf('connections[i].resourceName');
    etag := json.StringOf('connections[i].etag');
    j := 0;
    count_j := json.SizeOfArray('connections[i].names');
    while j < count_j do
      begin
        json.J := j;
        metadataPrimary := json.BoolOf('connections[i].names[j].metadata.primary');
        metadataSourceType := json.StringOf('connections[i].names[j].metadata.source.type');
        metadataSourceId := json.StringOf('connections[i].names[j].metadata.source.id');
        displayName := json.StringOf('connections[i].names[j].displayName');
        familyName := json.StringOf('connections[i].names[j].familyName');
        givenName := json.StringOf('connections[i].names[j].givenName');
        displayNameLastFirst := json.StringOf('connections[i].names[j].displayNameLastFirst');
        unstructuredName := json.StringOf('connections[i].names[j].unstructuredName');
        j := j + 1;
      end;

    j := 0;
    count_j := json.SizeOfArray('connections[i].emailAddresses');
    while j < count_j do
      begin
        json.J := j;
        metadataPrimary := json.BoolOf('connections[i].emailAddresses[j].metadata.primary');
        metadataSourceType := json.StringOf('connections[i].emailAddresses[j].metadata.source.type');
        metadataSourceId := json.StringOf('connections[i].emailAddresses[j].metadata.source.id');
        value := json.StringOf('connections[i].emailAddresses[j].value');
        j := j + 1;
      end;

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

    i := i + 1;
  end;
end;