Pascal (Lazarus/Delphi)

Google People API - List the User's Contacts

See more Google People Examples

Gets a list of people in the user's contacts. Pascal (Lazarus/Delphi)

program ChilkatDemo;

// Demonstrates using the Chilkat Pascal wrapper via the C bridge DLL.
// Builds as a console application under Lazarus (FPC) or Delphi.

{$IFDEF FPC}
  {$MODE DELPHI}
{$ENDIF}
{$APPTYPE CONSOLE}

uses
  {$IFDEF UNIX}
  cthreads,
  {$ENDIF}
  SysUtils,
  CkDllLoader,
  Chilkat.Http,
  Chilkat.StringBuilder,
  Chilkat.JsonObject;

// ---------------------------------------------------------------------------

procedure RunDemo;
var
  success: Boolean;
  jsonToken: TJsonObject;
  http: THttp;
  sbResponseBody: TStringBuilder;
  json: TJsonObject;
  resourceName: string;
  etag: string;
  j: Integer;
  count_j: Integer;
  metadataPrimary: Boolean;
  metadataSourceType: string;
  metadataSourceId: string;
  displayName: string;
  familyName: string;
  givenName: string;
  displayNameLastFirst: string;
  unstructuredName: string;
  value: string;
  formattedValue: string;
  streetAddress: string;
  city: string;
  region: string;
  postalCode: string;
  country: string;
  countryCode: string;
  totalPeople: Integer;
  totalItems: Integer;
  i: Integer;
  count_i: Integer;

begin
  success := False;

  //  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 := TJsonObject.Create;
  success := jsonToken.LoadFile('qa_data/tokens/googlePeople.json');
  if (success <> True) then
    begin
      WriteLn('Failed to load googleContacts.json');
      Exit;
    end;

  http := THttp.Create;

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

  sbResponseBody := TStringBuilder.Create;
  success := http.QuickGetSb('https://people.googleapis.com/v1/people/me/connections?personFields=names,addresses,emailAddresses',sbResponseBody);
  if (success = False) then
    begin
      WriteLn(http.LastErrorText);
      WriteLn(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 := TJsonObject.Create;
  json.EmitCompact := False;
  json.Load(sbResponseBody.GetAsString());
  WriteLn(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;



  jsonToken.Free;
  http.Free;
  sbResponseBody.Free;
  json.Free;

end;

// ---------------------------------------------------------------------------

begin

  try
    RunDemo;
  except
    on E: Exception do
      WriteLn('Unhandled exception: ', E.ClassName, ': ', E.Message);
  end;

  WriteLn;
  {$IFDEF MSWINDOWS}
  WriteLn('Press Enter to exit...');
  ReadLn;
  {$ENDIF}
end.