(Java) 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

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import com.chilkatsoft.*;

public class ChilkatExample {

  static {
    try {
        System.loadLibrary("chilkat");
    } catch (UnsatisfiedLinkError e) {
      System.err.println("Native code library failed to load.\n" + e);
      System.exit(1);
    }
  }

  public static void main(String argv[])
  {
    // 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

    CkJsonObject jsonToken = new CkJsonObject();
    boolean success = jsonToken.LoadFile("qa_data/tokens/googlePeople.json");
    if (success != true) {
        System.out.println("Failed to load googleContacts.json");
        return;
        }

    CkHttp http = new CkHttp();

    http.put_AuthToken(jsonToken.stringOf("access_token"));

    CkStringBuilder sbResponseBody = new CkStringBuilder();
    success = http.QuickGetSb("https://people.googleapis.com/v1/people/me/connections?personFields=names,addresses,emailAddresses",sbResponseBody);
    if (success == false) {
        System.out.println(http.lastErrorText());
        System.out.println(sbResponseBody.getAsString());
        return;
        }

    // 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
    // }

    CkJsonObject json = new CkJsonObject();
    json.put_EmitCompact(false);
    json.Load(sbResponseBody.getAsString());
    System.out.println(json.emit());

    String resourceName;
    String etag;
    int j;
    int count_j;
    boolean metadataPrimary;
    String 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;

    int totalPeople = json.IntOf("totalPeople");
    int totalItems = json.IntOf("totalItems");
    int i = 0;
    int count_i = json.SizeOfArray("connections");
    while (i < count_i) {
        json.put_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) {
            json.put_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;
            }

        j = 0;
        count_j = json.SizeOfArray("connections[i].emailAddresses");
        while (j < count_j) {
            json.put_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;
            }

        j = 0;
        count_j = json.SizeOfArray("connections[i].addresses");
        while (j < count_j) {
            json.put_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;
            }

        i = i+1;
        }
  }
}