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Authenticate with a Service Account for Google Sheets API with Java

I started with the Google Quick Start guide for Java for connecting to Google Sheets via their API (https://developers.google.com/sheets/api/quickstart/java). I am following their quick start tutorial as it is without any changes. However, instead of creating an OAuth client ID and downloading that JSON credentials file, I created a Service Account (because that's what it's going to be). However, the downloaded service account JSON file does not work with Google's Quick Start code :
import com.google.api.client.auth.oauth2.Credential;
import com.google.api.client.extensions.java6.auth.oauth2.AuthorizationCodeInstalledApp;
import com.google.api.client.extensions.jetty.auth.oauth2.LocalServerReceiver;
import com.google.api.client.googleapis.auth.oauth2.GoogleAuthorizationCodeFlow;
import com.google.api.client.googleapis.auth.oauth2.GoogleClientSecrets;
import com.google.api.client.googleapis.javanet.GoogleNetHttpTransport;
import com.google.api.client.http.javanet.NetHttpTransport;
import com.google.api.client.json.JsonFactory;
import com.google.api.client.json.gson.GsonFactory;
import com.google.api.client.util.store.FileDataStoreFactory;
import com.google.api.services.sheets.v4.Sheets;
import com.google.api.services.sheets.v4.SheetsScopes;
import com.google.api.services.sheets.v4.model.ValueRange;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.security.GeneralSecurityException;
import java.util.Collections;
import java.util.List;
public class SheetsQuickstart {
private static final String APPLICATION_NAME = "Google Sheets API Java Quickstart";
private static final JsonFactory JSON_FACTORY = GsonFactory.getDefaultInstance();
private static final String TOKENS_DIRECTORY_PATH = "tokens";
/**
* Global instance of the scopes required by this quickstart.
* If modifying these scopes, delete your previously saved tokens/ folder.
*/
private static final List<String> SCOPES = Collections.singletonList(SheetsScopes.SPREADSHEETS_READONLY);
private static final String CREDENTIALS_FILE_PATH = "/credentials.json";
/**
* Creates an authorized Credential object.
* #param HTTP_TRANSPORT The network HTTP Transport.
* #return An authorized Credential object.
* #throws IOException If the credentials.json file cannot be found.
*/
private static Credential getCredentials(final NetHttpTransport HTTP_TRANSPORT) throws IOException {
// Load client secrets.
InputStream in = SheetsQuickstart.class.getResourceAsStream(CREDENTIALS_FILE_PATH);
if (in == null) {
throw new FileNotFoundException("Resource not found: " + CREDENTIALS_FILE_PATH);
}
GoogleClientSecrets clientSecrets = GoogleClientSecrets.load(JSON_FACTORY, new InputStreamReader(in));
// Build flow and trigger user authorization request.
GoogleAuthorizationCodeFlow flow = new GoogleAuthorizationCodeFlow.Builder(
HTTP_TRANSPORT, JSON_FACTORY, clientSecrets, SCOPES)
.setDataStoreFactory(new FileDataStoreFactory(new java.io.File(TOKENS_DIRECTORY_PATH)))
.setAccessType("offline")
.build();
LocalServerReceiver receiver = new LocalServerReceiver.Builder().setPort(8888).build();
return new AuthorizationCodeInstalledApp(flow, receiver).authorize("user");
}
/**
* Prints the names and majors of students in a sample spreadsheet:
* https://docs.google.com/spreadsheets/d/1BxiMVs0XRA5nFMdKvBdBZjgmUUqptlbs74OgvE2upms/edit
*/
public static void main(String... args) throws IOException, GeneralSecurityException {
// Build a new authorized API client service.
final NetHttpTransport HTTP_TRANSPORT = GoogleNetHttpTransport.newTrustedTransport();
final String spreadsheetId = "1BxiMVs0XRA5nFMdKvBdBZjgmUUqptlbs74OgvE2upms";
final String range = "Class Data!A2:E";
Sheets service = new Sheets.Builder(HTTP_TRANSPORT, JSON_FACTORY, getCredentials(HTTP_TRANSPORT))
.setApplicationName(APPLICATION_NAME)
.build();
ValueRange response = service.spreadsheets().values()
.get(spreadsheetId, range)
.execute();
List<List<Object>> values = response.getValues();
if (values == null || values.isEmpty()) {
System.out.println("No data found.");
} else {
System.out.println("Name, Major");
for (List row : values) {
// Print columns A and E, which correspond to indices 0 and 4.
System.out.printf("%s, %s\n", row.get(0), row.get(4));
}
}
}
}
and it gives this exception:
Task :run FAILED
Exception in thread "main" java.lang.IllegalArgumentException
at com.google.common.base.Preconditions.checkArgument(Preconditions.java:131)
at com.google.api.client.util.Preconditions.checkArgument(Preconditions.java:35)
at com.google.api.client.googleapis.auth.oauth2.GoogleClientSecrets.getDetails(GoogleClientSecrets.java:80)
at com.google.api.client.googleapis.auth.oauth2.GoogleAuthorizationCodeFlow$Builder.(GoogleAuthorizationCodeFlow.java:211)
at SheetsQuickstart.getCredentials(SheetsQuickstart.java:50)
at SheetsQuickstart.main(SheetsQuickstart.java:68)
I have already given 'Edit' access to the service account email id given in the json file to my Google spreadsheet, but it still gives the same error (in fact I tried changing my file permissions to 'anyone with link' can edit, and have used the same google spreadsheet ID in the code). Some webpages suggested a deprecated GoogleCredential based solution. Is there a non-deprecated solution to the problem?

Exception in thread "main" java.lang.NoClassDefFoundError: org/mortbay/jetty/Handler

I am trying to run the tutorial google drive api test
package Tests;
import com.google.api.client.auth.oauth2.Credential;
import com.google.api.client.extensions.java6.auth.oauth2.AuthorizationCodeInstalledApp;
import com.google.api.client.extensions.jetty.auth.oauth2.LocalServerReceiver;
import com.google.api.client.googleapis.auth.oauth2.GoogleAuthorizationCodeFlow;
import com.google.api.client.googleapis.auth.oauth2.GoogleClientSecrets;
import com.google.api.client.googleapis.javanet.GoogleNetHttpTransport;
import com.google.api.client.http.javanet.NetHttpTransport;
import com.google.api.client.json.JsonFactory;
import com.google.api.client.json.jackson2.JacksonFactory;
import com.google.api.client.util.store.FileDataStoreFactory;
import com.google.api.services.drive.Drive;
import com.google.api.services.drive.DriveScopes;
import com.google.api.services.drive.model.File;
import com.google.api.services.drive.model.FileList;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.security.GeneralSecurityException;
import java.util.Collections;
import java.util.List;
public class DriveQuickstart {
private static final String APPLICATION_NAME = "Google Drive API Java Quickstart";
private static final JsonFactory JSON_FACTORY = JacksonFactory.getDefaultInstance();
private static final String TOKENS_DIRECTORY_PATH = "tokens";
/**
* Global instance of the scopes required by this quickstart.
* If modifying these scopes, delete your previously saved tokens/ folder.
*/
private static final List<String> SCOPES = Collections.singletonList(DriveScopes.DRIVE_METADATA_READONLY);
private static final String CREDENTIALS_FILE_PATH = "credentials.json";
/**
* Creates an authorized Credential object.
* #param HTTP_TRANSPORT The network HTTP Transport.
* #return An authorized Credential object.
* #throws IOException If the credentials.json file cannot be found.
*/
private static Credential getCredentials(final NetHttpTransport HTTP_TRANSPORT) throws IOException {
// Load client secrets.
InputStream in = DriveQuickstart.class.getResourceAsStream(CREDENTIALS_FILE_PATH);
if (in == null) {
throw new FileNotFoundException("Resource not found: " + CREDENTIALS_FILE_PATH);
}
GoogleClientSecrets clientSecrets = GoogleClientSecrets.load(JSON_FACTORY, new InputStreamReader(in));
// Build flow and trigger user authorization request.
GoogleAuthorizationCodeFlow flow = new GoogleAuthorizationCodeFlow.Builder(
HTTP_TRANSPORT, JSON_FACTORY, clientSecrets, SCOPES)
.setDataStoreFactory(new FileDataStoreFactory(new java.io.File(TOKENS_DIRECTORY_PATH)))
.setAccessType("offline")
.build();
LocalServerReceiver receiver = new LocalServerReceiver.Builder().setPort(8888).build();
return new AuthorizationCodeInstalledApp(flow, receiver).authorize("user");
}
public static void main(String... args) throws IOException, GeneralSecurityException {
// Build a new authorized API client service.
final NetHttpTransport HTTP_TRANSPORT = GoogleNetHttpTransport.newTrustedTransport();
Drive service = new Drive.Builder(HTTP_TRANSPORT, JSON_FACTORY, getCredentials(HTTP_TRANSPORT))
.setApplicationName(APPLICATION_NAME)
.build();
// Print the names and IDs for up to 10 files.
FileList result = service.files().list()
.setPageSize(10)
.setFields("nextPageToken, files(id, name)")
.execute();
List<File> files = result.getFiles();
if (files == null || files.isEmpty()) {
System.out.println("No files found.");
} else {
System.out.println("Files:");
for (File file : files) {
System.out.printf("%s (%s)\n", file.getName(), file.getId());
}
}
}
}
I have almost all jars mentioned and I have downloaded the config.json file. However I get the following error
WARNING: unable to change permissions for owner: C:\Users\aswat\git\bionovaQAnew\tokens
Exception in thread "main" java.lang.NoClassDefFoundError: org/mortbay/jetty/Handler
at com.google.api.client.extensions.jetty.auth.oauth2.LocalServerReceiver$Builder.build(LocalServerReceiver.java:205)
at Tests.DriveQuickstart.getCredentials(DriveQuickstart.java:57)
at Tests.DriveQuickstart.main(DriveQuickstart.java:64)
Caused by: java.lang.ClassNotFoundException: org.mortbay.jetty.Handler
at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:582)
at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
... 3 more
I have tried out multiple answers mentioned in stackoverflow.com/questions/50687434/error-running-spark-main-class-exception-in-thread-thread-0-java-lang-noclas, but it doesnt help me. I have attached my buildpath dependencies as well. Please let me know what the issue is.
I use Ant and eclipse.

After many trials what worked for me was:
Added guava-11.0.2.jar
Removed google api client json 1 2 3 alpha.jar
Re downloaded the credential.json
Started a new project with just the required jars in resource file as shown attached

How do you insert a single row into Google sheets using Sheets APIv4 Java

If I want to insert a row into Google sheets using Java at a specified index, then write to that row, how would I go about that?

I was able to figure this one out after lots of googling, some struggling and adapting another answer.
Note: You can generate your own credentials.json. This goes in your "resources" folder in most IDEs.
Here's the code that I used, in full – the relevant method that you will need is the insertRow method below, which is invoked from writeTest Under normal circumstances I would just post the method in question, but the "quickstart" in the sheets API is definitely lacking so here's the full source:
Class & Imports
import com.google.api.client.auth.oauth2.Credential;
import com.google.api.client.extensions.java6.auth.oauth2.AuthorizationCodeInstalledApp;
import com.google.api.client.extensions.jetty.auth.oauth2.LocalServerReceiver;
import com.google.api.client.googleapis.auth.oauth2.GoogleAuthorizationCodeFlow;
import com.google.api.client.googleapis.auth.oauth2.GoogleClientSecrets;
import com.google.api.client.googleapis.javanet.GoogleNetHttpTransport;
import com.google.api.client.http.javanet.NetHttpTransport;
import com.google.api.client.json.JsonFactory;
import com.google.api.client.json.jackson2.JacksonFactory;
import com.google.api.client.util.store.FileDataStoreFactory;
import com.google.api.services.sheets.v4.Sheets;
import com.google.api.services.sheets.v4.SheetsScopes;
import com.google.api.services.sheets.v4.model.*;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.security.GeneralSecurityException;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
public class SheetsTest {
private static final String APPLICATION_NAME = "Metrics project";
private static final JsonFactory JSON_FACTORY = JacksonFactory.getDefaultInstance();
private static final String TOKENS_DIRECTORY_PATH = "tokens";
private static final List<String> SCOPES = Collections.singletonList(SheetsScopes.SPREADSHEETS);
private static final String CREDENTIALS_FILE_PATH = "/credentials.json";
getCredentials:
private static Credential getCredentials(final NetHttpTransport HTTP_TRANSPORT) throws IOException{
InputStream in = SheetsTest.class.getResourceAsStream(CREDENTIALS_FILE_PATH);
GoogleClientSecrets clientSecrets = GoogleClientSecrets.load(JSON_FACTORY, new InputStreamReader(in));
GoogleAuthorizationCodeFlow flow = new GoogleAuthorizationCodeFlow.Builder(
HTTP_TRANSPORT, JSON_FACTORY, clientSecrets, SCOPES)
.setDataStoreFactory(new FileDataStoreFactory(new java.io.File(TOKENS_DIRECTORY_PATH)))
.setAccessType("offline")
.build();
LocalServerReceiver receiver = new LocalServerReceiver.Builder().setPort(8888).build();
return new AuthorizationCodeInstalledApp(flow, receiver).authorize("user");
}
writeTest
//Creates a new row at row 2 then writes data to it...
static void writeTest(Report r, String sheetID, String range)throws GeneralSecurityException, IOException{
final NetHttpTransport HTTP_TRANSPORT = GoogleNetHttpTransport.newTrustedTransport();
ValueRange requestBody = requestBuilder(r, range);
Sheets sheetsService = new Sheets.Builder(HTTP_TRANSPORT,JSON_FACTORY, getCredentials(HTTP_TRANSPORT))
.setApplicationName(APPLICATION_NAME)
.build();
insertRow(sheetsService, sheetID);
Sheets.Spreadsheets.Values.Append request =
sheetsService.spreadsheets().values().append(sheetID, range, requestBody);
request.setValueInputOption("RAW");
//request.setInsertDataOption("INSERT_ROWS");
AppendValuesResponse resp = request.execute();
System.out.println(resp);
}
insertRow
//Inserts row at index, this is hardcoded to row 2 (0-indexed)
private static void insertRow(Sheets ss, String sheetID)throws IOException{
InsertDimensionRequest insertRow = new InsertDimensionRequest();
insertRow.setRange(new DimensionRange().setDimension("ROWS").setStartIndex(1).setEndIndex(2).setSheetId(0));
BatchUpdateSpreadsheetRequest r = new BatchUpdateSpreadsheetRequest().setRequests(Arrays.asList(
new Request().setInsertDimension(insertRow)
));
ss.spreadsheets().batchUpdate(sheetID, r).execute();
}
requestBuilder
//Populate ValueRange
static ValueRange requestBuilder( Report r, String range){
ValueRange v = new ValueRange()
.setValues(Arrays.asList(
Arrays.asList(r.value1),
Arrays.asList(r.value2),
Arrays.asList(r.value3),
Arrays.asList(r.value4),
Arrays.asList(r.value5)
))
.setMajorDimension("ROWS")
.setRange(range)
;
return v;
}

I am not allowed to comment on Elric's answer, but I would just like to make a correction.
To add a single row with your values, in the method:
requestBuilder \
It should be .setMajorDimension("COLUMNS") instead of "ROWS.
I hope this is helpful.

Nullpointer when getResourceAsStream(credentials.json) in Android Studio

According to Google Calendar API Quickstart for java (step 3), we can use
InputStream in = CalendarQuickstart.class.getResourceAsStream(CREDENTIALS_FILE_PATH);
to parse credentials.json.
However, it only works when running the file outside of Android Studio. Running the CalendarQuickStart.java main method (without running the app) in Android Studio will result nullpointer exception.
I found that using getAsset()is probably a way to get around the problem
InputStream in = context.getAssets().open(CREDENTIALS_FILE_PATH);.
Its' easy to set up asset folders but getting context to work is very tricky.
Here is my file path:
Here is my code:
import android.content.Context;
import android.support.v7.app.AppCompatActivity;
import com.google.api.client.auth.oauth2.Credential;
import com.google.api.client.extensions.java6.auth.oauth2.AuthorizationCodeInstalledApp;
import com.google.api.client.extensions.jetty.auth.oauth2.LocalServerReceiver;
import com.google.api.client.googleapis.auth.oauth2.GoogleAuthorizationCodeFlow;
import com.google.api.client.googleapis.auth.oauth2.GoogleClientSecrets;
import com.google.api.client.googleapis.javanet.GoogleNetHttpTransport;
import com.google.api.client.http.javanet.NetHttpTransport;
import com.google.api.client.json.JsonFactory;
import com.google.api.client.json.jackson2.JacksonFactory;
import com.google.api.client.util.DateTime;
import com.google.api.client.util.store.FileDataStoreFactory;
import com.google.api.services.calendar.Calendar;
import com.google.api.services.calendar.CalendarScopes;
import com.google.api.services.calendar.model.Event;
import com.google.api.services.calendar.model.Events;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.security.GeneralSecurityException;
import java.util.Collections;
import java.util.List;
public class CalendarQuickstart extends AppCompatActivity {
private static final String APPLICATION_NAME = "Google Calendar API Java Quickstart";
private static final JsonFactory JSON_FACTORY = JacksonFactory.getDefaultInstance();
private static final String TOKENS_DIRECTORY_PATH = "tokens";
/**
* Global instance of the scopes required by this quickstart.
* If modifying these scopes, delete your previously saved tokens/ folder.
*/
private static final List<String> SCOPES = Collections.singletonList(CalendarScopes.CALENDAR_READONLY);
private static final String CREDENTIALS_FILE_PATH = "/credentials.json";
/**
* Creates an authorized Credential object.
* #param HTTP_TRANSPORT The network HTTP Transport.
* #return An authorized Credential object.
* #throws IOException If the credentials.json file cannot be found.
*/
private static Credential getCredentials(final NetHttpTransport HTTP_TRANSPORT) throws IOException {
// Load client secrets.
InputStream in = CalendarQuickstart.class.getResourceAsStream(CREDENTIALS_FILE_PATH);
//InputStream in = context.getAssets().open(CREDENTIALS_FILE_PATH);
System.out.println(in);
GoogleClientSecrets clientSecrets = GoogleClientSecrets.load(JSON_FACTORY, new InputStreamReader(in));
// Build flow and trigger user authorization request.
GoogleAuthorizationCodeFlow flow = new GoogleAuthorizationCodeFlow.Builder(
HTTP_TRANSPORT, JSON_FACTORY, clientSecrets, SCOPES)
.setDataStoreFactory(new FileDataStoreFactory(new java.io.File(TOKENS_DIRECTORY_PATH)))
.setAccessType("offline")
.build();
LocalServerReceiver receiver = new LocalServerReceiver.Builder().setPort(8888).build();
return new AuthorizationCodeInstalledApp(flow, receiver).authorize("user");
}
public static void main(String... args) throws IOException, GeneralSecurityException {
// Build a new authorized API client service.
final NetHttpTransport HTTP_TRANSPORT = GoogleNetHttpTransport.newTrustedTransport();
Calendar service = new Calendar.Builder(HTTP_TRANSPORT, JSON_FACTORY, getCredentials(HTTP_TRANSPORT))
.setApplicationName(APPLICATION_NAME)
.build();
// List the next 20 events from the primary calendar.
DateTime now = new DateTime(System.currentTimeMillis());
Events events = service.events().list("primary")
.setMaxResults(20)
.setTimeMin(now)
.setOrderBy("startTime")
.setSingleEvents(true)
.execute();
List<Event> items = events.getItems();
if (items.isEmpty()) {
System.out.println("No upcoming events found.");
} else {
System.out.println("Upcoming events");
for (Event event : items) {
DateTime start = event.getStart().getDateTime();
if (start == null) {
start = event.getStart().getDate();
}
System.out.printf("%s (%s)\n", event.getSummary(), start);
}
}
}
}
What is a better way to run the CalendarQuickstart.java in Android Studio?

Why does Java not allow me to use OAuth2Native methods here?

Ok, so I'm trying to build a simple "Hello World"-type program that gets data from the Google Analytics API. I'm following the tutorial here:
https://developers.google.com/analytics/solutions/articles/hello-analytics-api
My code is below. There's no main method yet, I'm just trying to get authorized and get a Analytics Service Object set up. I'm working in Netbeans. I've downloaded an imported the classes from Google listed at the top of the code. My problem is that Netbeans gives me a "cannot find symbol" on the OAuth2Native.authorize() in the first line of initializeAnalytics and on Analytics.builder() a few lines below that. I assume there's some class I need to import, but I can't seem to find it and wonder if that's not the problem at all.
Many thanks in advance.
package helloanalyticsapi;
import com.google.api.client.auth.oauth2.*;
import com.google.api.client.extensions.jetty.auth.oauth2.LocalServerReceiver;
import com.google.api.client.googleapis.auth.oauth2.draft10.GoogleAccessProtectedResource;
import com.google.api.client.http.HttpTransport;
import com.google.api.client.http.javanet.NetHttpTransport;
import com.google.api.client.json.JsonFactory;
import com.google.api.client.json.jackson.JacksonFactory;
import com.google.api.services.analytics.Analytics;
import com.google.api.services.analytics.AnalyticsScopes;
import java.util.Arrays;
public class HelloAnalyticsApi {
// Global instance of the HTTP transport.
private static final HttpTransport HTTP_TRANSPORT = new NetHttpTransport();
// Global instance of the JSON factory.
private static final JsonFactory JSON_FACTORY = new JacksonFactory();
private static Analytics initializeAnalytics() throws Exception {
Credential credential = OAuth2Native.authorize(
HTTP_TRANSPORT, JSON_FACTORY, new LocalServerReceiver(),
Arrays.asList(AnalyticsScopes.ANALYTICS_READONLY));
Analytics analytics;
analytics = Analytics.builder(HTTP_TRANSPORT, JSON_FACTORY)
.setApplicationName("Hello-Analytics-API-Sample")
.setHttpRequestInitializer(credential)
.build();
return analytics;
}
public static void main(String[] args) {
}
}