Manage vacation settings with the Gmail API

importcom.google.api.client.googleapis.json.GoogleJsonError;
importcom.google.api.client.googleapis.json.GoogleJsonResponseException;
importcom.google.api.client.http.HttpRequestInitializer;
importcom.google.api.client.http.javanet.NetHttpTransport;
importcom.google.api.client.json.gson.GsonFactory;
importcom.google.api.services.gmail.Gmail;
importcom.google.api.services.gmail.GmailScopes;
importcom.google.api.services.gmail.model.VacationSettings;
importcom.google.auth.http.HttpCredentialsAdapter;
importcom.google.auth.oauth2.GoogleCredentials;
importjava.io.IOException;
importjava.time.LocalDateTime;
importjava.time.ZoneOffset;
importjava.time.ZonedDateTime;
/* Class to demonstrate the use of Gmail Enable Auto Reply API*/
publicclass EnableAutoReply{
/**
 * Enables the auto reply
 *
 * @return the reply message and response metadata.
 * @throws IOException - if service account credentials file not found.
 */
publicstaticVacationSettingsautoReply()throwsIOException{
/* Load pre-authorized user credentials from the environment.
 TODO(developer) - See https://developers.google.com/identity for
 guides on implementing OAuth2 for your application. */
GoogleCredentialscredentials=GoogleCredentials.getApplicationDefault()
.createScoped(GmailScopes.GMAIL_SETTINGS_BASIC);
HttpRequestInitializerrequestInitializer=newHttpCredentialsAdapter(credentials);
// Create the gmail API client
Gmailservice=newGmail.Builder(newNetHttpTransport(),
GsonFactory.getDefaultInstance(),
requestInitializer)
.setApplicationName("Gmail samples")
.build();
try{
// Enable auto reply by restricting domain with start time and end time
VacationSettingsvacationSettings=newVacationSettings()
.setEnableAutoReply(true)
.setResponseBodyHtml(
"I am on vacation and will reply when I am back in the office. Thanks!")
.setRestrictToDomain(true)
.setStartTime(LocalDateTime.now()
.toEpochSecond(ZoneOffset.from(ZonedDateTime.now()))*1000)
.setEndTime(LocalDateTime.now().plusDays(7)
.toEpochSecond(ZoneOffset.from(ZonedDateTime.now()))*1000);
VacationSettingsresponse=service.users().settings()
.updateVacation("me",vacationSettings).execute();
// Prints the auto-reply response body
System.out.println("Enabled auto reply with message : "+response.getResponseBodyHtml());
returnresponse;
}catch(GoogleJsonResponseExceptione){
// TODO(developer) - handle error appropriately
GoogleJsonErrorerror=e.getDetails();
if(error.getCode()==403){
System.err.println("Unable to enable auto reply: "+e.getDetails());
}else{
throwe;
}
}
returnnull;
}
}

fromdatetimeimport datetime, timedelta
importgoogle.auth
fromgoogleapiclient.discoveryimport build
fromgoogleapiclient.errorsimport HttpError
fromnumpyimport long
defenable_auto_reply():
"""Enable auto reply.
 Returns:Draft object, including reply message and response meta data.
 Load pre-authorized user credentials from the environment.
 TODO(developer) - See https://developers.google.com/identity
 for guides on implementing OAuth2 for the application.
 """
 creds, _ = google.auth.default()
 try:
 # create gmail api client
 service = build("gmail", "v1", credentials=creds)
 epoch = datetime.utcfromtimestamp(0)
 now = datetime.now()
 start_time = (now - epoch).total_seconds() * 1000
 end_time = (now + timedelta(days=7) - epoch).total_seconds() * 1000
 vacation_settings = {
 "enableAutoReply": True,
 "responseBodyHtml": (
 "I am on vacation and will reply when I am "
 "back in the office. Thanks!"
 ),
 "restrictToDomain": True,
 "startTime": long(start_time),
 "endTime": long(end_time),
 }
 # pylint: disable=E1101
 response = (
 service.users()
 .settings()
 .updateVacation(userId="me", body=vacation_settings)
 .execute()
 )
 print(f"Enabled AutoReply with message: {response.get('responseBodyHtml')}")
 except HttpError as error:
 print(f"An error occurred: {error}")
 response = None
 return response
if __name__ == "__main__":
 enable_auto_reply()