importjava.util.Properties;importjavax.mail.MessagingException;importjavax.mail.Session;importjavax.mail.internet.InternetAddress;importjavax.mail.internet.MimeMessage;/* Class to demonstrate the use of Gmail Create Email API  */publicclassCreateEmail{/**   * Create a MimeMessage using the parameters provided.   *   * @param toEmailAddress   email address of the receiver   * @param fromEmailAddress email address of the sender, the mailbox account   * @param subject          subject of the email   * @param bodyText         body text of the email   * @return the MimeMessage to be used to send email   * @throws MessagingException - if a wrongly formatted address is encountered.   */publicstaticMimeMessagecreateEmail(StringtoEmailAddress,StringfromEmailAddress,Stringsubject,StringbodyText)throwsMessagingException{Propertiesprops=newProperties();Sessionsession=Session.getDefaultInstance(props,null);MimeMessageemail=newMimeMessage(session);email.setFrom(newInternetAddress(fromEmailAddress));email.addRecipient(javax.mail.Message.RecipientType.TO,newInternetAddress(toEmailAddress));email.setSubject(subject);email.setText(bodyText);returnemail;}}

importcom.google.api.services.gmail.model.Message;importjava.io.ByteArrayOutputStream;importjava.io.IOException;importjavax.mail.MessagingException;importjavax.mail.internet.MimeMessage;importorg.apache.commons.codec.binary.Base64;/* Class to demonstrate the use of Gmail Create Message API */publicclassCreateMessage{/**   * Create a message from an email.   *   * @param emailContent Email to be set to raw of message   * @return a message containing a base64url encoded email   * @throws IOException        - if service account credentials file not found.   * @throws MessagingException - if a wrongly formatted address is encountered.   */publicstaticMessagecreateMessageWithEmail(MimeMessageemailContent)throwsMessagingException,IOException{ByteArrayOutputStreambuffer=newByteArrayOutputStream();emailContent.writeTo(buffer);byte[]bytes=buffer.toByteArray();StringencodedEmail=Base64.encodeBase64URLSafeString(bytes);Messagemessage=newMessage();message.setRaw(encodedEmail);returnmessage;}}

importbase64fromemail.messageimportEmailMessageimportgoogle.authfromgoogleapiclient.discoveryimportbuildfromgoogleapiclient.errorsimportHttpErrordefgmail_create_draft():"""Create and insert a draft email.   Print the returned draft's message and id.   Returns: Draft object, including draft id and message 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 clientservice=build("gmail","v1",credentials=creds)message=EmailMessage()message.set_content("This is automated draft mail")message["To"]="gduser1@workspacesamples.dev"message["From"]="gduser2@workspacesamples.dev"message["Subject"]="Automated draft"# encoded messageencoded_message=base64.urlsafe_b64encode(message.as_bytes()).decode()create_message={"message":{"raw":encoded_message}}# pylint: disable=E1101draft=(service.users().drafts().create(userId="me",body=create_message).execute())print(f'Draft id:{draft["id"]}\nDraft message:{draft["message"]}')exceptHttpErroraserror:print(f"An error occurred:{error}")draft=Nonereturndraftif__name__=="__main__":gmail_create_draft()

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.Draft;importcom.google.api.services.gmail.model.Message;importcom.google.auth.http.HttpCredentialsAdapter;importcom.google.auth.oauth2.GoogleCredentials;importjava.io.ByteArrayOutputStream;importjava.io.File;importjava.io.IOException;importjava.util.Properties;importjavax.activation.DataHandler;importjavax.activation.DataSource;importjavax.activation.FileDataSource;importjavax.mail.MessagingException;importjavax.mail.Multipart;importjavax.mail.Session;importjavax.mail.internet.InternetAddress;importjavax.mail.internet.MimeBodyPart;importjavax.mail.internet.MimeMessage;importjavax.mail.internet.MimeMultipart;importorg.apache.commons.codec.binary.Base64;/* Class to demonstrate the use of Gmail Create Draft with attachment API */publicclassCreateDraftWithAttachment{/**   * Create a draft email with attachment.   *   * @param fromEmailAddress - Email address to appear in the from: header.   * @param toEmailAddress   - Email address of the recipient.   * @param file             - Path to the file to be attached.   * @return the created draft, {@code null} otherwise.   * @throws MessagingException - if a wrongly formatted address is encountered.   * @throws IOException        - if service account credentials file not found.   */publicstaticDraftcreateDraftMessageWithAttachment(StringfromEmailAddress,StringtoEmailAddress,Filefile)throwsMessagingException,IOException{/* 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_COMPOSE);HttpRequestInitializerrequestInitializer=newHttpCredentialsAdapter(credentials);// Create the gmail API clientGmailservice=newGmail.Builder(newNetHttpTransport(),GsonFactory.getDefaultInstance(),requestInitializer).setApplicationName("Gmail samples").build();// Create the email contentStringmessageSubject="Test message";StringbodyText="lorem ipsum.";// Encode as MIME messagePropertiesprops=newProperties();Sessionsession=Session.getDefaultInstance(props,null);MimeMessageemail=newMimeMessage(session);email.setFrom(newInternetAddress(fromEmailAddress));email.addRecipient(javax.mail.Message.RecipientType.TO,newInternetAddress(toEmailAddress));email.setSubject(messageSubject);MimeBodyPartmimeBodyPart=newMimeBodyPart();mimeBodyPart.setContent(bodyText,"text/plain");Multipartmultipart=newMimeMultipart();multipart.addBodyPart(mimeBodyPart);mimeBodyPart=newMimeBodyPart();DataSourcesource=newFileDataSource(file);mimeBodyPart.setDataHandler(newDataHandler(source));mimeBodyPart.setFileName(file.getName());multipart.addBodyPart(mimeBodyPart);email.setContent(multipart);// Encode and wrap the MIME message into a gmail messageByteArrayOutputStreambuffer=newByteArrayOutputStream();email.writeTo(buffer);byte[]rawMessageBytes=buffer.toByteArray();StringencodedEmail=Base64.encodeBase64URLSafeString(rawMessageBytes);Messagemessage=newMessage();message.setRaw(encodedEmail);try{// Create the draft messageDraftdraft=newDraft();draft.setMessage(message);draft=service.users().drafts().create("me",draft).execute();System.out.println("Draft id: "+draft.getId());System.out.println(draft.toPrettyString());returndraft;}catch(GoogleJsonResponseExceptione){// TODO(developer) - handle error appropriatelyGoogleJsonErrorerror=e.getDetails();if(error.getCode()==403){System.err.println("Unable to create draft: "+e.getDetails());}else{throwe;}}returnnull;}}

importbase64importmimetypesimportosfromemail.messageimportEmailMessagefromemail.mime.audioimportMIMEAudiofromemail.mime.baseimportMIMEBasefromemail.mime.imageimportMIMEImagefromemail.mime.textimportMIMETextimportgoogle.authfromgoogleapiclient.discoveryimportbuildfromgoogleapiclient.errorsimportHttpErrordefgmail_create_draft_with_attachment():"""Create and insert a draft email with attachment.   Print the returned draft's message and id.  Returns: Draft object, including draft id and message 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 clientservice=build("gmail","v1",credentials=creds)mime_message=EmailMessage()# headersmime_message["To"]="gduser1@workspacesamples.dev"mime_message["From"]="gduser2@workspacesamples.dev"mime_message["Subject"]="sample with attachment"# textmime_message.set_content("Hi, this is automated mail with attachment.Please do not reply.")# attachmentattachment_filename="photo.jpg"# guessing the MIME typetype_subtype,_=mimetypes.guess_type(attachment_filename)maintype,subtype=type_subtype.split("/")withopen(attachment_filename,"rb")asfp:attachment_data=fp.read()mime_message.add_attachment(attachment_data,maintype,subtype)encoded_message=base64.urlsafe_b64encode(mime_message.as_bytes()).decode()create_draft_request_body={"message":{"raw":encoded_message}}# pylint: disable=E1101draft=(service.users().drafts().create(userId="me",body=create_draft_request_body).execute())print(f'Draft id:{draft["id"]}\nDraft message:{draft["message"]}')exceptHttpErroraserror:print(f"An error occurred:{error}")draft=Nonereturndraftdefbuild_file_part(file):"""Creates a MIME part for a file.  Args:    file: The path to the file to be attached.  Returns:    A MIME part that can be attached to a message.  """content_type,encoding=mimetypes.guess_type(file)ifcontent_typeisNoneorencodingisnotNone:content_type="application/octet-stream"main_type,sub_type=content_type.split("/",1)ifmain_type=="text":withopen(file,"rb"):msg=MIMEText("r",_subtype=sub_type)elifmain_type=="image":withopen(file,"rb"):msg=MIMEImage("r",_subtype=sub_type)elifmain_type=="audio":withopen(file,"rb"):msg=MIMEAudio("r",_subtype=sub_type)else:withopen(file,"rb"):msg=MIMEBase(main_type,sub_type)msg.set_payload(file.read())filename=os.path.basename(file)msg.add_header("Content-Disposition","attachment",filename=filename)returnmsgif__name__=="__main__":gmail_create_draft_with_attachment()

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.Message;importcom.google.auth.http.HttpCredentialsAdapter;importcom.google.auth.oauth2.GoogleCredentials;importjava.io.ByteArrayOutputStream;importjava.io.IOException;importjava.util.Properties;importjavax.mail.MessagingException;importjavax.mail.Session;importjavax.mail.internet.InternetAddress;importjavax.mail.internet.MimeMessage;importorg.apache.commons.codec.binary.Base64;/* Class to demonstrate the use of Gmail Send Message API */publicclassSendMessage{/**   * Send an email from the user's mailbox to its recipient.   *   * @param fromEmailAddress - Email address to appear in the from: header   * @param toEmailAddress   - Email address of the recipient   * @return the sent message, {@code null} otherwise.   * @throws MessagingException - if a wrongly formatted address is encountered.   * @throws IOException        - if service account credentials file not found.   */publicstaticMessagesendEmail(StringfromEmailAddress,StringtoEmailAddress)throwsMessagingException,IOException{/* 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_SEND);HttpRequestInitializerrequestInitializer=newHttpCredentialsAdapter(credentials);// Create the gmail API clientGmailservice=newGmail.Builder(newNetHttpTransport(),GsonFactory.getDefaultInstance(),requestInitializer).setApplicationName("Gmail samples").build();// Create the email contentStringmessageSubject="Test message";StringbodyText="lorem ipsum.";// Encode as MIME messagePropertiesprops=newProperties();Sessionsession=Session.getDefaultInstance(props,null);MimeMessageemail=newMimeMessage(session);email.setFrom(newInternetAddress(fromEmailAddress));email.addRecipient(javax.mail.Message.RecipientType.TO,newInternetAddress(toEmailAddress));email.setSubject(messageSubject);email.setText(bodyText);// Encode and wrap the MIME message into a gmail messageByteArrayOutputStreambuffer=newByteArrayOutputStream();email.writeTo(buffer);byte[]rawMessageBytes=buffer.toByteArray();StringencodedEmail=Base64.encodeBase64URLSafeString(rawMessageBytes);Messagemessage=newMessage();message.setRaw(encodedEmail);try{// Create send messagemessage=service.users().messages().send("me",message).execute();System.out.println("Message id: "+message.getId());System.out.println(message.toPrettyString());returnmessage;}catch(GoogleJsonResponseExceptione){// TODO(developer) - handle error appropriatelyGoogleJsonErrorerror=e.getDetails();if(error.getCode()==403){System.err.println("Unable to send message: "+e.getDetails());}else{throwe;}}returnnull;}}

importbase64fromemail.messageimportEmailMessageimportgoogle.authfromgoogleapiclient.discoveryimportbuildfromgoogleapiclient.errorsimportHttpErrordefgmail_send_message():"""Create and send an email message  Print the returned  message id  Returns: Message object, including message id  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:service=build("gmail","v1",credentials=creds)message=EmailMessage()message.set_content("This is automated draft mail")message["To"]="gduser1@workspacesamples.dev"message["From"]="gduser2@workspacesamples.dev"message["Subject"]="Automated draft"# encoded messageencoded_message=base64.urlsafe_b64encode(message.as_bytes()).decode()create_message={"raw":encoded_message}# pylint: disable=E1101send_message=(service.users().messages().send(userId="me",body=create_message).execute())print(f'Message Id:{send_message["id"]}')exceptHttpErroraserror:print(f"An error occurred:{error}")send_message=Nonereturnsend_messageif__name__=="__main__":gmail_send_message()