如何用附件发送GTLRGmail_Message

search一段时间后，我设法发送一封电子邮件，但没有附件如下：

NSString *messageString = @"From: \"From Email USer Name\" <fromEmail>\r\n"; messageString = [messageString stringByAppendingString:@"To: \"To Email User Name\" <ToEmail>\r\n"]; messageString = [messageString stringByAppendingString:@"Subject: New stuff\r\n"]; messageString = [messageString stringByAppendingString:@"Content-type: text/html;charset=iso-8859-1\r\n\r\n"]; messageString = [messageString stringByAppendingString:@"Hello my friend, \n can you please call me when have free time. \nMark."]; NSData *data = [messageString dataUsingEncoding:NSUTF8StringEncoding]; NSString *base64Encoded = GTLREncodeWebSafeBase64(data); GTLRGmail_Message *message = [[GTLRGmail_Message alloc] init]; message.raw = base64Encoded; GTLRGmailQuery_UsersMessagesSend *query = [GTLRGmailQuery_UsersMessagesSend queryWithObject:message userId:@"myEmailAddress" uploadParameters:nil]; [self.service executeQuery:query completionHandler:^(GTLRServiceTicket * _Nonnull callbackTicket, id _Nullable object, NSError * _Nullable callbackError) { NSLog(@"%@",callbackError); }]; 

我试图添加GTLRUploadParameters ，如下所示：

 GTLRUploadParameters *params = [GTLRUploadParameters uploadParametersWithData:imageData MIMEType:@"message/rfc822"]; 

但仍然没有成功，我试图拆分消息在多个GTLRGmail_MessagePartBody并将它们添加到容器GTLRGmail_MessagePartBody作为message.payload像：

 NSString *filePath = [[NSBundle mainBundle] pathForResource:@"IMG_1253" ofType:@"jpg"]; /***************************** create a imageData part ******************/ NSData *imagedata = [NSData dataWithContentsOfFile:filePath]; NSString *imageBase64String = GTLREncodeWebSafeBase64(imagedata); GTLRGmail_MessagePartBody *bodyImage = [[GTLRGmail_MessagePartBody alloc] init]; bodyImage.data = imageBase64String; bodyImage.size = @(imagedata.length); GTLRGmail_MessagePart *imagePart = [[GTLRGmail_MessagePart alloc] init]; imagePart.body = bodyImage; imagePart.mimeType = @"image/jpeg"; imagePart.filename = @"IMG_1253"; /***************************** create a message part ******************/ NSString *messageString = @"Hello my friend, \n can you please call me when have free time. \nMark."; NSData *dataMessage = [messageString dataUsingEncoding:NSUTF8StringEncoding]; NSString *base64EncodedMessage = GTLREncodeWebSafeBase64(dataMessage); GTLRGmail_MessagePartBody *bodyText = [[GTLRGmail_MessagePartBody alloc] init]; bodyText.data = base64EncodedMessage; bodyText.size = @(dataMessage.length); GTLRGmail_MessagePart *messagePart = [[GTLRGmail_MessagePart alloc] init]; messagePart.body = bodyText; messagePart.mimeType = @"text/plain"; /***************************** create a payload part ******************/ GTLRGmail_MessagePartHeader *toHeader = [[GTLRGmail_MessagePartHeader alloc] init]; toHeader.name = @"to"; toHeader.value = @"userEmail"; GTLRGmail_MessagePart *payload = [[GTLRGmail_MessagePart alloc] init]; payload.mimeType = @"multipart/mixed; boundary=\"IMG_1253\""; payload.parts = @[messagePart, imagePart]; GTLRGmail_Message *message = [[GTLRGmail_Message alloc] init]; message.payload = payload; GTLRGmailQuery_UsersMessagesSend *query = [GTLRGmailQuery_UsersMessagesSend queryWithObject:message userId:@"myEmail" uploadParameters:nil]; [self.service executeQuery:query completionHandler:^(GTLRServiceTicket * _Nonnull callbackTicket, id _Nullable object, NSError * _Nullable callbackError) { NSData *data = callbackError.userInfo[@"data"]; NSString *string = [[NSString alloc] initWithData:data encoding:0]; NSLog(@"%@",string); }]; 

但在这种情况下，我得到： Code=400 "'raw' RFC822 payload message string or uploading message via /upload/* URL required" ，如果我添加base64Encoded message.raw从以前的解决scheme我得到的电子邮件，但没有附件
我做错了什么？

Answer 1

所以解决scheme是一个修改了一点维亚 答案是不是更漂亮的，但：

 GTLRUploadParameters *uploadParam = [[GTLRUploadParameters alloc] init]; uploadParam.MIMEType = @"message/rfc822"; uploadParam.data = [self getFormattedRawMessage]; GTLRGmail_Message *message = [[GTLRGmail_Message alloc] init]; GTLRGmailQuery_UsersMessagesSend *query = [GTLRGmailQuery_UsersMessagesSend queryWithObject:message userId:@"[e-mail]" uploadParameters:uploadParam]; [self.service executeQuery:query completionHandler:^(GTLRServiceTicket * _Nonnull callbackTicket, id _Nullable object, NSError * _Nullable callbackError) { NSData *data = callbackError.userInfo[@"data"]; NSString *string = [[NSString alloc] initWithData:data encoding:0]; NSLog(@"%@",string); }]; 

和getFormattedRawMessage ：

 - (NSData *)getFormattedRawMessage { // Date string NSDateFormatter *dateFormatter = [[NSDateFormatter alloc]init]; dateFormatter.dateFormat = @"EEE, dd MMM yyyy HH:mm:ss Z"; NSString *strDate = [dateFormatter stringFromDate:[NSDate date]]; NSString *finalDate = [NSString stringWithFormat:@"Date: %@\r\n", strDate]; // From string NSString *from = @"From: <[e-mail]>\r\n"; // To string NSString *to = @"To: <[e-mail]>\r\n"; // CC string NSString *cc = @""; // BCC string NSString *bcc = @""; // Subject string NSString *subject = @"Subject: New stuff\r\n\r\n"; // Body string NSString *body = @"Hello my friend, \n can you please call me when have free time. \nMark. \r\n"; // Final string to be returned NSString *rawMessage = @""; // Send as "multipart/mixed" NSString *contentTypeMain = @"Content-Type: multipart/mixed; boundary=\"project\"\r\n"; // Reusable Boundary string NSString *boundary = @"\r\n--project\r\n"; // Body string NSString *contentTypePlain = @"Content-Type: text/plain; charset=\"UTF-8\"\r\n"; // Combine strings from "finalDate" to "body" rawMessage = [[[[[[[[[contentTypeMain stringByAppendingString:finalDate] stringByAppendingString:from]stringByAppendingString:to]stringByAppendingString:cc]stringByAppendingString:bcc]stringByAppendingString:subject]stringByAppendingString:boundary]stringByAppendingString:contentTypePlain]stringByAppendingString:body]; // Image Content Type string NSString *contentTypeJPG = boundary; contentTypeJPG = [contentTypeJPG stringByAppendingString:[NSString stringWithFormat:@"Content-Type: image/jpeg; name=\"%@\"\r\n",@"IMG_1253.jpg"]]; contentTypeJPG = [contentTypeJPG stringByAppendingString:@"Content-Transfer-Encoding: base64\r\n"]; // PNG image data UIImage *image = [UIImage imageNamed:@"IMG_1253.jpg"]; NSData *jpegData = UIImageJPEGRepresentation(image, 1); NSString *imageBase64String = GTLREncodeBase64(jpegData); NSString *pngString = [NSString stringWithFormat:@"%@\r\n",imageBase64String]; contentTypeJPG = [contentTypeJPG stringByAppendingString:pngString]; // Add to raw message rawMessage = [rawMessage stringByAppendingString:contentTypeJPG]; // End string rawMessage = [rawMessage stringByAppendingString:@"\r\n--project--"]; return [rawMessage dataUsingEncoding:NSUTF8StringEncoding]; } 

但我仍然知道如何使用GTLRGmail_MessagePartBody和GTLRGmail_MessagePartHeader message.payload