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Last active October 7, 2018 07:25
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Create a Gmail draft via Google Apps Script #gas #gmail
Raw
Advansed.gs
var RAW_ = function(){
//this['prOrder_'] = ['from', 'to', 'subject', 'MIME-Version', 'Content-Transfer-Encoding', 'Content-Type'];
this['prOrder_'] = ['from', 'to', 'subject', 'MIME-Version', 'Content-Type'];
this['from'] = ' ';
this['to'] = ' ';
this['subject'] = ' ';
this['MIME-Version'] = '1.0';
this['Content-Transfer-Encoding'] = 'BASE64';
this['Content-Type'] = 'text/html; charset=UTF-8';
this['body'] = ' ';
}
RAW_.prototype.toRFC = function(){
var line = '';
for(var i = 0; i < this.prOrder_.length; i++){
line += this.prOrder_[i] + ': ' + this[this.prOrder_[i]] + '\r\n';
}
line += '\r\n' + this['body'];
return line;
}
RAW_.prototype.encode = function(){
return Utilities.base64Encode(this.toRFC(), Utilities.Charset.UTF_8).replace(/\//g,'_').replace(/\+/g,'-');
}
Raw
Code.gs
function createDraftHTMLEmail(){
var forScope = GmailApp.getInboxUnreadCount();
var r = new RAW_();
r.from = 'Me <' + '[email protected]' + '>';
r.to = 'You <'+ '[email protected]' +'>';
r.subject = 'testing createDraftHTMLEmail';
r.body = '<html><body>' + '<h1>World</h1>Проверка <a href="http://google.com" target="_blank"> LINK </a>' + '</body></html>';
var draftBody = r.encode();
var params = {
method: 'post',
contentType: 'application/json',
headers: {
'Authorization': 'Bearer ' + ScriptApp.getOAuthToken()
},
muteHttpExceptions:true,
payload:JSON.stringify({
'message': {
'raw': draftBody
}
})
};
var resp = UrlFetchApp.fetch('https://www.googleapis.com/gmail/v1/users/me/drafts', params);
}
@oshliaer
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Author

Hi, MrGreggles.

Please, let me know if you need help. I have a little free time.

Cheers!

@MrGreggles
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Hi Alexander,

This is great and I'm using it every day now! Maybe the last issue is getting an attachment to work. I can do it via GmailApp.sendEmail() but I'm not technically savvy enough to work out how to do it in your draft code. I've tried putting the 'attachments' line in a few different places but with no success. I'm playing a guessing game. Is it possible? Thanks for any assitance. ~

// test - draft created but no attachment
var invoice = DocumentApp.openById('1uE5uR6LCYCdMv1YM0FvNgpG_F66kPVqDqPT6WD2BM4E');

var params = {
method: 'post',
contentType: 'application/json',
headers: {
'Authorization': 'Bearer ' + ScriptApp.getOAuthToken()
},
muteHttpExceptions:true,
payload:JSON.stringify({
'message': {
'raw': draftBody,
'attachments': [invoice.getAs(MimeType.PDF)]
}
})
};

var resp = UrlFetchApp.fetch('https://www.googleapis.com/gmail/v1/users/me/drafts', params);

@oshliaer
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Author

Hi MrGreggles
There is a example of drafts Create a Gmail draft with attachments via Google Apps Script

@Gsuz
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Gsuz commented Jul 16, 2015

Hi, would it be possible to add the user's gmail signature into this draft?

@brianncunningham
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So, I'm trying to modify your code to pull the contents of a google document, and make that the text of a draft gmail message. Things work OK, but all of the end of line feeds and blank line feeds have been stripped from the message. How could this be modified to work?

function createHTMLDraftInGmail() {

  var forScope = GmailApp.getInboxUnreadCount(); // needed for auth scope
//  var htmlBody = "<p>Hello, I am an HTML message</p><hr>";

  var doc = DocumentApp.openById('1fsRMxtLx3IBEYvmVy9W8uHLw3Uf2OIh4L7ZSxpkixbY');

  var body = doc.getBody();

  var mbody = body.getText();  

  var raw = 'Subject: Save Draft Message\r\n' +
            'Content-Type: text/html; charset=UTF-8\r\n' + 
            '\r\n' + mbody;

  var draftBody = Utilities.base64Encode(raw, Utilities.Charset.UTF_8).replace(/\//g,'_').replace(/\+/g,'-');

  var params = {
    method      : "post",
    contentType : "application/json",
    headers     : {"Authorization": "Bearer " + ScriptApp.getOAuthToken()},
    muteHttpExceptions:true,
    payload:JSON.stringify({
      "message": {
        "raw": draftBody
      }
    })
  };

  var resp = UrlFetchApp.fetch("https://www.googleapis.com/gmail/v1/users/me/drafts", params);
  Logger.log(resp.getContentText());
}

I appreciate your help!

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