Failed sending mail through google api with javascript

Question

I'm trying to send an email through Google API with JavaScript.

My issue is that when I try to send a simple mail with no attachments, I get the following error:

'raw' RFC822 payload message string or uploading message via /upload/* URL required`

My code

function sendMessage() {
gapi.client.load('gmail', 'v1', function() {
    // Web-safe base64 
    var to = 'someone@someone.nl',
        subject = 'Hello World',
        content = 'send a Gmail.'

    var base64EncodedEmail = btoa(
          "Content-Type:  text/plain; charset=\"UTF-8\"\n" +
          "Content-length: 5000\n" +
          "Content-Transfer-Encoding: message/rfc2822\n" +
          "to: someone@someone.nl\n" +
          "from: \"test\" <test@gmail.com>\n" +
          "subject: Hello world\n\n" +

          "The actual message text goes here"
            ).replace(/\+/g, '-').replace(/\//g, '_');

    var mail= base64EncodedEmail;
    console.log(mail);
    var request = gapi.client.gmail.users.messages.send({
      'userId': "me",
      'message': {
          'raw': mail
        }
    });
    request.execute(function(response){
     console.log(response);
   });
  });        

}

Related: http://stackoverflow.com/questions/34546142/gmail-api-for-sending-mails-in-node-js/ — Sergio, Jan 10 '17 at 16:35
Can you please explain why `replace(/\+/g, '-').replace(/\//g, '_')` ••• Replacing `+` with `-` and `/` with `_`? Also to simplify use `'` (single quote) to avoid escaping `"`. — Mars Robertson, Nov 26 '17 at 13:29

score 21 · Accepted Answer · edited Dec 31 '15 at 11:35

21

After days i had found the answer by my own. The problem was that the 'message' in the body only can be used when you send an attachment in the email.

If you have no attachment the query looks like I wrote down here

var mail= base64EncodedEmail;
console.log(mail);
var request = gapi.client.gmail.users.messages.send({
  'userId': "me",
  'resource': {
      'raw': mail
    }
});
request.execute(function(response){
 console.log(response);
});

edited Dec 31 '15 at 11:35

Sergio

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answered Jun 03 '15 at 07:28

Jarno Zijnstra

321
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9

1

Thanks! I find it inconsistent that ```drafts.create``` and ```message.send``` are not using the same syntax... – Mars Robertson Dec 18 '16 at 07:06
2

is there a python version for this? – paradox Jun 18 '17 at 23:07
Python 3.8: raw = base64.urlsafe_b64encode(message.as_bytes()).decode() gmail_api.users().messages().send(userId= "me", body = {'raw': raw}).execute() – Peter F May 21 '20 at 07:41

Failed sending mail through google api with javascript

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