Send email via Gmail API (Javascript) - email

Question

I'm trying to get a hello world sending a mail via the JS Gmail API. I have authorised correctly (labels can be listed) according to this.
I'm using the following code, running in the browser:
const message =
"From: my.email#gmail.com\r\n" +
"To: my.email#gmail.com\r\n" +
"Subject: As basic as it gets\r\n\r\n" +
"This is the plain text body of the message. Note the blank line between the header information and the body of the message.";
// The body needs to be base64url encoded.
const encodedMessage = btoa(message)
const reallyEncodedMessage = encodedMessage.replace(/\+/g, '-').replace(/\//g, '_').replace(/=+$/, '')
gapi.client.gmail.users.messages.send({
userId: 'me',
requestBody: {
// same response with any of these
raw: reallyEncodedMessage
// raw: encodedMessage
// raw: message
}
}).then(function () { console.log("done!")});
This gives an HTTP 400 response:
{
"error": {
"errors": [
{
"domain": "global",
"reason": "invalidArgument",
"message": "'raw' RFC822 payload message string or uploading message via /upload/* URL required"
}
],
"code": 400,
"message": "'raw' RFC822 payload message string or uploading message via /upload/* URL required"
}
}
This is using JS API available at https://apis.google.com/js/api.js. RFC822 example taken from MSDN and elsewhere. Web-safe base64 encoding the RFC822 message as far as I can tell is a the standard with this API. Same error in both Firefox and Chrome.
Where am I going wrong?

Answer 1

I think that the raw data is correct. So how about this modification?
From :
requestBody: {
// same response with any of these
raw: reallyEncodedMessage
// raw: encodedMessage
// raw: message
}
To :
resource: { // Modified
// same response with any of these
raw: reallyEncodedMessage
// raw: encodedMessage
// raw: message
}
If this didn't work, please tell me. I would like to think of other solution.

Answer 2

I dont know how to code work but code work by removing the body that are been added to you raw statement.
gapi.client.gmail.users.messages.send({
userId: 'me',
// resourse: {
// same response with any of these
raw: reallyEncodedMessage
// raw: encodedMessage
// raw: message
// }
I hope you try this because answer by #Tanaike was not working for me