node.js - Error when sending email using nodemailer -

i'm trying set nodemailer app i'm creating. i'm receiving error when try , run code.

this setup:

const nodemailer = require("nodemailer");  const xoauth2 = require("xoauth2");    var transporter = nodemailer.createtransport({    service: 'gmail',    auth: {      xoauth2: xoauth2.createxoauth2generator({        user: '****@gmail.com',        clientid: '*******************************',        clientsecret: '*****************************',        refreshtoken: '*****************************'      })    }  });    var mailoptions = {    from: 'dave <*******@gmail.com>',    to: '*******@gmail.com',    subject: 'nodemailer test',    text: 'hello world'  }    transporter.sendmail(mailoptions, function(err, res) {    if (err) {      console.log(err);    } else {      console.log('email sent');    }  })

obviously, i've double checked client id, secret , refresh token. following error:

{ error: invalid login: 535-5.7.8 username , password not accepted. learn  more @     535 5.7.8  https://support.google.com/mail/?p=badcredentials y22sm6749013wry.51 - gsmtp     @ smtpconnection._formaterror (/home/ubuntu/workspace/nufc/nufc_blogv1.2/node_modules/nodemailer/lib/smtp-connection/index.j    s:557:19)     @ smtpconnection._actionauthcomplete (/home/ubuntu/workspace/nufc/nufc_blogv1.2/node_modules/nodemailer/lib/smtp-connection/    index.js:1248:34)     @ smtpconnection._responseactions.push.str  (/home/ubuntu/workspace/nufc/nufc_blogv1.2/node_modules/nodemailer/lib/smtp-conn    ection/index.js:340:26)     @ smtpconnection._processresponse (/home/ubuntu/workspace/nufc/nufc_blogv1.2/node_modules/nodemailer/lib/smtp-connection/ind    ex.js:706:20)     @ smtpconnection._ondata   (/home/ubuntu/workspace/nufc/nufc_blogv1.2/node_modules/nodemailer/lib/smtp-connection/index.js:5    09:14)     @ tlssocket._socket.on.chunk   (/home/ubuntu/workspace/nufc/nufc_blogv1.2/node_modules/nodemailer/lib/smtp- connection/index    .js:461:47)     @ emitone (events.js:96:13)     @ tlssocket.emit (events.js:188:7)     @ readableaddchunk (_stream_readable.js:176:18)     @ tlssocket.readable.push (_stream_readable.js:134:10)     @ tlswrap.onread (net.js:551:20)   code: 'eauth',   response: '535-5.7.8 username , password not accepted. learn more at\n535  5.7.8  https://support.google.com/mail/?p=badcrede    ntials y22sm6749013wry.51 -  gsmtp',   responsecode: 535,   command: 'auth plain' } 

this first time i've tried using nodemailer , feel i'm missing key piece here not sure what.

new error when using real email , password:

{ error: invalid login: 534-5.7.14    <https://accounts.google.com/signin/continue?sarp=1&scc=1&plt=akgnsbvz 534-5.7.14  vx8swywncimlbvsoc9zlfxi_9pku2judkwdpy4cjngqct2l0qjkfr3af_slavcv816xj-8 534-5.7.14 ec36n8fzzitno-gnjdvwrsf6eixfeu_ohzp07tc4s3la0x2k9xprwajmlswfnoa1iz2gwx 534-5.7.14 aybkjwt8nmd-wpnnk5j_bn9f3oi56xfafw0nmjxknufhhxpots0sgcc6ern_9hgyp2tyfe 534-5.7.14 mad2gvxdcvp5o9v-yuga9nrch8ey4> please log in via web browser , 534-5.7.14 try again. 534-5.7.14  learn more @ 534 5.7.14  https://support.google.com/mail/answer/78754 f135sm7148225wmd.7  - gsmtp @ smtpconnection._formaterror  (/home/ubuntu/workspace/nufc/nufc_blogv1.2/node_modules/nodemailer/lib/smtp- connection/index.js:557:19) @ smtpconnection._actionauthcomplete (/home/ubuntu/workspace/nufc/nufc_blogv1.2/node_modules/nodemailer/lib/smtp- connection/index.js:1248:34) @ smtpconnection._responseactions.push.str (/home/ubuntu/workspace/nufc/nufc_blogv1.2/node_modules/nodemailer/lib/smtp-connection/index.js:340:26) @ smtpconnection._processresponse (/home/ubuntu/workspace/nufc/nufc_blogv1.2/node_modules/nodemailer/lib/smtp-connection/index.js:706:20) @ smtpconnection._ondata (/home/ubuntu/workspace/nufc/nufc_blogv1.2/node_modules/nodemailer/lib/smtp-connection/index.js:509:14) @ tlssocket._socket.on.chunk (/home/ubuntu/workspace/nufc/nufc_blogv1.2/node_modules/nodemailer/lib/smtp-connection/index.js:461:47) @ emitone (events.js:96:13) @ tlssocket.emit (events.js:188:7) @ readableaddchunk (_stream_readable.js:176:18) @ tlssocket.readable.push (_stream_readable.js:134:10) @ tlswrap.onread (net.js:551:20) 

code: 'eauth', response: '534-5.7.14 please log in via web browser and\n534-5.7.14 try again.\n534-5.7.14 learn more at\n534 5.7.14 https://support.google.com/mail/answer/78754 f135sm7148225wmd.7 - gsmtp', responsecode: 534, command: 'auth plain' }

you need set transporter differently, using actual email , password of real google account.

// create reusable transporter object using default smtp transport let transporter = nodemailer.createtransport({     service: 'gmail',     auth: {         user: 'somerealemailaddress@gmail.com', //email address send         pass: 'somerealemailpassword' //the actual password account     } });