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var helper = require('sendgrid').mail
from_email = new helper.Email("test@example.com")
to_email = new helper.Email("test@example.com")
subject = "Hello World from the SendGrid Node.js Library"
content = new helper.Content("text/plain", "some text here")
mail = new helper.Mail(from_email, subject, to_email, content)

var sg = require('sendgrid').SendGrid(process.env.SENDGRID_API_KEY)
var requestBody = mail.toJSON()
var request = sg.emptyRequest()

request.method = 'POST'
request.path = '/v3/mail/send'
request.body = requestBody
sg.send(request, function (response) {
  console.log(response.statusCode)
  console.log(response.body)
  console.log(response.headers)
})

var sendgrid = require('sendgrid')(process.env.SENDGRID_USERNAME, process.env.SENDGRID_PASSWORD)

sendgrid.send({
    to: 'test@example.com',
    from: 'test@example.com',
    subject: 'Hello World from the SendGrid Node.js Library',
    text: 'some text here'
  }, function (err, json) {
    if (err) {
      res.status(500).json({ msg: 'Could not send feedback.' })
      return
    }
    res.status(202).json({ msg: 'Feedback accepted.' })
  })