"Hello World" for email, using SendGrid with Ruby.

hello-email.rb

# using SendGrid's Ruby Library
# https://github.com/sendgrid/sendgrid-ruby
require 'sendgrid-ruby'
 
sendgrid = SendGrid::Client.new do |c|
  c.api_key = 'SENDGRID_APIKEY'
end
 
email = SendGrid::Mail.new do |m|
  m.to      = 'test@sendgrid.com'
  m.from    = 'you@youremail.com'
  m.subject = 'Sending with SendGrid is Fun'
  m.html    = 'and easy to do anywhere, even with Ruby'
end
 
sendgrid.send(email)