gem install jetemail

gem "jetemail"

require "jetemail"

client = JetEmail::Client.new("your-transactional-api-key")

result = client.email.send(
  from: "Your App <hello@yourdomain.com>",
  to: "user@example.com",
  subject: "Welcome!",
  html: "<h1>Welcome!</h1>"
)

puts result["id"]

# API key string
client = JetEmail::Client.new("your-transactional-api-key")

# Or with options
client = JetEmail::Client.new(
  api_key: "your-transactional-api-key",
  base_url: "https://api.jetemail.com" # optional
)

result = client.batch.send([
  {
    from: "you@example.com",
    to: "alice@example.com",
    subject: "Hello Alice",
    html: "<p>Hi Alice!</p>"
  },
  {
    from: "you@example.com",
    to: "bob@example.com",
    subject: "Hello Bob",
    html: "<p>Hi Bob!</p>"
  }
])

result = client.email.send(
  from: "you@example.com",
  to: "recipient@example.com",
  subject: "Invoice",
  html: "<p>Please find your invoice attached.</p>",
  attachments: [
    JetEmail::Attachment.from_path("/path/to/invoice.pdf"),
    JetEmail::Attachment.from_content("Hello World", "hello.txt")
  ]
)

begin
  client.email.send(...)
rescue JetEmail::JetEmailError => e
  puts e.status_code
  puts e.message
  puts e.response
end