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This documentation provides examples for specific use cases. Please open an issue or make a pull request for any use cases you would like us to document here. Thank you!

Table of Contents

Transactional Templates

For this example, we assume you have created a transactional template. Following is the template content we used for testing.

Template ID (replace with your own):

13b8f94f-bcae-4ec6-b752-70d6cb59f932

Email Subject:

<%subject%>

Template Body:

<html>
<head>
	<title></title>
</head>
<body>
Hello -name-,
<br /><br/>
I'm glad you are trying out the template feature!
<br /><br/>
<%body%>
<br /><br/>
I hope you are having a great day in -city- :)
<br /><br/>
</body>
</html>

With Mail Helper Class

require 'sendgrid-ruby'
include SendGrid

mail = Mail.new
mail.from = Email.new(email: '[email protected]')
mail.subject = 'I\'m replacing the subject tag'
personalization = Personalization.new
personalization.add_to(Email.new(email: '[email protected]'))
personalization.add_substitution(Substitution.new(key: '-name-', value: 'Example User'))
personalization.add_substitution(Substitution.new(key: '-city-', value: 'Denver'))
mail.add_personalization(personalization)
mail.add_content(Content.new(type: 'text/html', value: 'I\'m replacing the <strong>body tag</strong>'))
mail.template_id = '13b8f94f-bcae-4ec6-b752-70d6cb59f932'

sg = SendGrid::API.new(api_key: ENV['SENDGRID_API_KEY'])
begin
    response = sg.client.mail._("send").post(request_body: mail.to_json)
rescue Exception => e
    puts e.message
end
puts response.status_code
puts response.body
puts response.headers

Without Mail Helper Class

require 'sendgrid-ruby'
include SendGrid

data = JSON.parse('{
  "personalizations": [
    {
      "to": [
        {
          "email": "[email protected]"
        }
      ],
      "substitutions": {
        "-name-": "Example User",
        "-city-": "Denver"
      },
      "subject": "I\'m replacing the subject tag"
    }
  ],
  "from": {
    "email": "[email protected]"
  },
  "content": [
    {
      "type": "text/html",
      "value": "I\'m replacing the <strong>body tag</strong>"
    }
  ],
  "template_id": "13b8f94f-bcae-4ec6-b752-70d6cb59f932"
}')
sg = SendGrid::API.new(api_key: ENV['SENDGRID_API_KEY'])
begin
    response = sg.client.mail._("send").post(request_body: data)
rescue Exception => e
    puts e.message
end
puts response.status_code
puts response.body
puts response.headers

Adding Attachments

attachment = Attachment.new
attachment.content = Base64.strict_encode64(File.open(fpath, 'rb').read)
attachment.type = 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet'
attachment.filename = fname
attachment.disposition = 'attachment'
attachment.content_id = 'Reports Sheet'
mail.add_attachment(attachment)

Attachments must be base64 encoded, using Base64's strict_encode64 where no line feeds are added.

How to Setup a Domain Whitelabel

You can find documentation for how to setup a domain whitelabel via the UI here and via API here.

Find more information about all of SendGrid's whitelabeling related documentation here.

How to View Email Statistics

You can find documentation for how to view your email statistics via the UI here and via API here.

Alternatively, we can post events to a URL of your choice via our Event Webhook about events that occur as SendGrid processes your email.