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Compose, deliver and test your emails easily in Elixir. Supports SMTP, Sendgrid, Mandrill, Postmark, Mailgun and many more out of the box. Preview your emails in the browser. Test your email sending code.
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Files
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Files
lib/swoosh/adapters/mailjet.ex
defmodule Swoosh.Adapters.Mailjet do
@moduledoc ~S"""
An adapter that sends email using the Mailjet API.
For reference: [Mailjet API docs](https://dev.mailjet.com/guides/#send-api-v3-1)
## Dependency
Mailjet adapter requires `Plug` to work properly.
## Example
# config/config.exs
config :sample, Sample.Mailer,
adapter: Swoosh.Adapters.Mailjet,
api_key: "my-api-key",
secret: "my-secret-key"
# lib/sample/mailer.ex
defmodule Sample.Mailer do
use Swoosh.Mailer, otp_app: :sample
end
"""
use Swoosh.Adapter, required_config: [:api_key, :secret], required_deps: [plug: Plug.Conn.Query]
alias Swoosh.{Email, Attachment}
@base_url "https://api.mailjet.com/v3.1"
@api_endpoint "send"
def deliver(%Email{} = email, config \\ []) do
headers = prepare_headers(config)
url = [base_url(config), "/", @api_endpoint]
case :hackney.post(url, headers, prepare_body(email), [:with_body]) do
{:ok, 200, _headers, body} ->
{:ok, %{id: get_message_id(body)}}
{:ok, error_code, _headers, body} when error_code >= 400 ->
{:error, {error_code, Swoosh.json_library().decode!(body)}}
{:error, reason} ->
{:error, reason}
end
end
# MessageHref: https://api.mailjet.com/v3/REST/message/#{message_id}
defp get_message_id(%{"Messages" => [%{"To" => [%{"MessageID" => message_id}]}]}) do
message_id
end
defp get_message_id(body) when is_binary(body) do
body
|> Swoosh.json_library().decode!
|> get_message_id
end
defp base_url(config), do: config[:base_url] || @base_url
defp prepare_headers(config) do
[
{"User-Agent", "swoosh/#{Swoosh.version()}"},
{"Authorization", "Basic #{auth(config)}"},
{"Content-Type", "application/json"}
]
end
defp auth(config), do: Base.encode64("#{config[:api_key]}:#{config[:secret]}")
defp prepare_body(email) do
%{}
|> prepare_from(email)
|> prepare_to(email)
|> prepare_subject(email)
|> prepare_html(email)
|> prepare_text(email)
|> prepare_cc(email)
|> prepare_bcc(email)
|> prepare_reply_to(email)
|> prepare_attachments(email)
|> prepare_variables(email)
|> prepare_template_id(email)
|> prepare_custom_headers(email)
|> wrap_into_messages
|> Swoosh.json_library.encode!()
end
defp wrap_into_messages(body), do: %{Messages: [body]}
defp prepare_custom_headers(body, %{headers: headers}), do: Map.put(body, "Headers", headers)
defp prepare_attachments(body, %{attachments: []}), do: body
defp prepare_attachments(body, %{attachments: attachments}) do
{normal_attachments, inline_attachments} =
Enum.split_with(attachments, fn %{type: type} -> type == :attachment end)
body
|> Map.put("Attachments", Enum.map(normal_attachments, &prepare_attachment/1))
|> Map.put("InlinedAttachments", Enum.map(inline_attachments, &prepare_attachment/1))
end
defp prepare_attachment(attachment) do
%{
"ContentType" => attachment.content_type,
"Filename" => attachment.filename,
"Base64Content" => Attachment.get_content(attachment, :base64)
}
end
defp prepare_recipients(recipients), do: Enum.map(recipients, &prepare_recipient(&1))
defp prepare_recipient({name, address}), do: %{"Name" => name, "Email" => address}
defp prepare_from(body, %{from: from}), do: Map.put(body, "From", prepare_recipient(from))
defp prepare_to(body, %{to: to}), do: Map.put(body, "To", prepare_recipients(to))
defp prepare_reply_to(body, %{reply_to: nil}), do: body
defp prepare_reply_to(body, %{reply_to: reply_to}),
do: Map.put(body, "ReplyTo", prepare_recipient(reply_to))
defp prepare_cc(body, %{cc: []}), do: body
defp prepare_cc(body, %{cc: cc}), do: Map.put(body, "Cc", prepare_recipients(cc))
defp prepare_bcc(body, %{bcc: []}), do: body
defp prepare_bcc(body, %{bcc: bcc}), do: Map.put(body, "Bcc", prepare_recipients(bcc))
defp prepare_subject(body, %{subject: subject}), do: Map.put(body, "Subject", subject)
defp prepare_text(body, %{text_body: nil}), do: body
defp prepare_text(body, %{text_body: text_body}), do: Map.put(body, "TextPart", text_body)
defp prepare_html(body, %{html_body: nil}), do: body
defp prepare_html(body, %{html_body: html_body}), do: Map.put(body, "HTMLPart", html_body)
defp prepare_variables(body, %{provider_options: %{variables: variables}}) do
Map.put(body, "Variables", variables)
end
defp prepare_variables(body, _email), do: body
defp prepare_template_id(body, %{provider_options: %{template_id: template_id}}) do
body
|> Map.put("TemplateID", template_id)
|> Map.put("TemplateLanguage", true)
end
defp prepare_template_id(body, _email), do: body
end