how can I send multipart mail?

[hanahiroAze]

Issue Summary

I'm trying to send multipart(text/html) mail like below.

from = SendGrid::Email.new(email: "from_mail", name: "name")
to = SendGrid::Email.new(email: "to_mail")
subject = "subject"
contents = [::SendGrid::Content.new(type: "text/plain", value: "text"), ::SendGrid::Content.new(type: "text/html", value: "html")]

mail = SendGrid::Mail.new
mail.from = from
mail.subject = subject
personalization = SendGrid::Personalization.new
personalization.add_to(to)
mail.add_personalization(personalization)
mail.add_content(contents.first)
mail.add_content(contents.second)
mail.add_category(SendGrid::Category.new(name: BoronSettings.smtp.user))

sg = SendGrid::API.new(api_key: "api key")
sg.client.mail._("send").post(request_body: mail.to_json)

Steps to Reproduce

1. when I try like this 2mail have sent, is this expected behavior?
2. when I try like below "{\"errors\":[{\"message\":\"Invalid type. Expected: object, given: string.\",\"field\":\"content.0\",\"help\":null}]}", has been occurred. is this expected behavior?

mail.add_content(contents)

3. can I send multipart email?
https://sendgrid.kke.co.jp/docs/Tutorials/A_Transaction_Mail/send_transaction_mail.html

Technical details:

• sendgrid-ruby Version: 5.2.0
• Ruby Version: 2.4.2

[hanahiroAze]

sorry I had misunderstood. the first behavior appeases my need.
now I wonder if I can set contents by array.

[thinkingserious]

Hello,

Currently, add_content does not support passing in an array.

However, the next version of this SDK will support an add_contents method that will accept an array.

If you have a moment, your feedback on issue #177 would be most appreciated.

Thanks!

With Best Regards,

Elmer