[Rails 6 + Action Mailbox] Those who extracted the plain text of Gmail received by Action Mailbox

Task

How to extract plain text differs depending on whether Gmail received by ActionMailbox is a simplified version or not. Perhaps other mailers fall into either category. .. .. .. Should be.

Conclusion

How to extract each plain text. Gmail simplified version-> mail.body.decoded Gmail current version-> mail.text_part.body.decoded

plain_text extraction example


def plain_text
  mail.text_part.nil? ? mail.body.decoded : mail.text_part.body.decoded
end

At first I was impatient because I thought it was necessary for gem'sanitize'. Although it was a knowledge within the range of common sense, I stumbled unexpectedly.

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