[RUBY] I want to manually send an authorization email with Devise

Resend method

When you have trouble implementing Qiita --devise confirmation email RubyDoc - Module: Devise::Models::Confirmable

It's almost as written here, and the Devise reference is also written.

User.find(1).send_confirmation_instructions # manually send instructions

Situations to do this

--The mail was not sent due to some problem on the mailer side. --Worker stopped and lost queue for sending emails

Etc. are possible. It tends to occur during operation, so how do you resend it every time? I was looking into it, so I wrote it.

that's all.

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