Ruby on Rails Contact Form

Creating a Ruby on Rails contact form involves generating a controller, building a form view with fields such as name, email, and message, defining routes, and processing submitted parameters in a controller action that can display a flash confirmation message. The form can be expanded with additional field types, while submitted data may be saved or otherwise processed before redirecting the user. Rails offers several approaches for email delivery, including Ruby’s mail library, ActionMailer, third-party gems, external services, and JavaScript-based asynchronous requests, with ActionMailer presented as a common built-in option. The example configures ActionMailer with Mailtrap SMTP credentials, creates a Notifier mailer to send the message with the submitter’s address as the reply-to field, and calls the mailer from the form’s create action. It also describes using Mailtrap’s API through its Ruby gem as an alternative to SMTP and recommends adding anti-spam measures such as CAPTCHA for production contact forms.

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