I cant get my form to work on heroku using ruby on rails

Question

I've spent the last 4 hours just trying different things to figure out why the emails and errors i get on heroku are happening. Im very new to Rails this is my second app, so please dumb it down and talk to me like a small child, lol

http://dev-match-matt-napper.herokuapp.com/contacts/new This is my heroku link and when you click submit it says something went wrong. I am following the simpleCodeCast on udemy videos, no response from him yet.

https://github.com/Mnapper3/simpleCodeCasts_saas this is my git hub the files (master) i used were:

app/controller/contacts_controller
app/mailers/contact_mailer
app/models/contact
app/contact_mailer/contact_email.html
app/views/contacts/new.html

really hope i have given you enough info to help me, or maybe you could put in how you create form emailers? or link a video

PS im using cloud9 & if you clone this app you need to :

bundle install
bundle update
rake db:migrate

then you'll be able to preview it.

Please help!!!
-Matt Napper

Answer 1

You need to add mailer configuration in /config/environments/production.rb as heroku by default runs on production mode.

Add this in your /config/environments/production.rb

config.action_mailer.smtp_settings = {
  address: "smtp.gmail.com",
  port: 587,
  domain: Rails.application.secrets.domain_name,
  authentication: "plain",
  enable_starttls_auto: true,
  user_name: Rails.application.secrets.email_provider_username,
  password: Rails.application.secrets.email_provider_password
}

# ActionMailer Config
config.action_mailer.default_url_options = { :host => Rails.application.secrets.domain_name }
config.action_mailer.delivery_method = :smtp
config.action_mailer.perform_deliveries = true
config.action_mailer.raise_delivery_errors = false

Then in /config/secrets.yml add the following in production block like,

production:
  domain_name: <%= ENV["DOMAIN_NAME"] %>
  email_provider_username: <%= ENV["GMAIL_USERNAME"] %>
  email_provider_password: <%= ENV["GMAIL_PASSWORD"] %>

Finally, you must add these 3 environment variables on your heroku app. To add them, go to your heroku app settings page, I'm assuming it should be https://dashboard.heroku.com/apps/dev-match-matt-napper/settings

There you'll see a Reveal Config Vars button, click on that and add Key as your environment variable and value as it's value. For example:

Key is: GMAIL_USERNAME

Value is: Your gmail email address