Solid Errors

# Solid Errors

Solid Errors is a DB-based, app-internal exception tracker for Rails applications, designed with simplicity and performance in mind. It uses the new [Rails error reporting API](https://guides.rubyonrails.org/error_reporting.html) to store uncaught exceptions in the database, and provides a simple UI for viewing and managing exceptions. > [!WARNING] > The current point release of Rails (7.1.3.2) has a bug which severely limits the utility of Solid Errors. Exceptions raised during a web request *are not* reported to Rails' error reporter. There is a fix in the `main` branch, but it has not been released in a new point release. As such, Solid Errors is **not** production-ready unless you are running Rails from the `main` branch or until a new point version is released and you upgrade. > The original bug report can be found [here](https://github.com/rails/rails/issues/51002) and the pull request making the fix is [here](https://github.com/rails/rails/pull/51050). I will try to backport the fix into the gem directly, but I haven't quite figured it out yet. ## Installation Install the gem and add to the application's Gemfile by executing: ```bash $ bundle add solid_errors ``` If bundler is not being used to manage dependencies, install the gem by executing: ```bash $ gem install solid_errors ``` After installing the gem, run the installer: ```bash $ rails generate solid_errors:install ``` This will create the `db/errors_schema.rb` file. You will then have to add the configuration for the errors database in `config/database.yml`. If you're using sqlite, it'll look something like this: ```yaml production: primary: <<: *default database: storage/production.sqlite3 errors: <<: *default database: storage/production_errors.sqlite3 migrations_paths: db/errors_migrate ``` ...or if you're using MySQL/PostgreSQL/Trilogy: ```yaml production: primary: &primary_production <<: *default database: app_production username: app password: <%= ENV["APP_DATABASE_PASSWORD"] %> errors: <<: *primary_production database: app_production_errors migrations_paths: db/errors_migrate ``` > [!NOTE] > Calling `bin/rails solid_errors:install` will automatically add `config.solid_errors.connects_to = { database: { writing: :errors } }` to `config/environments/production.rb`, so no additional configuration is needed there (although you must make sure that you use the `errors` name in `database.yml` for this to match!). But if you want to use Solid Errors in a different environment (like staging or even development), you'll have to manually add that `config.solid_errors.connects_to` line to the respective environment file. And, as always, make sure that the name you're using for the database in `config/database.yml` matches the name you use in `config.solid_errors.connects_to`. Then run `db:prepare` in production to ensure the database is created and the schema is loaded. Then mount the engine in your `config/routes.rb` file: ```ruby authenticate :user, -> (user) { user.admin? } do mount SolidErrors::Engine, at: "/solid_errors" end ``` > [!NOTE] > Be sure to [secure the dashboard](#authentication) in production. ## Usage All exceptions are recorded automatically. No additional code required. Please consult the [official guides](https://guides.rubyonrails.org/error_reporting.html) for an introduction to the error reporting API. There are intentionally few features; you can view and resolve errors. That’s it. The goal is to provide a simple, lightweight, and performant solution for tracking exceptions in your Rails application. If you need more features, you should probably use a 3rd party service like [Honeybadger](https://www.honeybadger.io/), whose MIT-licensed [Ruby agent gem](https://github.com/honeybadger-io/honeybadger-ruby) provided a couple of critical pieces of code for this project. ### Manually reporting an Error Errors can be added to Solid Errors via the [Rails error reporter](https://guides.rubyonrails.org/error_reporting.html). There are [three ways](https://guides.rubyonrails.org/error_reporting.html#using-the-error-reporter) you can use the error reporter: `Rails.error.handle` will report any error raised within the block. It will then swallow the error, and the rest of your code outside the block will continue as normal. ```ruby result = Rails.error.handle do 1 + '1' # raises TypeError end result # => nil 1 + 1 # This will be executed ``` `Rails.error.record` will report errors to all registered subscribers and then re-raise the error, meaning that the rest of your code won't execute. ```ruby Rails.error.record do 1 + '1' # raises TypeError end 1 + 1 # This won't be executed ``` You can also manually report errors by calling `Rails.error.report`: ```ruby begin # code rescue StandardError => e Rails.error.report(e) end ``` All 3 reporting APIs (`#handle`, `#record`, and `#report`) support the following options, which are then passed along to all registered subscribers: * `handled`: a Boolean to indicate if the error was handled. This is set to `true` by default. `#record` sets this to `false`. * `severity`: a Symbol describing the severity of the error. Expected values are: `:error`, `:warning`, and `:info`. `#handle` sets this to `:warning`, while `#record` sets it to `:error`. * `context`: a Hash to provide more context about the error, like request or user details * `source`: a String about the source of the error. The default source is `"application"`. Errors reported by internal libraries may set other sources; the Redis cache library may use "redis_cache_store.active_support", for instance. Your subscriber can use the source to ignore errors you aren't interested in. ```ruby Rails.error.handle(context: { user_id: user.id }, severity: :info) do # ... end ``` ### Configuration You can configure Solid Errors via the Rails configuration object, under the `solid_errors` key. Currently, 6 configuration options are available: * `connects_to` - The database configuration to use for the Solid Errors database. See [Database Configuration](#database-configuration) for more information. * `username` - The username to use for HTTP authentication. See [Authentication](#authentication) for more information. * `password` - The password to use for HTTP authentication. See [Authentication](#authentication) for more information. * `sends_email` - Whether or not to send emails when an error occurs. See [Email notifications](#email-notifications) for more information. * `email_from` - The email address to send a notification from. See [Email notifications](#email-notifications) for more information. * `email_to` - The email address(es) to send a notification to. See [Email notifications](#email-notifications) for more information. #### Database Configuration `config.solid_errors.connects_to` takes a custom database configuration hash that will be used in the abstract `SolidErrors::Record` Active Record model. This is required to use a different database than the main app. For example: ```ruby # Use a single separate DB for Solid Errors config.solid_errors.connects_to = { database: { writing: :solid_errors, reading: :solid_errors } } ``` or ```ruby # Use a separate primary/replica pair for Solid Errors config.solid_errors.connects_to = { database: { writing: :solid_errors_primary, reading: :solid_errors_replica } } ``` #### Authentication Solid Errors does not restrict access out of the box. You must secure the dashboard yourself. However, it does provide basic HTTP authentication that can be used with basic authentication or Devise. All you need to do is setup a username and password. There are two ways to setup a username and password. First, you can use the `SOLIDERRORS_USERNAME` and `SOLIDERRORS_PASSWORD` environment variables: ```ruby ENV["SOLIDERRORS_USERNAME"] = "frodo" ENV["SOLIDERRORS_PASSWORD"] = "ikeptmysecrets" ``` Second, you can set the `SolidErrors.username` and `SolidErrors.password` variables in an initializer: ```ruby # Set authentication credentials for Solid Errors config.solid_errors.username = Rails.application.credentials.solid_errors.username config.solid_errors.password = Rails.application.credentials.solid_errors.password ``` Either way, if you have set a username and password, Solid Errors will use basic HTTP authentication. If you have not set a username and password, Solid Errors will not require any authentication to view the dashboard. If you use Devise for authentication in your app, you can also restrict access to the dashboard by using their `authenticate` constraint in your routes file: ```ruby authenticate :user, -> (user) { user.admin? } do mount SolidErrors::Engine, at: "/solid_errors" end ``` #### Email notifications Solid Errors _can_ send email notifications whenever an error occurs, if your application has ActionMailer already properly setup to send emails. However, in order to activate this feature you must define the email address(es) to send the notifications to. Optionally, you can also define the email address to send the notifications from (useful if your email provider only allows emails to be sent from a predefined list of addresses) or simply turn off this feature altogether. There are two ways to configure email notifications. First, you can use environment variables: ```ruby ENV["SOLIDERRORS_SEND_EMAILS"] = true # defaults to false ENV["SOLIDERRORS_EMAIL_FROM"] = "errors@myapp.com" # defaults to "solid_errors@noreply.com" ENV["SOLIDERRORS_EMAIL_TO"] = "devs@myapp.com" # no default, must be set ``` Second, you can set the values via the configuration object: ```ruby # Set authentication credentials for Solid Errors config.solid_errors.send_emails = true config.solid_errors.email_from = "errors@myapp.com" config.solid_errors.email_to = "devs@myapp.com" ``` If you have set `send_emails` to `true` and have set an `email_to` address, Solid Errors will send an email notification whenever an error occurs. If you have not set `send_emails` to `true` or have not set an `email_to` address, Solid Errors will not send any email notifications. ### Examples There are only two screens in the dashboard. * the index view of all unresolved errors: ![image description](images/index-screenshot.png) * and the show view of a particular error: ![image description](images/show-screenshot.png) ### Usage with API-only Applications If your Rails application is an API-only application (generated with the `rails new --api` command), you will need to add the following middleware to your `config/application.rb` file in order to use the dashboard UI provided by Solid Errors: ```ruby # /config/application.rb config.middleware.use ActionDispatch::Cookies config.middleware.use ActionDispatch::Session::CookieStore config.middleware.use ActionDispatch::Flash ``` ### Overwriting the views You can find the views in [`app/views`](https://github.com/fractaledmind/solid_errors/tree/main/app/views). ```bash app/views/ ├── layouts │ └── solid_errors │ ├── _style.html │ └── application.html.erb └── solid_errors ├── error_mailer │ ├── error_occurred.html.erb │ └── error_occurred.text.erb ├── errors │ ├── _actions.html.erb │ ├── _error.html.erb │ ├── _row.html.erb │ ├── index.html.erb │ └── show.html.erb └── occurrences ├── _collection.html.erb └── _occurrence.html.erb ``` You can always take control of the views by creating your own views and/or partials at these paths in your application. For example, if you wanted to overwrite the application layout, you could create a file at `app/views/layouts/solid_errors/application.html.erb`. If you wanted to remove the footer and the automatically disappearing flash messages, as one concrete example, you could define that file as: ```erb Solid Errors <%= csrf_meta_tags %> <%= csp_meta_tag %> <%= render "layouts/solid_errors/style" %>

<%= content_for?(:content) ? yield(:content) : yield %>

<% if notice.present? %>

<%= notice %>

<% end %> <% if alert.present? %>

<%= alert %>

<% end %>

``` ## Development After checking out the repo, run `bin/setup` to install dependencies. Then, run `rake test` to run the tests. You can also run `bin/console` for an interactive prompt that will allow you to experiment. To install this gem onto your local machine, run `bundle exec rake install`. To release a new version, update the version number in `version.rb`, and then run `bundle exec rake release`, which will create a git tag for the version, push git commits and the created tag, and push the `.gem` file to [rubygems.org](https://rubygems.org). ## Contributing Bug reports and pull requests are welcome on GitHub at https://github.com/fractaledmind/solid_errors. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the [code of conduct](https://github.com/fractaledmind/solid_errors/blob/main/CODE_OF_CONDUCT.md). ## License The gem is available as open source under the terms of the [MIT License](https://opensource.org/licenses/MIT). ## Code of Conduct Everyone interacting in the SolidErrors project's codebases, issue trackers, chat rooms and mailing lists is expected to follow the [code of conduct](https://github.com/fractaledmind/solid_errors/blob/main/CODE_OF_CONDUCT.md).