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RailsConf 2019 - Resolve Errors Straight from the Error Pages by Genadi Samokovarov

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Raised exceptions in Rails 6 can hint the error pages to display a button that can invoke a resolving action. We call them actionable errors!

In this talk, we'll take a deep dive into what actionable errors are, and how they are dispatched through the Rails application errors handling mechanism.

We'll also write a small Rails plugin and use actionable errors to guide our users with better errors, and actions to resolve them. We'll learn how to define custom actionable errors and strategies around when and how to raise them to help our users to set up the plugin from the comfort of the error pages.

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## Summary of 'Resolve Errors Straight from the Error Pages'

In the talk "Resolve Errors Straight from the Error Pages" presented at RailsConf 2019 by Genadi Samokovarov, the concept of actionable errors in Rails 6 is explored in depth. This session delves into how raised exceptions can enhance the user experience by providing not just error messages but also actionable solutions directly from error pages, effectively guiding users to resolve issues themselves.

### Key Points Discussed:
- **Actionable Errors Defined**: 
  - Actionable errors are a new feature in Rails 6 that allow developers to display buttons on error pages. These buttons enable users to initiate an action that can resolve the error immediately.

- **Error Handling Mechanism**:
  - The presentation covers the dispatching of actionable errors through Rails' built-in error handling. This allows developers to customize how errors are communicated and resolved, improving user interaction with the application.

- **Creating a Rails Plugin**:
  - Samokovarov describes the process of developing a small Rails plugin that implements actionable errors. The plugin acts as a framework that other developers can utilize to add this functionality to their applications easily.

- **Custom Actionable Errors**:
  - The talk emphasizes defining custom actionable errors, elucidating strategies for when and how to raise these errors. This ensures that the provided solutions are relevant and effective based on the context of the error.

- **User Guidance Through Errors**:
  - The overarching goal is to improve error management by helping end-users troubleshoot and fix issues themselves. By integrating actionable features directly into error pages, users are less likely to become frustrated and more likely to resolve problems quickly.

### Important Conclusions:
- **Enhanced User Experience**: 
  - The implementation of actionable errors can significantly enhance user experience by reducing downtime and empowering users with problem-solving tools.

- **Practical Implementation**: 
  - Developers are encouraged to start thinking about errors not just as points of failure but as opportunities to provide value through helpful, actionable content.

In summary, Genadi Samokovarov’s presentation at RailsConf 2019 provides valuable insights into how developers can leverage actionable errors to improve their Rails applications' user experience and maintainability. By transforming error handling into an interactive process, applications can become more resilient and user-friendly, ultimately leading to happier users and more efficient error resolution processes.

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