Recent Hanami Mastery screencast episodes

Working with templates is a hard job and eliminating the logic out of them is absolutely not trivial. In this episode we'll use Hanami tools to implement…

Showing flash messages in Hanami is trivial, and it is even shown in the official guides. In this episode though, we make this future-proof, testable, and…

Probably any web app nowadays requires font icons to be loaded this or other way. In this episode, I'm showing the integration of Font Awesome icons in…

This episode is a special release, when Seb interviews Tim Riley and Luca Guidi from the Hanami Core Team, asking them questions collected from the…

Registry pattern is one of many programming best practices, applied by default in Hanami projects. In this episode, we deep dive into how the…

There is a famous video about the IT skill iceberg - but thankfully, there is an alternative. If you ever wondered if you can build entire websites without HTML…

Sending emails in web apps is a very common task. In this video, I'm going to send a contact email using hanami-mailer gem.

With the release of Hanami 2.1, the view layer is fully integrated with our Hanami applications. Let's check how to make use of a form helper to send a contact…

If you're a developer, you know GitHub. And if you don't know Hanami, you definitely should. In this episode, I'll show you how to make them both to know…

Bridgetown is the best static site generator for Ruby, and here is why.

In the world of amazing technology pace, integrations between services are the key to success and the same applies to ruby projects. In this episode, we integrate…

If you want to work with front_matter in Ruby, you need to know the front_matter_parser gem. Here is everything you need.

Learn how to quickly deploy Hanami apps to production-ready server, using Render hosting provider, the best replacement for Heroku right now.

I always liked rails templating collections that allowed us to quickly compose ruby apps. Now the same is possible for Hanami!

Have you ever considered how to efficiently render HTML out of your markdown input in ruby? Here we cover this problem with additional custom…

In this episode we are going to design high-level concept of Hanami-based Web application. In 2023 we're going to automate a few things, and create…

Utility scripts in Ruby can be very powerful, but also very messy. In this episode I showcase dry-cli, to help you maintain advanced ruby CLI…

In Hanami, you can reduce technical debt and keep fast development when the application grows. For that, slices is the key feature to revolutionize the way you…

Handling exceptions is one of the most needed features for any applications that can scale. If you are wondering, how to handle errors in Hanami 2 applications,…

Upgrading gems in the bigger project can become a hustle if you don't use tools like pessimize to help you deal with them safely.

Semantic versioning is a useful approach to version your projects or gems - and that will be necessary at some point if you seriously think about ruby career.

There are plenty of popular ways to handle pagination in Ruby apps. But did you know, that ROM supports Pagination out of the box? And so Hanami does?…

If you have experience testing ruby applications, I'm sure you've heard about FactoryBot. Here I show you the alternative, suited for ROM-based…

Understand data mapping in ROM, on all levels! In this episode we go through examples of simple to complex data mapping with ROM, with real usecases…

Relations are the heart of ROM, but for bigger applications, you'll appreciate to know repositories.

Hanami 2.0 comes without the persistence layer nor views preconfigured. It is useful then to know how to set up the best ORM available…

Sidekiq is probably the most known background processing engine for Ruby projects. In this episode I'll show you how to integrate it in Hanami applications!

Sitemap is one of the core features for any web application, to make sure your site is indexed properly. Here is how to generate sitemaps in Hanami…

Enchance your test coverage reports by mastering the Simplecov gem!

Do you measure your test coverage? Do you know that everything below 80% is irrelevant? Here I list 7 levels of test coverage, check out where you are!

Rubocop recently managed to be listed as one of the most loved and most frustrating ruby gems which is quite an achievement. In this episode, I'll show…

Routing is one of the basic components of any web application. In this episode I'll dig a bit into the Hanami router from the usage point of view, covering why it's…

Serialize your API responses in Hanami applications with alba - the fastest ruby serialization gem

Validating data input is an extremely important problem to tackle in all applications. In Ruby ecosystem there is no better tool for that than…

dry-schema is an extremely powerful validation engine for Ruby applications and as it's a built-in validation solution for Hanami projects, It is important to get…

Hanami actions are one of the richest building blocks in terms of available features and in this episode I want to go over them, showing how to validate…

Everyone would love to have a secret power. A skill that makes you a hero. There is no one such skill, but in this episode, I'll talk about inline…

Check out these 4 ways to separate your business logic aside of your application layer in Ruby applications.

Dependency injection brings you great power, but comes with its own headaches. If you can get rid of them, You're left with the power only. In Ruby, with dry-system,…

Dependency Injection is an extremely useful programming technique and can be easily implemented in Ruby! Mastering it is an important skill to leverage the…

dry-system and dry-container are extremely powerful tools and if you understand how to work with them, you'll never look back. It's amazing that…

Authorizating your API applications can be trivial, if you have proper tolls to do it. Here I showcase how authorization with JWT can be done effortless in any ruby…

2 real-world examples of using algebraic effects in Hanami ruby applications with dry-effects.

A struct with static type check for all attributes is a pretty useful thing in Ruby and all other languages. Here are 3 examples of useful applications for…

Every application needs persistence. Saving records in a database is just a must. Here is how you can do it in Hanami applications!

When I've started with learning Hanami, I've struggled a lot because of the different concepts Hanami has over Rails. In this episode of Hanami Mastery I'm…

Everyone knows how messy Rails controllers can be come. In this episode, I'm implementing the service-pattern on steroids using dry-monads in my…

Have you ever need to stringify keys outside of rails? Whether you want to import or export CSVs or communicate with external services you may need…

Configuring projects and components is one of the most common features in programming in general. dry-configurable is a standalone gem providing you…

Use constantize, classify, underscore and MORE on Strings in Pure ruby! Use dry-inflector to quickly apply non-standard string transformations!

In this episode I make use of Bulma CSS framework and integrate it with Hanami 2.0 application to prettify it with the least effort possible.

In this episode I explain the Hanami architecture related to view rendering, by using Hanami View, Hanami Actions, and templates, to list articles for a blog…

How to create a brand new Hanami app lighting fast by using the Hanami application template.