Sebastian Wilgosz

A founder of @HanamiMastery and content_for_devs podcast, Karate master, piano guy, husband, father and productivity madman.

I love to make others' lives better as mine is quite good already.

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Episodes/articles by Sebastian Wilgosz:

#52 Render flash messages in Hanami, but like a PRO

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 maintainable for a future growth of your application.

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 Hanami 2 applications.

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 community! This way we enjoy reaching our important milestone of releasing 50th Hanami Mastery episode!

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 overhead, now you can! Meet Phlex, a view engine, where you can write Ruby instead of 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.

When there is a complete framework rewrite, upgrading may be tricky, and it definitely is this time. Hope this guide will help you save some headache during upgrading on the hardest shift ever.

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 email.

#45 Github integration with HanamiPRO

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 each other.

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

Working with open source for a long time is tremendous work, often unappreciated. Join me with a moment of sharing a word of appreciation to one of OSS heroes you know!

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 our Hanami application with Google drive.

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 cosmetic improvements.

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 production-ready Hanami application, that will support our content creation.

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 programs.

The 2022 was a big progress for me in multiple fields, but 2023 is going to be even bigger. Let's summarize the year, stop for a while to thank everyone, and figure out plans for the upcoming year!

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 think about web applications in Ruby.

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, don't look for more.

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? In this episode, I'll show you how to quickly implement pagination from scratch for your Hanami projects.

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 applications, including Hanami 2.

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 for each one.

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 in the Ruby ecosystem.

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 applications using sitemap_generator gem!

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 you how to keep it only in the loved section.

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 great and how to work with it.

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-validation. Here is why!

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 familiar with it.

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 params, handle errors and and use before or after hooks.

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 documentation - a great skill that can make you a better developer.

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, it's possible. Here is how!

Dependency Injection is an extremely useful programming technique and can be easily implemented in Ruby! Mastering it is an important skill to leverage the power of Hanami applications! dry-container is one way to help you with it!

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 Hanami uses them by default! Check out some useful debugging tips!

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 application by using Hanami 2 as an example.

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 typed structs using dry-struct.

I've wondered why Hanami uses sequel under the hood. There are some problems with ActiveRecord, but I've wanted to know exactly, what it is about. Here is the summary of my foundings.

If you can contribute to open-source, do it only if you can benefit from it. So if you can't benefit, either drop the idea or... make it beneficial!

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

One of the most common problems in web applications, is to update the application state based on the business rules. How it's possible, that API specification does not cover it?

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 mapping Rails to Hanami for easier learning.

Have you ever wondered which DRY-RB library learn first? I did when I started with DRY-RB. I hope this will help!

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 sample Rails application.

People seem to be surprised being mentioned in my articles, tweets, videos, or when I send a personal 'thank you' email. I've decided to sort it out here...

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 to parse the input to different output. 'dry-transformer' can help you with it.

People ask me about the simple explanation of Hanami architecture. Why is it so complicated? Is it? I'll try to explain it in simple words.

Configuring projects and components is one of the most common features in programming in general. dry-configurable is a standalone gem providing you exactly this in Ruby! Read about how to use it.

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

Open-Source development is hard nowadays. Here I explain how I want to make it easier.

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 application.

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

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