Alice, Bob and Bastards - Andriy Savchenko

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Ruby Meditation

Lightning Talk at Ruby Meditation #17 September 9, 2017 Hub 4.0, Kyiv

Technology

Самая большая дыра в безопасности — это дыра в голове разработчика

Talk of Sergey Sergyenko, CEO at Cybergizer, at Ruby Meditation #30 Online 24.10.2020 Next conference - http://www.rubymeditation.com/ Description: I hope that the code I write continues to be used after I die. Which is why I only ever write legacy code" - this is what Patterson mentioned on his Twitter last September. In this talk, I will define metrics and try to distinguish code from Legacy to the one that Survived. Also, I will introduce the so-called "Code Survival" refactoring approach. Announcements and conference materials https://www.fb.me/RubyMeditation News https://twitter.com/RubyMeditation Photos https://www.instagram.com/RubyMeditation The stream of Ruby conferences (not just ours) https://t.me/RubyMeditation

Life with GraphQL API: good practices and unresolved issues - Roman Dubrovsky...

Ruby Meditation

Talk of Roman Dubrovsky, Backend developer at Datarockets, at Ruby Meditation #29 Kyiv 14.12.2019 Next conference - http://www.rubymeditation.com/ Description: More than two years we’re developing and supporting GraphQL API, tried to make it public and integrated our app with other GraphQL APIs. In this talk, I'll try to summarize our experience, say about good practices, issues we found and can resolve. And which we can’t. I will show you how to set up and how to use them. Announcements and conference materials https://www.fb.me/RubyMeditation News https://twitter.com/RubyMeditation Photos https://www.instagram.com/RubyMeditation The stream of Ruby conferences (not just ours) https://t.me/RubyMeditation

Where is your license, dude? - Viacheslav Miroshnychenko | Ruby Meditation 29

Ruby Meditation

Talk of Viacheslav Miroshnychenko, Software Engineer at Human Agency, at Ruby Meditation #29 Kyiv 14.12.2019 Next conference - http://www.rubymeditation.com/ Description: Why do we need to think about licenses and check them in our projects? Let's try to figure out it. During this talk, you will learn tools that help you to automate the process of checking licenses for all libraries in your project. I will show you how to set up and how to use them. Announcements and conference materials https://www.fb.me/RubyMeditation News https://twitter.com/RubyMeditation Photos https://www.instagram.com/RubyMeditation The stream of Ruby conferences (not just ours) https://t.me/RubyMeditation

Dry-validation update. Dry-validation vs Dry-schema 1.0 - Aleksandra Stolyar ...

Ruby Meditation

Talk of Aleksandra Stolyar, Ruby developer at DataArt, at Ruby Meditation #29 Kyiv 14.12.2019 Next conference - http://www.rubymeditation.com/ Description: I will talk about dry-rb ecosystem and it’s major components - dry-validation and dry-schema which are very helpful for validations. This year dry-rb introduced a major update to its’ gems and I faced some problems when decided to marry these updates with a project. This talk will cover some of differences and specifics of dry-validation and dry-schema updates. Announcements and conference materials https://www.fb.me/RubyMeditation News https://twitter.com/RubyMeditation Photos https://www.instagram.com/RubyMeditation The stream of Ruby conferences (not just ours) https://t.me/RubyMeditation

How to cook Rabbit on Production - Bohdan Parshentsev | Ruby Meditation 28

Ruby Meditation

Talk of Bohdan Parshentsev, senior backend engineer at P2H, at Ruby Meditation #28 Kyiv 26.10.2019 Slideshare - ** Next conference - http://www.rubymeditation.com/ This presentation is connected with presentation How to cook Rabbit on Production - Serhiy Nazarov | Ruby Meditation 28 Why we need a Rabbit? Let's try to cook it tasty. And what else? - Live demo of several useful dishes. Be ready to use Telegram to have fun with us. Announcements and conference materials https://www.fb.me/RubyMeditation News https://twitter.com/RubyMeditation Photos https://www.instagram.com/RubyMeditation The stream of Ruby conferences (not just ours) https://t.me/RubyMeditation * The channel of the organizers of the meetup https://t.me/incredevly

How to cook Rabbit on Production - Serhiy Nazarov | Ruby Meditation 28

Ruby Meditation

Talk of Serhiy Nazarov, founder QPARD, system architect, at Ruby Meditation #28 Kyiv 26.10.2019 Next conference - http://www.rubymeditation.com/ This presentation is connected with presentation How to cook Rabbit on Production - Bohdan Parshentsev | Ruby Meditation 28 Why we need a Rabbit? Let's try to cook it tasty. And what else? - Live demo of several useful dishes. Be ready to use Telegram to have fun with us. Announcements and conference materials https://www.fb.me/RubyMeditation News https://twitter.com/RubyMeditation Photos https://www.instagram.com/RubyMeditation The stream of Ruby conferences (not just ours) https://t.me/RubyMeditation

Reinventing the wheel - why do it and how to feel good about it - Julik Tarkh...

Ruby Meditation

Talk of Julik Tarkhanov, senior backend engineer, WeTransfer, Amsterdam, at Ruby Meditation #28 Kyiv 26.10.2019 Next conference - http://www.rubymeditation.com/ It is often a choice, sometimes a whim, and sometimes an act of desperation. We idolise reuse while sometimes the road not taken is just as exciting. Let's chat about where it is appropriate to "do the thing again", take the scenic route and enjoy the view. Announcements and conference materials https://www.fb.me/RubyMeditation News https://twitter.com/RubyMeditation Photos https://www.instagram.com/RubyMeditation The stream of Ruby conferences (not just ours) https://t.me/RubyMeditation * The channel of the organizers of the meetup https://t.me/incredevly

Performance Optimization 101 for Ruby developers - Nihad Abbasov (ENG) | Ruby...

Ruby Meditation

Speech of Nihad Abbasov, Senior Software Engineer at Digital Classifieds, at Ruby Meditation 27, Dnipro, 19.05.2019 Slideshare - Next conference - http://www.rubymeditation.com/ How fast is your code? Performance is crucial as your startup grows, and optimizing your application can make a huge impact on user experience. During this talk, you will learn hints, techniques and best practices for improving the overall speed of your Ruby application. Announcements and conference materials https://www.fb.me/RubyMeditation News https://twitter.com/RubyMeditation Photos https://www.instagram.com/RubyMeditation The stream of Ruby conferences (not just ours) https://t.me/RubyMeditation

Speech of Ruslan Tolstov, Ruby Developer at MLSDev, at Ruby Meditation 27, Dnipro, 19.05.2019 Slideshare - Next conference - http://www.rubymeditation.com/ During this talk, we’ll discuss serverless technologies. In particular, we will talk about popular serverless platforms like AWS Lambda, Google CF, and Microsoft AF and also dwell upon serverless frameworks for managing and deploying your functions. As well, we will touch upon the potential use cases of this new approach in your existing projects. Announcements and conference materials https://www.fb.me/RubyMeditation News https://twitter.com/RubyMeditation Photos https://www.instagram.com/RubyMeditation The stream of Ruby conferences (not just ours) https://t.me/RubyMeditation

The Trailblazer Ride from the If Jungle into a Civilised Railway Station - Or...

Ruby Meditation

Speech of Orban Botond, Ruby Developer at Toptal, at Ruby Meditation 27, Dnipro, 19.05.2019 Slideshare - Next conference - http://www.rubymeditation.com/ Software development is a domain where everybody can make a beautiful sculpture or can quickly build an unsolvable maze. According to my observations the later happens more often unfortunately. In the title for my presentation both the If Jungle and the Civilised Railway Station are methaphors representing the opposite ends of the scale of quality code. In my presentation I am going to present my personal experiences on how to get out from the trap of the if jungle by making the code to adhere to the SRP and DRY principles. I am also going to show the advantages of the Railway Oriented Programing using the 3 different libraries. The examples are going to be stereotypical errors, fun and easy to follow. Announcements and conference materials https://www.fb.me/RubyMeditation News https://twitter.com/RubyMeditation Photos https://www.instagram.com/RubyMeditation The stream of Ruby conferences (not just ours) https://t.me/RubyMeditation

What/How to do with GraphQL? - Valentyn Ostakh (ENG) | Ruby Meditation 27

Ruby Meditation

Speech of Valentyn Ostakh, Ruby Developer at Ruby Garage, at Ruby Meditation 27, Dnipro, 19.05.2019 Slideshare - Next conference - http://www.rubymeditation.com/ This talk explores basic concepts of GraphQL. The main goal is to show how GraphQL works and of what parts it consists of. From the Ruby side we will look at how to create a GraphQL schema. In addition, we will consider what pitfalls can be encountered at the start of work with GraphQL. Announcements and conference materials https://www.fb.me/RubyMeditation News https://twitter.com/RubyMeditation Photos https://www.instagram.com/RubyMeditation The stream of Ruby conferences (not just ours) https://t.me/RubyMeditation

New features in Rails 6 - Nihad Abbasov (RUS) | Ruby Meditation 26

Ruby Meditation

Speech of Nihad Abbasov, Backend Engineer at Digital Classifieds, at Ruby Meditation #26 Kyiv 16.02.2019 Next conference - http://www.rubymeditation.com/ What to expect from Rails 6? Review of new features. Announcements and conference materials https://www.fb.me/RubyMeditation News https://twitter.com/RubyMeditation Photos https://www.instagram.com/RubyMeditation The stream of Ruby conferences (not just ours) https://t.me/RubyMeditation

Security Scanning Overview - Tetiana Chupryna (RUS) | Ruby Meditation 26

Ruby Meditation

Speech of Tetiana Chupryna, Backend developer at GitLab, at Ruby Meditation #26 Kyiv 16.02.2019 Next conference - http://www.rubymeditation.com/ We’ll talk about different types of vulnerabilities, scanning tools and the whole process per se. Announcements and conference materials https://www.fb.me/RubyMeditation News https://twitter.com/RubyMeditation Photos https://www.instagram.com/RubyMeditation The stream of Ruby conferences (not just ours) https://t.me/RubyMeditation

Teach your application eloquence. Logs, metrics, traces - Dmytro Shapovalov (...

Ruby Meditation

This document discusses telemetry in applications. It defines telemetry as gathering data on application use and performance. Telemetry includes logs, metrics, and traces. Logs provide information for debugging, monitoring, and analysis. Metrics measure performance, health, errors and other indicators. Traces provide low-level debugging information. The document discusses how to implement logging, metrics and tracing in applications and what types of data each provides to various consumers like developers and security teams.

Best practices. Exploring - Ike Kurghinyan (RUS) | Ruby Meditation 26

Ruby Meditation

Speech of Ike Kurghinyan, Senior Software Engineer at VChain LLC, at Ruby Meditation #26 Kyiv 16.02.2019 Next conference - http://www.rubymeditation.com/ «Is there one grand unifying rule to software engineering? Can so-called best practices be somehow derived from that unifying rule? This speech is a humble attempt to explore the subject and provide you with tools for your own explorations.» Announcements and conference materials https://www.fb.me/RubyMeditation News https://twitter.com/RubyMeditation Photos https://www.instagram.com/RubyMeditation The stream of Ruby conferences (not just ours) https://t.me/RubyMeditation * The channel of the organizers of the meetup https://t.me/incredevly

Road to A/B testing - Alexey Vasiliev (ENG) | Ruby Meditation 25

Ruby Meditation

Speech of Alexey Vasiliev, Software Engineer at Railsware, at Ruby Meditation #25 Kyiv 08.12.2018 Next conference - http://www.rubymeditation.com/ In this talk, Alexey will tell about the project in which was necessary to implement A/B testing and what came out of it in result Announcements and conference materials https://www.fb.me/RubyMeditation News https://twitter.com/RubyMeditation Photos https://www.instagram.com/RubyMeditation The stream of Ruby conferences (not just ours) https://t.me/RubyMeditation

Concurrency in production. Real life example - Dmytro Herasymuk | Ruby Medita...

Ruby Meditation

Speech of Dmytro Herasymuk, WEB developer at Softermii, at Ruby Meditation #25 Kyiv 08.12.2018 Next conference - http://www.rubymeditation.com/ The modern world demands to be faster and faster. Engineers create more powerful CPUs every day, but our app depends on third party apps too often in the WEB world. So, even the fastest CPU can't cope with I/O delays. On the one hand multithreading could help in such cases, but on the other hand, it seems to be a hard decision of using concurrency in production. Dmytro would like to share his experience in this field Announcements and conference materials https://www.fb.me/RubyMeditation News https://twitter.com/RubyMeditation Photos https://www.instagram.com/RubyMeditation The stream of Ruby conferences (not just ours) https://t.me/RubyMeditation

Data encryption for Ruby web applications - Dmytro Shapovalov (RUS) | Ruby Me...

Ruby Meditation

Speech of Dmytro Shapovalov, Infrastructure Engineer at Cossack Labs, at Ruby Meditation #25 Kyiv 08.12.2018 Next conference - http://www.rubymeditation.com/ Making secure applications is not easy, especially when encryption tools are difficult and incomprehensible. We will talk about typical data security problems in web apps and how to implement encryption properly. We will review cryptographic approaches and exact tools that ensure that no sensitive data leaks from the application or database. Announcements and conference materials https://www.fb.me/RubyMeditation News https://twitter.com/RubyMeditation Photos https://www.instagram.com/RubyMeditation The stream of Ruby conferences (not just ours) https://t.me/RubyMeditation

Rails App performance at the limit - Bogdan Gusiev

Ruby Meditation

The document discusses optimizing Rails application performance. It begins by examining where Rails may be slow, such as ActiveRecord and Action Controller. The author advocates for effective database schema as the best general optimization technique. Specific optimizations should target problematic parts of the application and may include avoiding ActiveRecord, conditional GET requests, rewriting controllers in Rack, and introducing caching. The goals of optimization are to improve throughput, reduce infrastructure costs, and make targeted improvements where needed.

GDPR. Next Y2K in 2018? - Anton Tkachov | Ruby Meditation #23

Ruby Meditation

The document discusses how the General Data Protection Regulation (GDPR) coming into effect in 2018 has caused sleepless nights for developers similar to the Y2K issue in 1999. It notes that every developer should understand the details of GDPR, which it then summarizes as having 8 requirements for personal data handling, 4 pieces of advice, and 3 warnings. The requirements include features for deleting personal data, restricting data processing, exporting data, and editing personal data.

Postgres vs Elasticsearch while enriching data - Vlad Somov | Ruby Meditaiton...

Ruby Meditation

Postgres and Elasticsearch can both be used for enriching and searching unstructured data. Postgres performance improved significantly with the addition of multicolumn indexes and a GIN index with trgm_ops on text fields. Elasticsearch was generally faster for searches but Postgres optimization closed the gap. The document also compared index types like B-tree, GIN, GIST and the inner workings of analyzers and indexing in Elasticsearch.

Database Sharding in Rails Applications – Vitalik Danchenko | Ruby Meditatio...

Ruby Meditation

This document discusses database sharding in Rails applications. It begins with an introduction and agenda, then discusses whether Rails can scale and what scaling means. It covers scaling a Rails application by adding web workers, background jobs, and sharding the database. It provides examples of sharding database tables in Rails and gems that can be used. Finally, it discusses how one company implemented database sharding step-by-step and offers pros and cons of sharding.

Building MVP from business owner’s perspective – Piotr Latoszek | Ruby Medita...

Ruby Meditation

The presentation discusses building a Minimum Viable Product (MVP) from a business owner's perspective. It defines an MVP as the simplest version of a product that allows customers to use it and provides feedback. The presentation outlines how to prepare an MVP by defining its scope, writing testable hypotheses, and implementing a feedback loop to constantly refine the product. It emphasizes keeping the MVP simple, using free tools, and being flexible based on customer feedback.

Growing Rails Apps - Dmitry Zhlobo | Ruby Meditation #23

Ruby Meditation

The document discusses strategies for organizing code in large Rails applications to improve maintainability. It recommends namespacing models into submodules based on their domain, extracting custom controller actions into resourceful routes and separate controllers, and extracting complex logic from controllers into dedicated service objects to keep code organized, readable and maintainable as an application grows.

Residence permit EU - Gennadii Miroshnychenko

Ruby Meditation

Practical SOLID with Rails - Andrii Savchenko

Ruby Meditation

The document discusses the SOLID principles of object-oriented design, including the Single Responsibility Principle, Open-Closed Principle, Liskov Substitution Principle, Interface Segregation Principle, and Dependency Inversion Principle. It provides examples of how to apply these principles when designing classes in a Rails application to avoid tightly coupled code and god objects. The presentation encourages separating objects into specialized and reusable components following the SOLID principles for maintainable code over the long run of a project.

Open education - Artem Suchov

Ruby Meditation

Inside Out Ruby: Using MRI as a C library - Artur Pyrogovskyi

Ruby Meditation

Alice, Bob and Bastards - Andriy Savchenko

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Alice, Bob and Bastards - Andriy Savchenko