98elements Awarded as a Top Polish B2B Company by Clutch

Clutch Award
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Tomek Wałkuski
16 Oct 2019
1 min read
In addition to being one of Clutch’s top firms in Eastern Europe, we are currently ranked as the No. 1 Custom Software Developer in Warsaw.

Will Open Banking Start a New Era in Digital Banking?

Open Banking PSD2 Fintech Digital Banking
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Olga Wałkuska
14 Oct 2019
4 min read
Looking around, you certainly notice that we are making more and more non-cash transactions. There is a great deal of options available: debit and credit cards, mobile applications of our banks, smart watches. There is no coming back to the old days, when you always had to carry cash with you.

HTTP request rate limiting with Micronaut & Resilience4j

Guide Java Micronaut
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Tomek Wałkuski
15 Feb 2019
4 min read
Continuing with my previous post, let's try to implement some simple rate limiting for our application using Micronaut's caching and Resilience4j.

JWT authentication with Micronaut

Guide Java JWT Micronaut
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Tomek Wałkuski
07 Feb 2019
5 min read
Micronaut makes creating web applications a breeze. The most interesting thing about it is that it does not use any runtime reflection and still provides a clean and enjoyable API, among others, thanks to compile time annotation based dependency injection.

New in Kotlin 1.3: inline classes

Kotlin
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Tomek Wałkuski
18 Oct 2018
2 min read
Kotlin 1.3 introduces inline classes. They are declared using inline keyword, placed before the class keyword. An inline class must have a single property initialized in the primary constructor.

Kotlin + Gradle + Spek 2 + JUnit 5 - a simple guide

Kotlin Testing TDD Guide
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Tomek Wałkuski
29 Aug 2018
3 min read
I wanted to try out Kotlin + Spek 2 testing framework combination. So here it is a step-by-step guide to build a simple application.

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