Project Reactor expand method

One of my colleagues at work recently introduced me to the expand operator of the Project Reactor types and in…

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Spring WebClient and Java date-time fields

WebClient is Spring Framework‘s reactive client for making service to service calls. WebClient has become a go to utility for…

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Project reactor – de-structuring a Tuple

Tuples are simple data structures that hold a fixed set of items, each of a different data type. Project Reactor…

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Hash a Json

I recently wrote a simple library to predictably hash a json. The utility is built on top of the excellent…

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Unit test for Spring’s WebClient

WebClient to quote its Java documentation is Spring Framework’sNon-blocking, reactive client to perform HTTP requests, exposing a fluent, reactive API…

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Chicken and egg – resolving Spring properties ahead of a test

Consider a service class responsible for making a remote call and retrieving a detail: 01 02 03 04 05 06…

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Callback hell and Reactive patterns

One of the ways that I have better understood the usefulness of aReactive Streams based approach is how it simplifies…

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Functional Hystrix using Spring Cloud HystrixCommands

Spring’s WebClient provides a non-blocking client for making service to service calls.Hystrix, though now in a maintenance mode, has been…

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Water Pouring Problem with Kotlin and Vavr

The first time I saw the Water Pouring Problem being programmatically solved was the excellentlectures on functional Programming by Martin…

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