Scala Options

Tagless final pattern for abstracting over effects and building testable, composable Scala services

Functional error handling in Scala using Either, Try, Option, and validated error accumulation

ZIO effect system patterns for building type-safe, asynchronous, and concurrent Scala applications

Play Framework patterns for building type-safe web applications and REST APIs in Scala

http4s typeful HTTP library patterns for building pure functional Scala services with cats-effect

Akka typed actor system patterns for building reactive, distributed, and concurrent Scala applications

Apache Spark patterns for large-scale data processing with typed Datasets and Spark SQL in Scala

Cats typeclass library patterns for functional abstractions and effect composition in Scala

Circe JSON codec library patterns for type-safe JSON encoding and decoding in Scala

Scalafmt for code formatting and Scalafix for linting and automated refactoring in Scala projects

Scala JVM performance patterns including collection selection, lazy evaluation, and allocation avoidance

Scala security practices for input validation, serialisation safety, and avoiding unsafe reflection

Core Scala coding conventions for idiomatic, type-safe functional and object-oriented code

Pragmatic blend of OOP and functional patterns — use the right paradigm for each task.

Functional programming patterns: pure functions, immutability, composition.

Scala testing conventions with ScalaTest and property-based testing