Implementing Akka Cluster Sharding for Stateful Persistent Entities (Scala)
Step‑by‑step guide to deploy Akka Cluster Sharding with typed persistence, including configuration, verification, and recovery procedures.
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akkaUsing Akka Typed Actors to Eliminate Runtime Message Casts
Learn how Akka Typed Actors replace unsafe runtime casts with compile‑time message safety, using a simple echo actor example and practical migration tips.
javaScala 3 Opaque Types: Zero-Cost Type Safety Without Wrapper Classes
Scala 3 opaque types give you distinct compile-time types with zero runtime overhead. Learn the syntax, a worked UserId/OrderId example, and the pitfalls: no pattern matching, manual APIs, and Scala 2 incompatibility.
Zero‑Cost Domain Types in Scala 3: Opaque Types Explained
Learn how Scala 3 opaque types give you compile‑time safety without runtime overhead, how they differ from value classes and case classes, see a worked example, and understand key trade‑offs.
Implementing Type‑Safe Request‑Response with Akka Typed Actors and the Ask Pattern
Learn how to define a type‑safe protocol, implement a Typed Actor, and use the Ask pattern for request‑response with Akka in Scala, including verification and recovery techniques.
Using Scala 3 Given/Implicit Parameters for Clean Dependency Injection
Learn how Scala 3's given/implicit parameters can reduce boilerplate in dependency injection while keeping type safety, with a concrete service‑layer example and tips for debugging implicit resolution.
Scala 3 Opaque Types: Type-Safe IDs Without Runtime Wrappers
Opaque types make UserId and OrderId distinct to the Scala 3 compiler while erasing to Long at runtime. Here's the pattern, what erasure costs, and how to verify both.
Practical Materialized Values in Akka Streams: Coordinating Side Effects Without Blocking
Learn how to use Akka Streams' materialized values to coordinate side effects like database writes while keeping backpressure intact, with a concrete Scala example and trade‑off analysis.
Scala Value Classes: Zero-Cost Domain Wrappers Without the Boxing Traps
Scala value classes (AnyVal) give you type-safe domain wrappers like UserId that usually cost nothing at runtime. Here's the mechanism, a worked example, and where boxing still bites.