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Functional Programming Fundamentals in Kotlin with Arrow

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Upcoming EventsFunctional Programming Fundamentals in Kotlin with ArrowFunctional Programming Fundamentals in Kotlin with Arrow

Functional Programming Fundamentals in Kotlin with Arrow

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In this intensive two-day course, we’ll cover Functional Programming essentials in Kotlin. By the end of this course, you will have a solid grasp on the Fundamentals of the language.

Course content

Lesson 1: Functional Programming

Functional programming essentials.​

  • Fundamentals of FP. What is it, what is it good for.
  • Purity, referential transparency, substitution model.
  • Side effects.
  • Higher order functions.
Lesson 2: Domain Modeling and ADTs

Modeling your program’s data through the concept of Algebraic Data Types.

  • Kotlin type system and its impact on how compiler understands code.
  • Algebraic Data Types.
  • Modeling program choices by ADTs.
  • The Nothing bottom type and inference.
  • Kotlin standard library product types.
  • Arrow product and sum types.
  • Arrow Coproducts.
  • Arrow Union types (powered by Arrow Meta).
  • Refined types (powered by Arrow Meta).
Lesson 3: Immutable Data and Optics

How to optimize reusability and composition for immutable data structures using Optics.

  • Understanding optics as a path for reading / modification.
  • How optics improve Kotlin standard library copy syntax.
  • Going over all the available types of optics.
  • Optics composition and reusability.
Lesson 4: Error-Handling and Data Validation​

Learning how to handle errors in our programs.

  • Option datatype.
  • Either datatype.
  • Computational bias: Having a happy path in our types.
  • Fail fast vs error accumulation strategies.
  • ValidatedNel as a mean to accumulate errors.
  • How to handle errors on concurrent contexts? 👇
Lesson 5: Diving into Suspend
  • suspend from Kotlin stdlib, what it represents, how it works.
  • What does suspend translate to at compile time (CPS).
  • How we leverage that with Arrow Fx Coroutines.
  • The power of delimited continuations, “the mother of all monads”.
  • Equivalence between wrapped approaches and Kotlin suspend.
  • Removing the need for IO wrappers.
  • suspend as a mean to track side effects at compile time.
Lesson 6: Arrow Fx Coroutines
  • A pure functional implementation of Kotlin suspend system.
  • Handling errors in concurrent contexts by leveraging suspend + Either.
  • Concurrency solved by Arrow Fx Coroutines operators.
  • Collaborative cancellation checked by all operators.
  • Cancellable effects.
  • Evaluating effects on arbitrary contexts.
  • Fibers as lightweight threads: ForkAndForget / ForkConnected / ForkScoped.
  • Concurrent resource safety.
  • Handling concurrent mutable state.
  • parallelization operators.
  • Traversing effects.
  • Racing effects.
  • Reusable and highly composable retry & repeat strategies.
Lesson 7: Resource Safety
  • Resource
  • Bracket
Lesson 8: Functional Streams
  • Lightweight streams.
  • Pull based - key differences vs other known streaming libraries.
  • Built-in backpressure.
  • Chunk based streams.
  • Embedded effects.
  • Stream interruption.
  • Queues.
  • Lightweight stream apis.
  • Safely streaming resources with automatic scoping.

  • $1100
  • -50%

Enroll for $550Starts on July 21 at 9 am CET

Company and Private Group Training

Trainers

Jorge Castillo

Jorge Castillo

Senior Software Engineer

Skills

  • Kotlin
  • Functional Programming Essentials
  • Type classes
  • Error Handling
  • Output

This Instructor-Led Course includes:

  • Maximum Class Size of 15
  • Access to Academy EduTools Platform
  • Access to Course Materials
  • Certificate of Completion
  • Access to the Academy Slack

Requirements:

  • One year of experience using Kotlin or similar Functional Programming-oriented languages

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