FunctionalRust

Author Pablo Picouto Garcia

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Examples of functional programing in Rust

Features

• Functions

• Type Classes

• Effect system

• Extension method

• Memory management

• Collection

• async-await

• channels

• promise

• pattern matching

• smart pointer

• NewTypes

• Do notation

• Union type

• Lens

• Dependency injection

Monads

Implementation of some of the most famous Monads you can find in Haskel or Scala

• Monad
• Try Monad
• Either Monad

Rust_IO

Macro implementation for [rust_io] defining several operators to be used emulating Haskel [do notation]

• RustIO

Crates dependency

Tokio

Features

• select

Hyper

Fast and safe HTTP for the Rust language.

• Client/Server

Tonic

A gRPC over HTTP/2 implementation focused on high performance, interoperability, and flexibility.

• Protobuf
• Client
• Server

Actix

Actix Web is a powerful, pragmatic, and extremely fast web framework for Rust.

• Server
• Web-Server

Kafka

Code example of Kafka consumer/producer and benchmark result producing/consuming 1000 records with 100kb size.

• Consumer
• Producer

Red Panda

Code example of Red Panda consumer/producer and benchmark result producing/consuming 1000 records with 100kb size.

• Consumer
• Producer

Dynamic loading

Dynamic loading, also known as dynamic linking or runtime linking, is a technique that allows programs to load and use external code (such as libraries) at runtime, instead of statically linking them at compile time

• Contract
• Plugin
• Program

Patterns

Creational

• Singleton
• Builder
• Factory

Structural

• Composite
• Decorator
• Facade

Behavioral

• Chain of responsibility
• Memento
• Strategy

Architecture

• Circuit breaker

Performance

Goose

Goose is a Rust load testing tool inspired by Locust.

• Simulation
• Mock server

Benchmark

 === PER REQUEST METRICS ===
 ------------------------------------------------------------------------------
 Name                     |        # reqs |        # fails |    req/s |  fail/s
 ------------------------------------------------------------------------------
 GET /hello               |       435,482 |         0 (0%) |     3629 |    0.00
 ------------------------------------------------------------------------------
 Name                     |    Avg (ms) |        Min |         Max |     Median
 ------------------------------------------------------------------------------
 GET /hello               |        3.90 |          1 |         103 |          4
 ------------------------------------------------------------------------------
 Slowest page load within specified percentile of requests (in ms):
 ------------------------------------------------------------------------------
 Name                     |    50% |    75% |    98% |    99% |  99.9% | 99.99%
 ------------------------------------------------------------------------------
 GET /hello               |      4 |      5 |      8 |     10 |     16 |     23
 ------------------------------------------------------------------------------
 Name                     |                                        Status codes 
 ------------------------------------------------------------------------------
 GET /hello               |                                       435,482 [200]
 -------------------------+----------------------------------------------------
 Aggregated               |                                       435,482 [200] 

 === OVERVIEW ===
 ------------------------------------------------------------------------------

Games

• Dragon Ball Z

• Monkey Island

• Golden Axe

• Street Fighter 2

• Street of Rage