Craft Beer & Clojure
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The document summarizes Clojure, a functional programming language that runs on the JVM and JavaScript virtual machines. It notes that Clojure is strongly typed, functional, immutable, and allows macros and runtime polymorphism. It then discusses Clojure adoption in Finland, providing examples of startups and consultancies using it. Finally, it recommends some resources for learning Clojure, including books and online courses.
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inner workings of the JVM without imposing Java semantics to create a platform for building highly
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runtime technology that has been contributed so far, promising projects that leverage this technology,
active areas of development, and how developers can get involved.
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validation and specification library for Clojure/Script. In this talk,
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including Plumatic Schema and clojure.spec and demonstrate how to
elegantly solve real-world problems with it. Also, peek beyond the
runtime validation.
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Malli: inside data-driven schemasMetosin Oy Malli is a new Clojure/Script library for elegant data-driven data modelling. It is born from the real world needs of dynamic, distributed and multi-tenant systems: Schemas to describe the data should be first-class data. They should drive the runtime value transformations, web forms, rules and processes. Configuration should be explicit – no magic, macros or mutability. We should be able to infer, create and modify the models at runtime, persist and load them back from database and share over the wire, for both Clojure and ClojureScript. Like JSON Schema, but for EDN & Clojure/Script.
In this talk, I’ll walk through the core concepts, features and the lessons learned on creating Malli. I’ll also demonstrate some cool new things we can do with literal data schemas and compare it to prior art, including clojure.spec, plumatic schema and JSON Schema.
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Clojure is awesome, and it can be fast too.
Video: https://www.youtube.com/watch?v=3SSHjKT3ZmA
Reitit - Clojure/North 2019
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https://www.meetup.com/Tampere-Clojure-Meetup/events/258958000/
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Clojutre Real Life (2012 ClojuTRE Retro Edition)Metosin Oy The document discusses using Clojure for a real-life public sector project. It finds that Clojure enables building a simple RESTful web application using CQRS and optionally event sourcing for managing domain models over time. The project evolved from patterns to tools effectively. Clojure allows rapid development through its functional programming approach and tooling.
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The Ancient Art of Data-Driven - reitit, the library - Metosin Oy The document summarizes a presentation about the Ancient Art of Data-Driven development using Clojure. It introduces the speaker and his company Metosin, which builds software using Clojure. It then discusses the benefits of taking a simple, data-driven approach to building systems by making everything explicit and understandable. Several Clojure libraries that take this approach are highlighted, including reitit for routing and DataScript for domain modeling. The presentation encourages taking a data-first approach and composing data, specifications, and routers to build optimized systems.
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Schema tools-and-trics-and-quick-intro-to-clojure-spec-22.6.2016
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Wieldy remote apis with Kekkonen - ClojureD 2016
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Our 2 cents is Kekkonen, a fresh new multi-paradigm api library for Clojure.
ClojuTRE2015: Kekkonen - making your Clojure web APIs more awesome
ClojuTRE2015: Kekkonen - making your Clojure web APIs more awesomeMetosin Oy Thanks to REST and Swagger, we can build beautiful apis to feed both our browser front-ends and external applications. But, wrapping your Clojure code into resources mostly for your ClojureScript front-end doesn't feel right? Just use RPC? Meet in the middle?
Kekkonen is a small library for managing your (web) apis as commands and queries. No magic, data-driven, un-restful and non-rpc. It's goals are to be small, explicit, extendable and to help enforce your business rules both on the server side and on the ClojureScript frontend. Besides Swagger, it provides run-time context-aware apidocs for Clojure(Script).
Clojure in real life 17.10.2014
Clojure in real life 17.10.2014Metosin Oy This document discusses Clojure, an immutable, functional programming language that runs on the JVM. It provides an overview of Clojure basics like its syntax, data structures, concurrency features and macros. It then discusses how Clojure is used in practice, including common tools, frameworks and patterns for web development, testing, persistence and more. Real-world examples are given throughout.
Euroclojure2014: Schema & Swagger - making your Clojure web APIs more awesome
Euroclojure2014: Schema & Swagger - making your Clojure web APIs more awesomeMetosin Oy - The document discusses using Prismatic Schema and Swagger to describe, validate, and document Clojure web APIs. It covers topics like Schema validation and coercion, Ring-Swagger, Compojure-API, and Fnhouse-Swagger integration.
- Ring-Swagger implements the Swagger specification for Ring and uses Schema for data models and coercion. Compojure-API is an extendable web API library that uses Schema and generates Swagger documentation. Fnhouse-Swagger provides Swagger support for the Fnhouse library.
- The document encourages adopting Schema and Swagger tools to build robust and well-documented Clojure web APIs in a consistent manner across different frameworks.
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- 1. Craft Beer & Clojure 2.11.2017
- 2. The Beer!
- 3. Clojure • Strongly typed, dynamic language • Functional & immutable at the core • Homoiconic (code is data) • Macros & runtime polymorphism • REPL Workflow • Main targets are JVM & JS – Thank you for all the libs :)
- 4. Why Clojure?
- 6. :stats (1.5y project, 5+ developers)
- 10. Clojure in Finland • Lot’s of startups using Clojure(Script) • Many public sector projects written in Clojure • Most software consultancies use it (Metosin, Solita, Siili, Reaktor) – Edge in both recruiting & gigs • Active meetup groups & ClojuTRE • Twitter: https://twitter.com/clojurefinland • Slack: https://clojurians.herokuapp.com
- 11. So, what’s the language like?
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- 13. Demo time
- 14. Getting started • Books: – Clojure Programming – The Joy of Clojure, 2nd – Web Development with Clojure, 2nd • Online – 4clojure (https://www.4clojure.com/) – ClojureDocs (http://clojuredocs.org/) – FP with Clojure (http://mooc.cs.helsinki.fi/clojure) – Brave Clojure (https://www.braveclojure.com/)
- 15. Thanks. Tommi Reiman / @ikitommi http://www.metosin.fi
- 16. Bonus Slides