Tommi Reiman ikitommi

## 2024-01-02.md

      
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                Clojurians Together 2024
              
          
    Clojurists Together Project Update, 01-02/2024, Tommi Reiman

Worked on a big new release of Malli and wrote a blog post about it.
Reitit should be now feature-complete for OpenAPI, will cut out release soon.
Helped users to use and adopt the libs.
0.14.0 (2024-01-16)


## iframe.html
<html>
<body>
<h1>framed!</h1>
</body>
</html>

## 01-02.2023.md

      
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                ikitommi
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              December 31, 2023 11:46
            
              
                Clojurists Together Project Updates 2023
              
          
    Clojurists Together Project Update, 01-02/2023, Tommi Reiman

Spend a lot of time with Malli and Reitit for revisiting, priorising and designing the essential missing core features.
For Malli, my top priority is to resolve the derivation and declaration of effective types, which will simplify library internals, writing schema extensions and makes CLJS bundle size smaller. Might have to break the protocol-api for this.
For Reitit, drafting a proper plugin system, have studied how this is solved in other ecosystems (e.g. fastify, phoenix). Reitit is powerful, proper plugin system makes it much more approachable.
Have also reviews lot's of PRs, helped people online and pushed out some smaller features and release the following:

  
## what.md

      
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                ikitommi
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              December 1, 2022 18:32
            
              
                Fetch + Clojure/Script
              
          
    Given


local development, FE (3008) & BE (6047) running in separate ports
want to send and read cookies over fetch, BE sets, FE sends, http-only
in real environments, CORS is handled in api-gateway, so just need local CORS solution here

Solution


fetch needs to have :credentials set to "include" (different ports, "same-origin" doesn't seem to work)
because of 1, the local CORS can't have wildcards, you need list all possible headers, origins etc.


## malli-load-perf.md

      
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                ikitommi
                / malli-load-perf.md
            
            
              Created
              January 23, 2022 10:38
            
              
                Malli initialization speed
              
          
    Create a new project:
➜  ~ mkdir demo
➜  ~ cd demo
➜  demo echo '{:deps {metosin/malli {:mvn/version "0.8.0-20220123.082237-3"}} :aliases {:dev {:extra-paths ["classes"]}}}' > deps.edn
Loading takes ages:

  
## demo1.clj
;;
;; 1) using immutable support registry via options
;;

(ns demo
  (:require [malli.core :as m]
            [malli.registry :as mr]
            [malli.util :as mu]))

(def default-registry

## malli.md

      
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                ikitommi
                / malli.md
            
            
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              March 2, 2022 12:00
            
              
                Clojurists Together Malli Project Update, part1
              
          
    Clojurists Together Project Update, Malli, part 1/3 (09-10/2021)

Have spent a lot of time working with Malli internals: on hammock, paper protos,
reading about stuff done elsewhere, perf tuning and testing, better designs, in the mushroom forest,
refactoring and finally, an initial new internal design I'm quite happy with.
The Performance gains


Malli has now an 1-2 orders of magnitude faster Schema inferrer
Malli's runtime validation and transformation performance is on most cases better than using idiomatic hand-written Clojure, while being fully declarative.


## user.clj
(require '[malli.core :as m])
(require '[malli.transform :as mt])
(require '[edamame.core :as e])
(require '[clojure.walk :refer [prewalk]])

(defrecord Wrapped [])

(defn parse
  "Parses an EDN String with edamame and returns a tuple2 of edn-value & path-vec->loc"
  [s]

## schema.edn
{:id "Lillan"
 :tags #{:artesan :coffee ":hotel"}
 :address {:street "Ahlmanintie 29"
           :city "Tampere"
           :zip "33100"
           :lonlat [61.4858322, 23.7854658]}}

## user.clj
(require '[malli.core :as m])
(require '[malli.registry :as mr])

;; - cljs: :closure-defines {malli.registry/type "custom"}
;; -  clj: :jvm-opts ["-Dmalli.registry/type=custom"]
(mr/set-default-registry!
  (mr/lazy-registry
    (mr/composite-registry
      ;; the defaults
      (m/default-schemas)
	;;
	;; 1) using immutable support registry via options
	;;

	(ns demo
	(:require [malli.core :as m]
	[malli.registry :as mr]
	[malli.util :as mu]))

	(def default-registry
	(require '[malli.core :as m])
	(require '[malli.transform :as mt])
	(require '[edamame.core :as e])
	(require '[clojure.walk :refer [prewalk]])

	(defrecord Wrapped [])

	(defn parse
	"Parses an EDN String with edamame and returns a tuple2 of edn-value & path-vec->loc"
	[s]
	{:id "Lillan"
	:tags #{:artesan :coffee ":hotel"}
	:address {:street "Ahlmanintie 29"
	:city "Tampere"
	:zip "33100"
	:lonlat [61.4858322, 23.7854658]}}
	(require '[malli.core :as m])
	(require '[malli.registry :as mr])

	;; - cljs: :closure-defines {malli.registry/type "custom"}
	;; - clj: :jvm-opts ["-Dmalli.registry/type=custom"]
	(mr/set-default-registry!
	(mr/lazy-registry
	(mr/composite-registry
	;; the defaults
	(m/default-schemas)