jacobobryant

How to let users upload images to S3 with Biff

UPDATE: Biff now includes a com.biffweb/s3-request function that can be used with the examples below, with some slight modifications.

Add the provided s3.clj file to your project, and set the following keys in config.edn and secrets.env:

;; config.edn
:s3/origin "https://nyc3.digitaloceanspaces.com"
:s3/edge "https://example.nyc3.cdn.digitaloceanspaces.com"

inscapist

(ns myapp.tailwind
  (:require
   [clojure.spec.alpha :as s]
   [clojure.string :as str]
   [vl.config :as config]))

(s/def ::class (s/or :string string? :vector vector?))
(s/def ::cs sequential?) ;; shorthand for classes
(s/def ::dim #{:screen :fill :h :vh :w :vw})
(s/def ::position #{:x-center :y-center :center}) ;; position utils for relative elements

spacegangster

;; UPD hey, I'm not sure now if those zones are correct throughout the year
;; see this https://www.creativedeletion.com/2015/01/28/falsehoods-programmers-date-time-zones.html
;; Sorry for misleading you
[{:option/value "Pacific/Tarawa"               :option/label "(GMT +12:00) Tarawa"}
 {:option/value "Pacific/Auckland"             :option/label "(GMT +12:00) New Zealand Time"}
 {:option/value "Pacific/Norfolk"              :option/label "(GMT +11:00) Norfolk Island (Austl.)"}
 {:option/value "Pacific/Noumea"               :option/label "(GMT +11:00) Noumea, New Caledonia"}
 {:option/value "Australia/Sydney"             :option/label "(GMT +10:00) Australian Eastern Time (Sydney)"}
 {:option/value "Australia/Queensland"         :option/label "(GMT +10:00) Australian Eastern Time (Queensland)"}
 {:option/value "Australia/Adelaide"           :option/label "(GMT +9:30) Australian Central Time (Adelaide)"}

yogthos

Introductory resources

• High level overview https://yogthos.github.io/ClojureDistilled.html
• An Animated Introduction to Clojure https://markm208.github.io/cljbook/
• Interactive tutorial in a browser https://tryclojure.org/
• Interactive exercises http://clojurescriptkoans.com/
• Clerk notebooks with introductory examples https://github.clerk.garden/anthonygalea/notes-on-clojure
• More interactive exercises https://4clojure.oxal.org/
• Lambda Island tutorials https://lambdaisland.com/
• Functional Programming with Clojure resources https://practicalli.github.io/

schmee

vector_clj/core$i256_add.invoke(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;  [0x000000011f8acdc0, 0x000000011f8ad058]  664 bytes
[Entry Point]
[Constants]
  # {method} {0x000000013253d3b8} 'invoke' '(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;' in 'vector_clj/core$i256_add'
  # this:     rsi:rsi   = 'vector_clj/core$i256_add'
  # parm0:    rdx:rdx   = 'java/lang/Object'
  # parm1:    rcx:rcx   = 'java/lang/Object'
  #           [sp+0x30]  (sp of caller)
  .....
  0x000000011f8acec3: prefetchw BYTE PTR [r10+0x180]

kachayev

Aleph, Async, HTTP, Clojure

I've been working with Aleph rougly for last 5 years, actively contributing to the library for last 2 (or so). I also put some effort into spreading the word about it, including educational tech talks, like "Deep HTTP Dive Throught Aleph & Netty". But the more I talk to people the more confusion I find, mostly about how Aleph works and what can you expect when adding it to your stack. Clojurists Together has recently announced Aleph to get Q1 funding, I think it's a good time to share my priorities and thoughts on development plans that were mentioned in the blog post. Hope the community would find it interesting and helpful.

Aleph describes itself as "asynchronous communication for Clojure" library. And you should probably pay a good portion of your attention to the first word: "asynchronous".

mfikes

git clone https://github.com/clojure/clojurescript
cd clojurescript
script/bootstrap
script/test

Ctrl-C when it logs

Applying optimizations :advanced to 344 sources

mfikes

Start cljs.main with rebel-readline:

clojure -Sdeps '{:deps {github-mfikes/cljs-main-rebel-readline {:git/url "https://gist.github.com/mfikes/9f13a8e3766d51dcacd352ad9e7b3d1f" :sha "27b82ef4b86a70afdc1a2eea3f53ed1562575519"}}}' -i @setup.clj -m cljs.main

swlkr

(ns switch
  (:require [clojure.pprint :as pprint]))

(defn project-clj-map [filename]
  (->> (slurp filename)
       (read-string)
       (drop 1)
       (partition 2)
       (map vec)
       (into {})))

bradwestfall

S3 Static Sites

⚠ This post is fairly old. I don't keep it up to date. Be sure to see comments where some people have posted updates

What this will cover

• Host a static website at S3
• Redirect www.website.com to website.com
• Website can be an SPA (requiring all requests to return index.html)
• Free AWS SSL certs
• Deployment with CDN invalidation