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The Crystal Programming language

This tag is for anything related to the Crystal programming language, its ecosystem, and related tooling. Development, usage, apps, shards, tips, and requests for help.

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Crystal 1.0

Crystal 1.0

Reactions 2 Comments 4
1 min read
Amber 1.0.0rc2 & Jennifer

Amber 1.0.0rc2 & Jennifer

Reactions 5 Comments
1 min read
ลอง event loop และ non-blocking IO ใน crystal-lang

ลอง event loop และ non-blocking IO ใน crystal-lang

Reactions 5 Comments
2 min read
UML diagram for GoF design pattern examples in Crystal

UML diagram for GoF design pattern examples in Crystal

Reactions 6 Comments
14 min read
Concurrency in Crystal (lang)

Concurrency in Crystal (lang)

Reactions 9 Comments 2
2 min read
Twitch EventSub - The Direct Approach to Getting Started With It

Twitch EventSub - The Direct Approach to Getting Started With It

Reactions 4 Comments
11 min read
Packaging your Crystal app into a Flatpak

Packaging your Crystal app into a Flatpak

Reactions 10 Comments 1
5 min read
Create your own privacy focused pastebin alternative

Create your own privacy focused pastebin alternative

Reactions 13 Comments
4 min read
A Not-So-Illustrated Guide to Translating Code From Ruby To Crystal

A Not-So-Illustrated Guide to Translating Code From Ruby To Crystal

Reactions 12 Comments
6 min read
Using GraphQL with Lucky

Using GraphQL with Lucky

Reactions 15 Comments 1
7 min read
Lucky is lightning fast!

Lucky is lightning fast!

Reactions 12 Comments 2
2 min read
Dreams from the multiverse where Crystal is as popular as Go and Rust

Dreams from the multiverse where Crystal is as popular as Go and Rust

Reactions 21 Comments 3
3 min read
Setting up a CRUD app in Lucky

Setting up a CRUD app in Lucky

Reactions 13 Comments
10 min read
Crystal - Plugin Pattern

Crystal - Plugin Pattern

Reactions 3 Comments
2 min read
Crystal Spec CLI Gotcha (--help)

Crystal Spec CLI Gotcha (--help)

Reactions 6 Comments
1 min read
Custom Spec Expectations

Custom Spec Expectations

Reactions 9 Comments
3 min read
Macro Tips: Avoid nesting macros if possible

Macro Tips: Avoid nesting macros if possible

Reactions 7 Comments
4 min read
LuckyFlow - The Basics

LuckyFlow - The Basics

Reactions 10 Comments
2 min read
An iterative validation of a new implementation

An iterative validation of a new implementation

Reactions 9 Comments
2 min read
Creating fast GUIs with Crystal, GTK and Glade

Creating fast GUIs with Crystal, GTK and Glade

Reactions 12 Comments
2 min read
Macro Tips: TypeDeclaration

Macro Tips: TypeDeclaration

Reactions 13 Comments
2 min read
Losing faith in ORMs

Losing faith in ORMs

Reactions 4 Comments 7
3 min read
My first FFI contribution!

My first FFI contribution!

Reactions 7 Comments
1 min read
Apologies for slandering the Jennifer ORM

Apologies for slandering the Jennifer ORM

Reactions 6 Comments 1
1 min read
Injecting electron apps with Crystal

Injecting electron apps with Crystal

Reactions 6 Comments
3 min read
Frustrations with Crystal ORMs

Frustrations with Crystal ORMs

Reactions 3 Comments 5
3 min read
Crystal JSON beyond the basics

Crystal JSON beyond the basics

Reactions 10 Comments
7 min read
A first look at Crystal as a Gopher

A first look at Crystal as a Gopher

Reactions 12 Comments
7 min read
Crystal Review

Crystal Review

Reactions 13 Comments 6
12 min read
Cross compile Crystal to aarch64

Cross compile Crystal to aarch64

Reactions 5 Comments
1 min read
Scraping DEV to measure your post quality

Scraping DEV to measure your post quality

Reactions 11 Comments 3
3 min read
Evidence of Crystal's power

Evidence of Crystal's power

Reactions 32 Comments 6
2 min read
Performance Comparison, Rust vs Crystal with Redis

Performance Comparison, Rust vs Crystal with Redis

Reactions 61 Comments 20
5 min read
HTTP(S) proxy server in Crystal in less than 50 lines of code

HTTP(S) proxy server in Crystal in less than 50 lines of code

Reactions 11 Comments
4 min read
How to deploy a Crystal Lucky application with Dokku on Ubuntu 18.04

How to deploy a Crystal Lucky application with Dokku on Ubuntu 18.04

Reactions 17 Comments
4 min read
Crystal Fridays is in 30 minutes!

Crystal Fridays is in 30 minutes!

Reactions 4 Comments
1 min read
Debug Crystal in VSCode via CodeLLDB

Debug Crystal in VSCode via CodeLLDB

Reactions 20 Comments 4
2 min read
Quick thought on Crystal

Quick thought on Crystal

Reactions 8 Comments
1 min read
Crystal Fridays!

Crystal Fridays!

Reactions 3 Comments
1 min read
Streaming on Twitch!

Streaming on Twitch!

Reactions 3 Comments
1 min read
A Crystal in Go’s World

A Crystal in Go’s World

Reactions 51 Comments 6
4 min read
Crystal's Channels and the While Loop

Crystal's Channels and the While Loop

Reactions 6 Comments
3 min read
2019 in review

2019 in review

Reactions 3 Comments
1 min read
CockroachDB via Crystal ... In under 50 lines

CockroachDB via Crystal ... In under 50 lines

Reactions 5 Comments
6 min read
Haye.cr: Expressive string syntax to Array/Hash and Vice-Versa parser for Crystal. Based on the javascript version.

Haye.cr: Expressive string syntax to Array/Hash and Vice-Versa parser for Crystal. Based on the javascript version.

Reactions 8 Comments
1 min read
Pope.cr: Micro templating engine for strings only. (Crystal version of Pope.js)

Pope.cr: Micro templating engine for strings only. (Crystal version of Pope.js)

Reactions 5 Comments
1 min read
How to add HTTP Basic auth to Amber application

How to add HTTP Basic auth to Amber application

Reactions 11 Comments 1
2 min read
Render Component from Action in Lucky

Render Component from Action in Lucky

Reactions 8 Comments
2 min read
Build your first blockchain from scratch (#2 DAG)

Build your first blockchain from scratch (#2 DAG)

Reactions 18 Comments
2 min read
Build your first blockchain from scratch (#1 Probabilistic Finality)

Build your first blockchain from scratch (#1 Probabilistic Finality)

Reactions 9 Comments
4 min read
Base API: Self Hosted!

Base API: Self Hosted!

Reactions 14 Comments
2 min read
Enabling Crystal’s New Multicore Support

Enabling Crystal’s New Multicore Support

Reactions 26 Comments
5 min read
Base API - Updates

Base API - Updates

Reactions 7 Comments
1 min read
Browsing The Web With Crystal

Browsing The Web With Crystal

Reactions 18 Comments 2
7 min read
Base - API for authentication, email sending, image upload and more!

Base - API for authentication, email sending, image upload and more!

Reactions 79 Comments 7
2 min read
Understating abstract classes

Understating abstract classes

Reactions 11 Comments 1
3 min read
Using custom IDs in Lucky

Using custom IDs in Lucky

Reactions 5 Comments
1 min read
oq - A portable/performant jq wrapper

oq - A portable/performant jq wrapper

Reactions 16 Comments 2
8 min read
Deploying Lucky apps to Elastic Beanstalk

Deploying Lucky apps to Elastic Beanstalk

Reactions 7 Comments
3 min read
I started a list of ruby gems and their crystal shard replacement

I started a list of ruby gems and their crystal shard replacement

Reactions 4 Comments
1 min read
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