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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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TIL Tuples vs Arrays in Crystal

TIL Tuples vs Arrays in Crystal

4
Comments
2 min read
Utilizing Macros & Annotations in a Web Framework (Part 2)

Utilizing Macros & Annotations in a Web Framework (Part 2)

10
Comments
9 min read
A Rudimentary Blockchain Written in Crystal Pt. 1

A Rudimentary Blockchain Written in Crystal Pt. 1

5
Comments
2 min read
Performance Comparison, Rust vs Crystal with Redis

Performance Comparison, Rust vs Crystal with Redis

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Comments 21
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

13
Comments
4 min read
Athena 0.9.0

Athena 0.9.0

6
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

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

Crystal Fridays is in 30 minutes!

4
Comments
1 min read
Debug Crystal in VSCode via CodeLLDB

Debug Crystal in VSCode via CodeLLDB

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Comments 4
2 min read
Quick thought on Crystal

Quick thought on Crystal

8
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1 min read
Crystal Fridays!

Crystal Fridays!

3
Comments
1 min read
Streaming on Twitch!

Streaming on Twitch!

3
Comments
1 min read
A Crystal Mint Lemonade🍹🍃

A Crystal Mint Lemonade🍹🍃

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Comments 1
4 min read
Lenguajes de programación de nueva generación

Lenguajes de programación de nueva generación

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Comments 2
1 min read
The Rebirth of Athena

The Rebirth of Athena

5
Comments
10 min read
Monads, a bit of Functional flow into Object world.

Monads, a bit of Functional flow into Object world.

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Comments 2
3 min read
A Crystal in Go’s World

A Crystal in Go’s World

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Comments 6
4 min read
A Crystal Story: A container that sails!

A Crystal Story: A container that sails!

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Comments 4
6 min read
A Crystal Story: Simple Static File Server!

A Crystal Story: Simple Static File Server!

21
Comments
2 min read
Thanks for the advice, Crystal compiler!

Thanks for the advice, Crystal compiler!

12
Comments
6 min read
Crystal's Channels and the While Loop

Crystal's Channels and the While Loop

6
Comments
3 min read
A Crystal app adventure!

A Crystal app adventure!

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Comments 8
4 min read
2019 in review

2019 in review

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1 min read
CockroachDB via Crystal ... In under 50 lines

CockroachDB via Crystal ... In under 50 lines

7
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.

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)

5
Comments
1 min read
Using vue.js as an alternative to stimulus.js

Using vue.js as an alternative to stimulus.js

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Comments 2
6 min read
How to add HTTP Basic auth to Amber application

How to add HTTP Basic auth to Amber application

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Comments 1
2 min read
Build your first blockchain from scratch (#3 Finding the longest chain)

Build your first blockchain from scratch (#3 Finding the longest chain)

6
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6 min read
Render Component from Action in Lucky

Render Component from Action in Lucky

9
Comments
2 min read
Build your first blockchain from scratch (#2 DAG)

Build your first blockchain from scratch (#2 DAG)

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

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

9
Comments
4 min read
Base API: Self Hosted!

Base API: Self Hosted!

14
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2 min read
Double splat arguments in Crystal

Double splat arguments in Crystal

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Comments 2
1 min read
Enabling Crystal’s New Multicore Support

Enabling Crystal’s New Multicore Support

28
Comments
5 min read
How to parse CSV with double quote (") character in Crystal

How to parse CSV with double quote (") character in Crystal

9
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1 min read
Base API - Updates

Base API - Updates

7
Comments
1 min read
Object Validation with Assert

Object Validation with Assert

9
Comments
7 min read
Browsing The Web With Crystal

Browsing The Web With Crystal

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Comments 1
7 min read
Dependency Injection in Crystal

Dependency Injection in Crystal

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Comments 1
11 min read
Base - API for authentication, email sending, image upload and more!

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

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Comments 7
2 min read
Understating abstract classes

Understating abstract classes

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Comments 1
3 min read
Using custom IDs in Lucky

Using custom IDs in Lucky

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

oq - A portable/performant jq wrapper

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Comments 2
8 min read
Deploying Lucky apps to Elastic Beanstalk

Deploying Lucky apps to Elastic Beanstalk

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

4
Comments
1 min read
Productive logging with Athena & Crylog

Productive logging with Athena & Crylog

7
Comments
8 min read
Doing Crystal #3: Types, types, types

Doing Crystal #3: Types, types, types

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Comments 2
6 min read
Doing Crystal #2: Getting started with Crystal

Doing Crystal #2: Getting started with Crystal

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Comments 4
6 min read
Doing Crystal #1: A Ruby Comparison

Doing Crystal #1: A Ruby Comparison

15
Comments
4 min read
The New Hello World for faastRuby - The Serverless Platform for Ruby & Crystal - Part 1.

The New Hello World for faastRuby - The Serverless Platform for Ruby & Crystal - Part 1.

10
Comments
4 min read
The New Hello World for faastRuby - The Serverless Platform for Ruby & Crystal - Part 2.

The New Hello World for faastRuby - The Serverless Platform for Ruby & Crystal - Part 2.

8
Comments
5 min read
Utilizing Macros & Annotations in a Web Framework

Utilizing Macros & Annotations in a Web Framework

15
Comments 4
13 min read
Reapresentando o Hello World para faastRuby - A Plataforma Serverless para Ruby e Crystal - Parte II.

Reapresentando o Hello World para faastRuby - A Plataforma Serverless para Ruby e Crystal - Parte II.

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Comments 1
5 min read
Reapresentando o Hello World para faastRuby - A Plataforma Serverless para Ruby e Crystal - Parte I.

Reapresentando o Hello World para faastRuby - A Plataforma Serverless para Ruby e Crystal - Parte I.

8
Comments
4 min read
Creating a JSON API with Athena & Granite

Creating a JSON API with Athena & Granite

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Comments 14
24 min read
Background Jobs with Lucky

Background Jobs with Lucky

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Comments 2
3 min read
FaaStRuby: Serverless Functions as a Service for Ruby and Crystal

FaaStRuby: Serverless Functions as a Service for Ruby and Crystal

8
Comments
2 min read
Quick start with React on Lucky

Quick start with React on Lucky

11
Comments
2 min read
Google OAuth with Lucky

Google OAuth with Lucky

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Comments 1
5 min read
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