sdogruyol

Prax Installation on Arch Linux

1 - Install dnsmasq

sudo pacman -Syu
sudo pacman -S dnsmasq

2 - Configure dnsmasq to resolve .test domains to localhost via creating /etc/NetworkManager/dnsmasq.d/prax:

sdogruyol

require "benchmark"

channel = Channel(Int32).new

spawn do
  loop do
    channel.receive
  end
end

sdogruyol

require "benchmark"
require "colorize"
require "http"
require "spec/dsl"

class String
  private PRIME_RK = 2097169u32

  def index_old(search : String, offset = 0)
    offset += size if offset < 0

sdogruyol

sysctl -w fs.file-max=12000500
sysctl -w fs.nr_open=20000500
ulimit -n 20000000
sysctl -w net.ipv4.tcp_mem='10000000 10000000 10000000'
sysctl -w net.ipv4.tcp_rmem='1024 4096 16384'
sysctl -w net.ipv4.tcp_wmem='1024 4096 16384'
sysctl -w net.core.rmem_max=16384
sysctl -w net.core.wmem_max=16384

sdogruyol

struct Upload
  field : String
  data : IO::Delimited
  meta : HTTP::FormData::FileMetadata
  headers : HTTP::Headers
end

def parse_multipart(env)
  HTTP::FormData.parse(env.request) do |field, data, meta, headers|
    yield Upload.new field, data, meta, headers

sdogruyol

lock '3.5.0'

set :application, 'your-app'
set :repo_url, 'https://github.com/your/app'
set :deploy_to, '/home/deploy/apps/your-app/'

namespace :deploy do
  after :updated, :build do
    on roles(:web) do
    	execute "cd '#{release_path}' && shards install"

sdogruyol

# Context is the environment which holds request/response specific
# information such as params, content_type e.g
class HTTP::Server
  class Context
    STORE = {} of String => Box

    def set(key, value)
      STORE[key] = {"object": Box.box(value), "type": typeof(value)}
    end

sdogruyol

require "benchmark"

Benchmark.bm do |x|
  $status_code = "200"
  $method = "GET"
  $path = "api/v1/users"
  
  x.report "Normal String" do
    10000000.times do
      "|#{$status_code}| #{$method} #{$path}"

sdogruyol

require "kemal"

post "/json_params" do |env|
  like_objects = env.params.json["_json"].as Array
  like_objects.each do |likes|
    likes_hash = (likes as Hash(String, JSON::Type))["likes"]
  end
end

Kemal.run

sdogruyol

require "kemal"

post "/json_params" do |env|
  json = env.params.json["likes"].as Array
  # You can learn the type like this
  puts json.first.class
  first = json.first.as Hash(String, JSON::Type)
  puts first["id"]
end