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@a2f0
a2f0 / stats_logger.rb
Created March 26, 2019 01:48 — forked from LeZuse/stats_logger.rb
Puma plugin for stats logging on Heroku
Puma::Plugin.create do
def production?
ENV.fetch('RACK_ENV', 'development') == 'production'
end
def log(msg)
if production?
Rails.logger.info msg
else
puts msg
@LeZuse
LeZuse / stats_logger.rb
Last active June 21, 2021 13:53
Puma plugin for stats logging on Heroku
Puma::Plugin.create do
def production?
ENV.fetch('RACK_ENV', 'development') == 'production'
end
def log(msg)
if production?
Rails.logger.info msg
else
puts msg
@laurenfazah
laurenfazah / express_postgress_knex.md
Last active November 26, 2022 13:19
Cheat Sheet: Setting up Express with Postgres via Knex

Express & Postgres via Knex

Note: <example> is meant to denote text replaced by you (including brackets).

Setup

// global dependencies
npm install -g knex
@pablen
pablen / Main.elm
Last active March 26, 2022 22:00
DOM mutation observer helper that will run a hook when a DOM node matching a selector is mounted or unmounted. This pattern is particularly useful for working with external JS libraries in your Elm apps, using minimal amount of code. The helper leverages the MutationObserver API (https://developer.mozilla.org/es/docs/Web/API/MutationObserver).
-- Somewhere in you Elm app you can add editor by adding an empty node with the correct attributes.
-- The JS library will be initialized and destroyed automatically!
view : Model -> Html Msg
view model =
div []
[ div
[ attribute "data-ace" ""
, attribute "data-ace-theme" "monokai"
, attribute "data-ace-mode" "javascript"
@sanp
sanp / ssh_tunnelling.md
Last active February 21, 2017 21:43
Lightening Talk for Centro Tech Team on 2/15/17

SSH Tunneling

Problem

You want to query a DB and get a result set, but you don't have access to that DB directly from your localhost.

  • Bad solution A: Cry
  • Bad solution B: Ask someone who does have access to run your query for you
  • Bad solution C: ssh into a box that has access, then psql into the DB
@mdemin914
mdemin914 / Main.elm
Created January 24, 2017 01:15
example of fetching data with elm and remote data
module Main exposing (..)
import RemoteData exposing (WebData, RemoteData(..), asCmd, fromTask)
import Html exposing (Html, text, div, input, br)
import Html.Events exposing (onClick)
import Html.Attributes exposing (type_, value)
import Http exposing (get, toTask)
import Json.Decode exposing (Decoder, string)
import Json.Decode.Pipeline exposing (decode, required)
import Random exposing (int, generate)
class Entry < ActiveRecord::Base
validates :status_weather, inclusion: {
in: EntryStatus::OPTIONS[:weather]
}
validates :status_landform, inclusion: {
in: EntryStatus::OPTIONS[:landform]
}
@gaearon
gaearon / quiz.md
Last active January 11, 2024 16:56

A top-level App component returns <Button /> from its render() method.

  1. What is the relationship between <Button /> and this in that Button’s render()?

  2. Does rendering <Button><Icon /></Button> guarantee that an Icon mounts?

  3. Can the App change anything in the Button output? What and how?


@sschepens
sschepens / faraday_adapter_test.rb
Created September 5, 2016 23:55
Faraday concurrency test of adapters
require 'webrick'
require 'faraday'
require 'em-http'
require 'net/http/persistent'
require 'httpclient'
require 'typhoeus'
require 'typhoeus/adapters/faraday'
require 'patron'
require 'excon'
@gaearon
gaearon / connect.js
Last active April 11, 2024 06:46
connect.js explained
// connect() is a function that injects Redux-related props into your component.
// You can inject data and callbacks that change that data by dispatching actions.
function connect(mapStateToProps, mapDispatchToProps) {
// It lets us inject component as the last step so people can use it as a decorator.
// Generally you don't need to worry about it.
return function (WrappedComponent) {
// It returns a component
return class extends React.Component {
render() {
return (