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@jimworm
jimworm / change_validator.rb
Created July 20, 2012 07:51
Enforce/prevent attribute change in Rails 3
class ChangeValidator < ActiveModel::EachValidator
# Enforce/prevent attribute change
#
# Example: Make attribute immutable once saved
# validates :attribute, change: false, on: :update
#
# Example: Force attribute change on every save
# validates :attribute, change: true
def initialize(options)
@hgfischer
hgfischer / benchmark+go+nginx.md
Last active April 11, 2024 22:09
Benchmarking Nginx with Go

Benchmarking Nginx with Go

There are a lot of ways to serve a Go HTTP application. The best choices depend on each use case. Currently nginx looks to be the standard web server for every new project even though there are other great web servers as well. However, how much is the overhead of serving a Go application behind an nginx server? Do we need some nginx features (vhosts, load balancing, cache, etc) or can you serve directly from Go? If you need nginx, what is the fastest connection mechanism? This are the kind of questions I'm intended to answer here. The purpose of this benchmark is not to tell that Go is faster or slower than nginx. That would be stupid.

So, these are the different settings we are going to compare:

  • Go HTTP standalone (as the control group)
  • Nginx proxy to Go HTTP
  • Nginx fastcgi to Go TCP FastCGI
  • Nginx fastcgi to Go Unix Socket FastCGI
@tanguyantoine
tanguyantoine / foo_type.rb
Created August 19, 2017 18:01
New Relic GraphQL Ruby instrumentation
Types::FoosType = GraphQL::ObjectType.define do
field :foos, !types[Types::FooType] do
timed true # enable New Relic trace_execution_scoped
description "Returns foos"
argument :per, types.Int, default_value: 20
argument :page, types.Int, default_value: 1
# Moving to cursor pagination would be better
resolve(...)
end
end