CODEWITHSUNDEEP
rubypuma
nonopolarity
nonopolarity

Reputation: 151046

Is it possible to run Puma as a webserver all by itself?

I followed the instruction to do

gem install puma
puma

but it can't start a webserver, and is supposed to look for config.ru. Must Puma be run with Rack and Rails? Can Puma be run as a standalone webserver?

Upvotes: 1

Views: 678

Answers (2)

Scott Shaffer
Scott Shaffer

Reputation: 11

Yes. Sort of.

You do not have to have the rack gem installed, if that's what you are wondering. But perhaps that's because Puma contains it's own rack builder/handler.

https://medium.com/@lfv89/rackless-ruby-servers-why-not-a9f8430067dd

Here's the actual code snippet:

/puma-5.1.1/lib/puma/configuration.rb:328

  begin
    require 'rack'
    require 'rack/builder'
  rescue LoadError
    # ok, use builtin version
    return Puma::Rack::Builder
  else
    return ::Rack::Builder
  end

Upvotes: 1

max
max

Reputation: 102154

Is it possible to run Puma as a webserver without rack?

No.

Puma like Thin and Unicorn is a Rack server. Rack is just really a basic common gateway interface and I can't really see why you would want to build any sort of web application in Ruby without using Rack unless you want to build a server from scratch out of curiosity.

Building a basic hello world app with rack is trivial:

# config.ru
run ->(env) { [200, {"Content-Type" => "text/html"}, ["Hello World!"]] }

Must Puma be run with Rack and Rails?

Rails is not a requirement for any Rack server that I know of.

Upvotes: 1

Related Questions