TryHttp is a HTTP client / server gem, which supports to understand how HTTP works.
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TryHttp is a HTTP client / server gem, which supports to understand how HTTP works.


Add this line to your application's Gemfile:

gem 'tryhttp'

And then execute:

$ bundle

Or install it yourself as:

$ gem install tryhttp


First of all, you can start with understanding how TCP works. Tryhttp provides APIs to open TCP server and TCP client.

To start TCP server, you can write the code below.

require 'tryhttp'

server =
server.wait_for_receive { |data| p data }

Then, save the code above (e.g. main.rb) and run.

$ ruby main.rb

Now, you can connect to the server with port 20000. Open another terminal and type the command below to connect to the server.

$ nc localhost 20000

You can type anything you like. You can see server outputs what you type on the client window.

You may feel the server code is verbose as you CANNOT open the server with a single method.

However, it would be great help to understand state and lifecycle of TCP connection (such in open, listen, accept, etc).

Because Tryhttp is NOT for practical use but for learning how HTTP is working, the API is designed to make user understand how HTTP, based on TCP, is working step by step.


After checking out the repo, run bin/setup to install dependencies. Then, run rake test to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the .gem file to


Bug reports and pull requests are welcome on GitHub at This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the Contributor Covenant code of conduct.


The gem is available as open source under the terms of the MIT License.