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Programming language: HTML
License: MIT License
Tags: Misc    

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README

Kreal

Kreal is a model sharing & RPC library built on and works with Kemal seamlessly with slick debugging interface.

Simple Tutorial

1. Create your remote models.

# 1. Load Kreal!
require "kreal"

# 2. Create your class
class Maths
  # Share your method to call remotely
  share :square

  # Remote method must have arguments.
  def self.square(args)
    args[0] * args[0]
  end
end

# Register your remote procedure
kreal Maths

# Rest of your Kemal app...
get "/" do
  # do not forget to load scripts/kreal.js
end

# Do not forget to run Kemal.
Kemal.run

2. Use your models via JavaScript API.

Add this to your scripts:

<script src="/scripts/kreal.js"></script>

Call your remote methods via Kreal magically.

(new Kreal).connect(function (KR) {

  // Call your function with a callback!
  KR.Maths.square(2, function (result) {
    console.log(result); // "4"
  });

});

Example App

crystal run ./example/example.cr

Open localhost:3000/kreal

Kreal Debugger

Kreal debugger enables itself when Kemal is on debug mode.

Debug

crystal build src/yourapp.cr

# Use the parameters of Kemal since it's built on Kemal.
yourapp -e development
[development] Kemal is ready to lead at http://0.0.0.0:3000

Now you have a debugging view at http://0.0.0.0:3000/kreal

Let's build a simple example

Let's build a simple OS bridge!

class OSBridge
  share :run

  def self.run(args)
    # Run command at os.
    `#{args[0]}`
  end
end

kreal OSBridge

Done!

Now use it from your JavaScript! 👌

Installation

Add this to your application's shard.yml:

dependencies:
  kreal:
    github: f/kreal

Contributing

  1. Fork it ( https://github.com/f/kreal/fork )
  2. Create your feature branch (git checkout -b my-new-feature)
  3. Commit your changes (git commit -am 'Add some feature')
  4. Push to the branch (git push origin my-new-feature)
  5. Create a new Pull Request

Contributors

  • @f Fatih Kadir Akın - creator, maintainer