README

Spear

• Introduction
• Getting Started
• How To Use
• Available Languages
• How does Spear work?

Introduction

Spear is a convinient PHP package that allows you to execute code in many different languages. It's simple to use and easy to install.

Getting Started

To get started using Spear you need to install it as a dependency in your php project using composer:

  composer require redberry/spear

and you're good to go 🙏

How to Use

Using Spear is a piece of cake procedure. you just need to instantiate Spear class and execute any available language code you'd like. The key concepts of the Spear are:

• Spear class which does the coordination between different language handler and returning actual output.
• Handler - on Spear class you can choose desired handler. Choosing handler is same as choosing with which language you'd like the code to be executed
• Every handler returns the output which has three kinds of information: success output, error output, exit code

Let's see how would we implement handling node code without input:

  <?php
  
  use Redberry\Spear\Facades\Spear;
  
  $nodeCode = "console.log('hello Spear!')";
  
  $data = Spear::node()->execute($nodeCode);
  
  dump($data->toArray());
  /**
   * [
   *  'result_code'   => 0,
   *  'error_message' => null,
   *  'output'        => 'hello Spear!',
   * ]
   */

Now, let's see how does it work with input:

  <?php
  
  use Redberry\Spear\Facades\Spear;
  
  $nodeCode = <<<END
    let data = '';
    
    const solve = () => {
      data = data.trim();
      console.log(`hello, ${data}`);
    }
    
    process.stdin.on('data', c => data += c);
    process.stdin.on('end', solve);
   END;
  
  $data = Spear::node()->execute($nodeCode, 'Speeeear');
  
  dump($data->toArray());
  /**
   * [
   *  'result_code'   => 0,
   *  'error_message' => null,
   *  'output'        => 'hello, Speeeear',
   * ]
   */

Available Languages

There are variety of languages available with spear. Here's a listing:

• PHP 8.1
• Node 14
• C++
• Python 3
• Ruby 3
• Rust
• Go
• Java
• Perl

How does Spear work?

Under the hood the Spear utilizes docker to create containers according to the handler and the language we'd like to use. Spear creates fresh new container for each execution, let's the code execute in the container, gets the output and then destroys the container. It's secure, flexibale and pretty amazing 😊