ResponsibleAPI RESTful API

Responsible API is a secure PHP RESTful application that allows easy HTTP requests from
external requests fused by Json Web Tokens (JWT).
ResponsibleSDK is recommended to connect to the ResponsibleAPI\

Development

Version 1.4
This repo is open for contributions.

Features include:

1. JWT

   • to sign each request

2. Rate limiting

   • to limit requests to a timed window frame and options to allow unlimited requests

3. The Leaky bucket algorithm

   • used for request throttling

Requirements

PHP 7.x
Composer
ResponsibleSDK [recommended]

Installation

Install composer if not already
https://getcomposer.org/doc/00-intro.md

Install ResponsibleSDK [recommended for quick example]
https://github.com/vince-scarpa/responsibleSDK

$ cd <responsible sdk directory>
$ git clone https://github.com/vince-scarpa/responsibleAPI.git
$ composer install

Setup

In order for the ResponsibleAPI to initiate we need to add some basic configurations

1. Import the example sql file
2. Use or Create a .config file

Setup your storage

The ResponsibleAPI uses MySQL as Database storage, run the supplied responsible.sql file to install the required tables

Setup a config file

If you didn't get a .config file shipped in this repo then you'll need to create one.
In the repo root directory run the following or anyway you know to create and write to files

$ cd <responsible sdk directory>
$ mkdir config
$ touch config/.config

Your file structure should look like this

• responsibleAPI
  • config
    • .config
  • src
    • (...)

Edit your new .config file and paste the below code, change all credentials to reflect your storage
Note: The MASTER_KEY is the global "secret key" for system use to sign requests.
To generate a strong secret I recommend using a strong password generator, this has no length limit but do note you probably want to stick to 32bytes. The only tested characters are;

ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789`-=~!@#$%^&*()_+,./?;[]{}\|

DB_TYPE = 'mysql'
DB_PORT = '3306'
DB_NAME = '<YOUR_DB_NAME>'
DB_USER = '<YOUR_DB_USER_NAME>'
DB_PASSWORD = '<YOUR_DB_PASSWORD>'
DB_HOST = '<YOUR_DB_HOST>'

MASTER_KEY = '<YOUR_MASTER_SECRET>'

Basic usage

Setting up our API server

<?php
/**
 * Composer Autoloader
 */
require __DIR__ . '/responsibleAPI/vendor/autoload.php';

/**
 * Load Responsible API core
 */
require __DIR__ . '/responsibleAPI/src/responsible.php';

/**
 * Load Responsible API core
 */
use responsible\responsible;

// Initiate the API with no options, let ResponsibleAPI take care of all defaults
$responsible = responsible::API();

// Print the response
$responsible::response(true);

What does the above example give us? well, nothing really...
Just a permissions denied message and a server waiting for real requests.
To access the ResponsibleAPI server via requests you'll need to run the ResponsibleSDK, this can be found @
https://github.com/vince-scarpa/responsibleSDK or any other HTTP request method you're comfortable with

Options

Add options

$options = array(
    /**
     * Output type
     */
    'requestType' => 'json', // json, array, object, xml, html, debug

    /**
     * Headers
     */
    // Max control age header "Access-Control-Max-Age"
    'maxWindow' => 86400, // Defaults to 3600 (1 hour)

    /**
     * Add custom headers
     * Custom headers must be create in the below format
     * nothing will happen if not, no errors no added headers
     */
    'addHeaders' => array(
        ['x-my-new-responsible-api', '1.2'],
    ),

    /**
     * JWT refresh options
     */
    'jwt' => [
        'leeway' => 10, // n seconds leeway for expiry
        'issuedAt' => time(),
        'expires' => time() + 300,
        'notBeFor' => 'issuedAt', // issuedAt, or e.g (time()+10)
    ],

    /**
     * Rate limiter
     */
    'rateLimit' => 1000, // API call Limit
    'rateWindow' => 'MINUTE', // Window timeframe SECOND, MINUTE, HOUR, DAY, [CUSTOM/ A POSITIVE INTEGER]

    /**
     * --- Warning ---
     *
     * This will override any rate limits
     * No maximum calls will be set and the Responsible API
     * can run for as many calls and as often as you like
     * This should only be used for system admin calls
     */
    'unlimited' => false, // Unlimited API calls true / false or don't include to default to false

    /**
     * Leaky bucket
     *
     */
    'leak' => true, // Use token bucket "defaults to true"
    'leakRate' => 'default', // slow, medium, normal, default, fast or custom positive integer

    /**
     * Customise a middle ware class directory
     */
    'classRoute' => [
        'directory' => __DIR__ . '/src/service/endpoints', // ABSOLUTE_PATH_STRING, __DIR__ ect...,
        'namespace' => 'backmagic',
    ]
);
$responsible = responsible::API($options);