CodeIgniter API Controller v.1.1.7

This extension is powered by Jeevan Lal.

Files

API Documentation

• \application\libraries\API_Controller.php
• \application\helpers\api_helper.php
• \application\config\api.php

Token Documentation

• \application\libraries\Authorization_Token.php
• \application\config\jwt.php
• PHP-JWT Library \application\third_party\php-jwt\

Installation

You can install this project into your PC using composer.

The recommended way to install composer packages is:

composer require ctechhindi/codeigniter-api:dev-master --prefer-source

Requirements

1. PHP 5.4 or greater
2. CodeIgniter 3.0+

Note: The library is used in CodeIgniter v3.8 and PHP 5.6.8.

DEMO

http://codeigniter-api.speedtyping.in/api/user/login

Simple API

header("Access-Control-Allow-Origin: *");

// API Configuration
$this->_apiConfig([
    /**
     * By Default Request Method `GET`
     */
    'methods' => ['POST'], // 'GET', 'OPTIONS'

    /**
     * Number limit, type limit, time limit (last minute)
     */
    'limit' => [5, 'ip', 'everyday'],

    /**
     * type :: ['header', 'get', 'post']
     * key  :: ['table : Check Key in Database', 'key']
     */
    'key' => ['POST', 'string_key' ], // type, {key}|table (by default)
]);

// return data
$this->api_return(
    [
        'status' => true,
        "result" => "Return API Response",
    ],
200);

Documentation

Setup API Request Methods

• This Function by default request method GET

$this->_APIConfig();

• Set API Request Method POST, GET, ..

$this->_APIConfig([
    'methods' => ['POST', 'GET'],
]);

---

Use API Limit

Before using the limit in API, we need to load the codeigniter database library. You can also load the database library in the autoload config config/autoload.php file.

After database library loaded, database must be set in database config file config/database.php.

After creating and setting up a database, we need to create a table for API Limit [api_limit] in the database. like this.

CREATE TABLE `api_limit` (
    `id` INT NOT NULL AUTO_INCREMENT ,  
    `user_id` INT NULL DEFAULT NULL ,  
    `uri` VARCHAR(200) NOT NULL ,  
    `class` VARCHAR(200) NOT NULL ,  
    `method` VARCHAR(200) NOT NULL ,  
    `ip_address` VARCHAR(50) NOT NULL ,  
    `time` TEXT NOT NULL ,    PRIMARY KEY  (`id`)
) ENGINE = InnoDB;

The name of the database table of api limit is api_limit by default. Which we can change through the API configuration file [config/api.php]. like this.

/**
 * API Limit database table name
 */
$config['api_limit_table_name'] = 'api_limit';

/**
 * Set API Timezone 
 */
$config['api_timezone'] = 'Asia/Kolkata';

Now we can use API Limit Method.

Thus this API can be run only 10 times in 5 minutes. It on IP address.

/**
 * API Limit
 * ----------------------------------
 * @param: {int} API limit Number
 * @param: {string} API limit Type (IP)
 * @param: {int} API limit Time [minute]
 */

$this->_APIConfig([
    // number limit, type limit, time limit (last minute)
    'limit' => [10, 'ip', 5] 
]);

At API limit time argument we can also use everyday which will follow the api limit per day. On the same API address

/**
 * API Limit
 * ----------------------------------
 * @param: {int} API limit Number
 * @param: {string} API limit Type (IP)
 * @param: {string} API limit [everyday]
 */

$this->_APIConfig([
    // number limit, type limit, everyday
    'limit' => [10, 'ip', 'everyday'] 
]);

---

Use API Key without Database

We can set the API key in the Request Header. by default, the name of the header is X-API-K, which we can change in the API config file [config/api.php]. like this

/**
 * API Key Header Name
 */
$config['api_key_header_name'] = 'X-API-KEY';

Use this code in your API Controller file.

/**
 * Use API Key without Database
 * ---------------------------------------------------------
 * @param: {string} Types
 * @param: {string} API Key
 */

$this->_APIConfig([
    'key' => ['header', 'Set API Key'],
]);

---

Use API Key with Database

We can also check the API key by databases. For this, we need to first create api_keys table in MySQL. like this

CREATE TABLE `api_keys` ( 
    `id` INT NOT NULL AUTO_INCREMENT ,  
    `api_key` VARCHAR(50) NOT NULL ,  
    `controller` VARCHAR(50) NOT NULL ,  
    `date_created` DATE NULL DEFAULT NULL ,  
    `date_modified` DATE NULL DEFAULT NULL ,    PRIMARY KEY  (`id`)
) ENGINE = InnoDB;

The name of the database table of API Keys is api_keys by default. Which we can change through the API configuration file [config/api.php]. like this.

/**
 * API Keys Database Table Name 
 */
$config['api_keys_table_name'] = 'api_keys';

Set API keys in api_keys database table And Use this code in your API Controller file.

/**
 * API Key
 * ---------------------------------------------------------
 * @param: {string} Types
 * @param: {string} [table]
 */
$this->_APIConfig([
    // 'key' => ['header', 'table'],
    'key' => ['header'], 
]);

---

Use Custom Function in API Key

/**
 * API Key
 * ---------------------------------------------------------
 * @param: {string} Types
 * @param: [function] return api key
 */
$this->_APIConfig([
    'key' => ['header', $this->key() ],
]);

// This is Custom function and return api key
private function key() {
    return 1452;
}

---

Add Custom Data in API Responses

In response to the API, we can also add custom data to something like this.

$this->_APIConfig([
    'key' => ['header'],
    'data' => [ 'is_login' => false ] // custom data
]);

API Output ::

{
    "status": false,
    "error": "API Key Header Required",
    "is_login": false
}

---

API Return Data

This method is used to return data to api in which the response data is first and the second request status code.

/**
 * Return API Response
 * ---------------------------------------------------------
 * @param: API Data
 * @param: Request Status Code
 */
$this->api_return(data, status_code);

Request Status Code List

Status Code	Status Text
200	OK
401	UNAUTHORIZED
404	NOT FOUND
408	Request Timeout
400	BAD REQUEST
405	Method Not Allowed

Using the Config file in the API key

1. Create config file \application\config\api_keys.php
2. Use in API Controller like this

// load API Keys config file
$this->load->config('api_keys');

$this->_APIConfig([
    'key' => ['post', $this->config->item('controller/api key name')],
]);

Reporting Issues

If you have a problem with this plugin or found any bug, please open an issue on GitHub.

License

CodeIgniter API Controller is licensed under MIT