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A helper module to implement Web API based on JWT authorization

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gplcart/api

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Build Status Scrutinizer Code Quality

API is a GPL Cart module that helps to implement WEB API for your GPLCart. Basically it provides a simple authorization mechanism based on JWT tokens and uses other modules for processing API requests. It does nothing by itself, so do not install unless other modules require it.

Dependencies

Installation

  1. Download and extract to system/modules manually or using composer composer require gplcart/api. IMPORTANT: If you downloaded the module manually, be sure that the name of extracted module folder doesn't contain a branch/version suffix, e.g -master. Rename if needed.
  2. Go to admin/module/list end enable the module
  3. Ajust module settings at admin/module/settings/api
  4. Grant module permissions to other administrators at admin/user/role
  5. Add some API users at admin/user/api

Usage

Look at example.php for code samples. API endpoint - http://yourdomain.com/api. This URL is used for initial login to get an access token. Once you got the token you are able to query API with URL arguments, e.g: http://domain.com/api/arg1/arg2/arg3. You can pass API version as a query parameter: http://yourdomain.com/api/arg1/arg2/arg3?varsion=1.0. Note: there is no way (yet) to refresh access tokens. You should re-login after your access token has expired.

Processors

Since the module does not process API requests by itself, you should use another module for this. The processor is responsible for system calls using an array of arguments from URL. This is how the module.api.process hook must be implemented in a module:

public function hookModuleApiProcess(array $params, array $user, &$response, $controller){
	
	$query = $params['query']; // GET query array
	$version = isset($query['version']) ? $query['version'] : 1; // API version
	
	list($arg1, $arg2) = $params['arguments']; // Exploded path arguments

	if($arg1 === 'products'){
		$response = array(...); // An array of products to be delivered to a client
}

By default all data from processors is delivered in JSON format. If you need another format then implement hook module.api.output

public function hookModuleApiOutput(array $arguments, array $user, $response, $controller){
    // Don't forget to set all needed headers
	echo $this->arrayToXml($response);
	exit; // Important. Abort further processing
}

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