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RestApi plugin for CakePHP 3

This plugin provides basic support for building REST API services in your CakePHP 3 application. Read a detailed guide on how to implement this here - CakePHP: Build REST APIs with RestApi plugin

Requirements

This plugin has the following requirements:

• CakePHP 3.6.0 or greater.
• PHP 7.0 or greater.

Installation

You can install this plugin into your CakePHP application using composer.

The recommended way to install composer packages is:

After installation, Load the plugin

Or, you can load the plugin using the shell command

Usage

You just need to create your API related controller and extend it to ApiController instead of default AppController. You just need to set you results in apiResponse variable and your response code in httpStatusCode variable. For example,

You can define your logic in your action function as per your need. For above example, you will get following response in json format,

The URL for above example will be http://yourdomain.com/foo/bar. You can customize it by setting the routes in APP/config/routes.php.

Simple :)

Configurations

This plugin provides several configuration related to Response Format, CORS , Request Logging and JWT authentication. The default configurations are as below and defined in RestApi/config/api.php.

Set debug to true in your development environment to get original exception messages in response.

Request authentication using JWT

You can check for presence of auth token in API request. By default it is enabled. You need to define a flag allowWithoutToken to true or false. For example,

Above API method will require auth token in request. You can pass the auth token in either header, in GET parameter or in POST field.

If you want to pass token in header, use below format.

In case of GET or POST parameter, pass the token in token parameter.

Generate jwt token

This plugin provides Utility class to generate jwt token and sign with same key and algorithm. Use JwtToken::generate() method wherever required. Most probably, you will need this in user login and register API. See below example,

cors

By default, cors requests are enabled and allowed from all domains. You can overwrite these settings by creating config file at APP/config/api.php. The content of file will look like,

To disable cors request, set enabled flag to false. To allow requests from specific domains, set them in origin option like,

Log request & response

By default, request log is disabled. You can overwrite this by creating/updating config file at APP/config/api.php . The content of file will look like,

After enabling the log, you need to create a table in your database. Below is the table structure.

Or you can use the bake command to automatically generate the above table.

Response format

The default response format of API is json and its structure is defined as below.

If you have set httpResponseCode to any value other that 200, the status value will be NOK otherwise OK. In case of exceptions, it will be handled automatically and set the appropriate status code.

You can modify the default response configuration like the text for OK response, key for main response data, etc. by overwriting them in your APP/config/api.php file.

Examples

Below are few examples to understand how this plugin works.

Retrieve articles

Let's create an API which returns a list of articles with basic details like id and title. Our controller will look like,

The response of above API call will look like,

Exception handling

This plugin will handle the exceptions being thrown from your action. For example, if you API method only allows POST method and someone makes a GET request, it will generate NOK response with proper HTTP response code. For example,

The response will look like,

Another example of throwing an exception,

And the response will be,

Reporting Issues

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

Credits

This work is based on the code by vishal2995.