A example to utilize the OSSN RESTful API, it extends the existing API feature and add custom method to system This component add custom api method (my_custom_end_point) that can be called following way :

CURL https://www.mywebsite.com/api/v1.0/my_custom_end_point?api_key_token=<my_api_key_token> 

The output is simply the comparing two static variables and display api response.

You can edit this component and add more methods by simply adding below in function my_custom_end_point_register in file components/ExtendAPI/ossn_com.php

$methods['v1.0'][] = 'custom_method_second'; 

Once you added you need to create a file in components/ExtendAPI/plugins/default/services/v1.0/custom_method_second.php

To set success response use following :

$params['OssnServices']->successResponse("My message for success goes here"); 

For error:

$params['OssnServices']->throwError('200', "Error response here"); //don't change 200 error code, in case you want to have own error code , you may change it with your own custom error code.