I. Application Programming Interface
API (Application Programming Interface) is an extremely important part of systems in general and Magento 2 in particular. We will learn the way to create a custom API in Magento 2.
We need a tool to interact with the API, we will use Postman, one of the most popular tools.
You can try to Download
II. The way to create a custom API in Magento 2
First of all, we will create a new module with the following directory structure:
Firstly, we must define the API in etc/webapi.xml as below:
+ method: the way to get data, can be GET or POST
+ URL: Link address
+ class: link of the handler class
+ method: which method to handle this request
Next, we need to create an interface class as Api/FirstApiInterface.php:
The Mode/firstApi.php has the below content:
Finally, we need to create a preference at etc/di.xml as follow:
We need to run the following commands for the module to work:
- bin/magento setup:upgrade
- bin/magento setup:di:compile
- bin/magento cache:flush
To verify the result, we create a request in Postman with its URL:
The results response:
Good luck to you!