The REST API is a built-in feature that provides an interface for other applications to interact with WordPress websites without needing to log in to the backend of the site or using the frontend interfaces. The API uses the HTTP protocol and JSON format to communicate data. This is the modern trend in application development where various separate applications or services are integrated together to build an advanced application. Since this is platform and language independent, we can use the REST API to provide site data to external services, platforms such as Android and IOS, and use it to build custom features within the site.
The default API methods allow you to interact with existing database tables and create, update, retrieve, and delete data. We also have the ability to define custom REST API methods and work with custom database tables to provide data...