We have learned about a few features of the Actix web framework. It is a really complex framework that covers most needs of the backend web developer, and it is still in active development.
Particularly, in the file_transfer_stub project, we learned how to create an API of a RESTful service. In the file_transfer project, we discussed how to implement the operations of our web service. In the memory_db project, we went through how to manage an inner state, in particular, one containing a database connection. In the json_db project, we have seen how to send a response in JSON format.
In the next chapter, we will be learning how to create a full server-side web application.