web application basics

Question 1

• What is the purpose of the net/http package?

Answer 1

It provides HTTP client and server implementations for building web applications in Go.

Question 2

• How do you start an HTTP server in Go?

Answer 2

By using http.ListenAndServe with a specified address and handler.

Question 3

• What is a ServeMux in Go?

Answer 3

It is an HTTP request multiplexer that matches the URL of each incoming request against a list of registered patterns and calls the corresponding handler.

Question 4

• How do you register a handler function for a specific route in Go?

Answer 4

By using http.HandleFunc with the route pattern and handler function.

Question 5

• What is the purpose of the http.ResponseWriter interface?

Answer 5

It assembles the HTTP server’s response by writing header and body data.

Question 6

• How can you serve static files in Go?

Answer 6

By using http.FileServer and http.StripPrefix to handle requests for static assets.

Question 7

• What is the role of the http.Handler interface?

Answer 7

It defines a method to serve HTTP requests and is implemented to create custom handlers.

Question 8

• How do you implement the http.Handler interface in Go?

Answer 8

By creating a struct with a ServeHTTP method that takes http.ResponseWriter and *http.Request as parameters.