How to handle MIME content types in RESTful API responses in Go?

To handle MIME content types in RESTful API responses in Go, you can use the net/http package along with the http.Header object. Here is an example on how to handle MIME content types in Go:

Import the necessary packages:

import (
    "net/http"
)

Set the appropriate content type header based on the requested MIME type:

func handler(w http.ResponseWriter, r *http.Request) {
    // Get the requested MIME type from the Accept header
    accept := r.Header.Get("Accept")

    // Set the appropriate content type header based on the requested MIME type
    switch accept {
    case "application/json":
        w.Header().Set("Content-Type", "application/json")
        // Handle JSON response
    case "application/xml":
        w.Header().Set("Content-Type", "application/xml")
        // Handle XML response
    case "text/html":
        w.Header().Set("Content-Type", "text/html")
        // Handle HTML response
    default:
        w.Header().Set("Content-Type", "text/plain")
        // Handle default response
    }

    // Write the response
    w.Write([]byte("Hello, World!"))
}

Start the HTTP server:

func main() {
    http.HandleFunc("/", handler)
    http.ListenAndServe(":8080", nil)
}

In the above example, the Accept header is checked to determine the requested MIME type. Based on the MIME type, the appropriate Content-Type header is set in the response. You can then handle the response based on the specified content type.

Note that this is a simplified example, and you may need to implement additional logic to handle more complex MIME content types or perform content negotiation based on the client's preference.