How to build a RESTful API using Golang and use HTTP/2?

You can use Golang to build a RESTful API that supports HTTP/2. The steps are as follows: Import the HTTP/2 module. Use the mux router to create a route definition handler function. Create an HTTP server with HTTP/2 support. Enable the HTTP/2 protocol and run the server.

Use Golang to build RESTful API and use HTTP/2

Background

HTTP/2 is the HTTP protocol The latest version, it offers many benefits such as faster page loading, higher throughput, and lower latency for complex requests. Golang, a popular language for building RESTful APIs, provides HTTP/2 support, allowing developers to take advantage of these benefits.

Code Example

The following is a simple Golang program that demonstrates how to use HTTP/2 to build a RESTful API:

package main

import (
    "fmt"
    "net/http"

    "github.com/gorilla/mux"
)

func main() {
    r := mux.NewRouter()
    r.HandleFunc("/", homeHandler).Methods("GET")
    r.HandleFunc("/user/{id:[0-9]+}", userHandler).Methods("GET")

    srv := &http.Server{
        Addr:          ":8080",
        ReadTimeout:   10 * time.Second,
        WriteTimeout:  10 * time.Second,
        IdleTimeout:   120 * time.Second,
        TLSNextProto:  make(map[string]func(*http.Server, *tls.Conn, http.Handler), 0),
    }

    // 启用 HTTP/2
    srv.TLSNextProto["h2"] = nextProtoFuncH2

    http.ListenAndServeTLS(":8080", "cert.pem", "key.pem", r)
}

func homeHandler(w http.ResponseWriter, r *http.Request) {
    fmt.Fprint(w, "Hello, HTTP/2!")
}

func userHandler(w http.ResponseWriter, r *http.Request) {
    vars := mux.Vars(r)
    id := vars["id"]
    fmt.Fprintf(w, "User with ID %s", id)
}

Note: Run this program Before doing this, make sure you have installed Golang and TLS certificates.

Practical case

Transfer large files:
The flow control mechanism of HTTP/2 makes it very suitable for delivering large files because it can send and receive in parallel data, thereby increasing speed.

Live streaming:
HTTP/2 supports server push, allowing live streaming applications to send data to clients quickly and efficiently.

Mobile Apps:
HTTP/2 performs very well on mobile devices and low-bandwidth connections, making it ideal for mobile applications.

Conclusion

Golang provides strong HTTP/2 support, allowing developers to easily build high-performance RESTful APIs. The advantages offered by HTTP/2, such as faster loading speeds and lower latency, make it ideal for a wide range of applications.

The above is the detailed content of How to build a RESTful API using Golang and use HTTP/2?. For more information, please follow other related articles on the PHP Chinese website!